ASTM B511-01(2009)

Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes

ABSTRACT
This specification covers hot- and cold-finished bars and shapes of wrought nickel-iron-chromium-silicon alloys with UNS Nos. N08330 and N08332 intended for heat-resisting applications and general corrosive service. Materials shall be furnished in the heat-treated condition, except that cold-drawn hexagons may be given a cold-drawn sizing pass subsequent to the final heat treatment. Specimens shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (thickness, width, length, and angularity), mechanical (tensile and yield strengths, and elongation), chemical composition, and grain size requirements.
SCOPE
1.1 This specification covers wrought alloys UNS N08330 and UNS N08332 in the form of hot-finished and cold-finished bar and shapes intended for heat-resisting applications and general corrosive service.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Sep-2009
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Relations

• Replaces: ASTM B511-01(2005) - Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
• Effective Date: 01-Oct-2009
• Referred By: ASTM B366/B366M-23 - Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
• Effective Date: 01-Oct-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B511 −01(Reapproved 2009)
Standard Specification for
Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
This standard is issued under the fixed designation B511; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers wrought alloys UNS N08330 3.1 Definitions of Terms Specific to This Standard:
and UNS N08332 in the form of hot-finished and cold-finished
3.1.1 bar, n—material round, rectangular, hexagonal,
bar and shapes intended for heat-resisting applications and
octagonal, or square solid section, furnished in straight lengths.
general corrosive service.
3.1.2 shapes, n—material of solid section in such forms as
1.2 The values stated in inch-pound units are to be regarded
angles, channels, tees, I-beams, and four-fluted bars.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
4. Ordering Information
and are not considered standard.
4.1 It is the responsibility of the purchaser to specify all
1.3 This standard does not purport to address all of the
requirements that are necessary for the safe and satisfactory
safety concerns, if any, associated with its use. It is the
performance of material ordered under this specification.
responsibility of the user of this standard to become familiar
Examples of such requirements include, but are not limited to
with all hazards including those identified in the appropriate
the following:
Material Safety Data Sheet (MSDS) for this product/material
4.1.1 Alloy (Table 1),
as provided by the manufacturer, to establish appropriate
4.1.2 Quantity (weight or number of pieces),
safety and health practices, and determine the applicability of
4.1.3 ASTM designation and year of issue,
regulatory limitations prior to use.
4.1.4 Section (round, square, I-beam, etc.),
2. Referenced Documents
4.1.5 Dimension, including length,
2.1 ASTM Standards: 4.1.6 Certification—State if certification is required.
B536 Specification for Nickel-Iron-Chromium-Silicon Al-
4.1.7 Samples for Product (Check) Analysis—State whether
loys (UNS N08330 and N08332) Plate, Sheet, and Strip
samples for product (check) analysis shall be furnished.
B880 Specification for General Requirements for Chemical
4.1.8 Purchaser Inspection—If a purchaser wishes to wit-
Check Analysis Limits for Nickel, Nickel Alloys and
ness tests or inspections of material at the place of
Cobalt Alloys
manufacture, the purchase order must so state indicating which
E8 Test Methods for Tension Testing of Metallic Materials
tests or inspections are to be witnessed.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5. Materials and Manufacture
E112 Test Methods for Determining Average Grain Size
5.1 All material shall be furnished in the heat-treated
E1473 Test Methods for Chemical Analysis of Nickel,
condition, except that cold-drawn hexagons may be given a
Cobalt, and High-Temperature Alloys
cold-draw sizing pass subsequent to the final heat treatment.
NOTE 1—Hot-finished rectangular bar in widths 10 in. (254 mm) and
under may be furnished as hot-finished plate with sheared or cut edges in
This specification is under the jurisdiction of ASTM Committee B02 on
accordance with Specification B536.
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2009. Published October 2009. Originally
6. Chemical Composition
approved in 1970. Last previous edition approved in 2005 as B511 – 01 (2005).
DOI: 10.1520/B0511-01R09.
6.1 The material shall conform to the requirements as to
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
chemical composition specified in Table 2.
cation SB-511 in Section II of that Code.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 If a product (check) analysis is performed by the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
purchaser, the material shall conform to the product (check)
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. analysis variations in accordance with Specification B880.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B511−01 (2009)
TABLE 1 Mechanical Properties
7.3 Annealing Temperature—Alloy UNS N08330 shall be
Elongation in annealed at 1900°F (1040°C) minimum. Alloy UNS N08332
Tensile Yield Strength
2 in. or 50
shall be annealed at 2100°F (1150°C) minimum.
Alloy Condition Strength, 0.2% off-set,
mm, or 4D,
min, psi (MPa) min, psi (MPa)
min, %
A
UNS annealed 70 000 (483) 30 000 (207) 30
8. Dimensions and Permissible Variations
N08330
UNS annealed 67 000 (462) 27 000 (186) 30
8.1 All bars and shapes shall conform to the permissible
N08332
variations in dimensions specified in Tables 3-14, inclusive.
A
Applies to round bar only. For other bar cross-sections and shapes the minimum
elongation shall be 25 %.
9. Workmanship, Finish, and Appearance
9.1 The material shall be uniform in quality and temper,
TABLE 2 Chemical Requirements
smooth, commercially straight, and free of injurious imperfec-
Composition
tions.
Element
Limits, %
A
10. Sampling
C .
Mn 2.00 max
10.1 Lot Definition:
P 0.03 max
S 0.03 max
10.1.1 A lot for chemical analysis shall consist of one heat.
Si 0.75–1.50
Cr 17.0–20.0 10.1.2 Alot for mechanical properties and grain size testing
Ni 34.0–37.0
shall consist of material from one heat of the same condition
Cu 1.00 max
and cross section, and in no case more than 30 000 lb (13 600
Pb 0.005 max
Sn 0.025 max kg) in weight.
B
Fe remainder
10.2 Test Material Selection:
A
Alloy UNS N08330: 0.08 max.
Alloy UNS N08332: 0.05–0.10.
10.2.1 Chemical Analysis—Representative samples from
B
Element shall be determined arithmetically by difference.
each lot shall be taken during pouring or subsequent process-
ing.
10.2.1.1 Product (check) analysis shall be wholly the re-
7. Mechanical and Other Properties
sponsibility of the purchaser.
7.1 The mechanical properties of the material at room
10.2.2 Mechanical Properties and Grain Size—Samples of
temperature shall conform to those shown in Table 1.
the material to provide test specimens for mechanical proper-
7.2 Grain Size—Annealed alloy UNS N08332 shall con- tiesandgrainsizeshallbetakenfromsuchlocationsineachlot
form to an average grain size of ASTM No. 5 or coarser. as to be representative of that lot.
TABLE 3 Permissible Variations in Size of Hot-Rolled Round and Square Bars
NOTE 1—Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same cross section.
NOTE 2—Out-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance
between opposite faces.
1 5 1
NOTE 3—Size tolerances for rounds in the size range from ⁄4 to ⁄16 in. (6.4 to 7.9 mm), incl, and for rounds in the size range from ⁄4 in. (6.4 mm)
to approximate ⁄8 in. (15.9 mm), which are produced on rod mills in coils, are not shown herein.
NOTE 4—Variations in size of coiled product made on rod mills are greater than size tolerances for product made on bar mills.
Size Tolerance
Out-of-Round (Note 1)
Specified Size
or Out-of-Square Section (Note 2)
Over Under
in. mm in. mm in. mm in. mm
1 5
⁄4 to ⁄16 6.4 to 7.9 0.005 0.13 0.005 0.13 0.008 0.20
5 7
Over ⁄16 to ⁄16 7.9 to 11.1 0.006 0.15 0.006 0.15 0.009 0.23
7 5
Over ⁄16 to ⁄8 11.1 to 15.9 0.007 0.18 0.007 0.18 0.010 0.25
5 7
Over ⁄8 to ⁄8 15.9 to 22.2 0.008 0.20 0.008 0.20 0.012 0.30
Over ⁄8 to 1 22.2 to 25.4 0.009 0.23 0.009 0.23 0.013 0.33
Over 1 to 1 ⁄8 25.4 to 28.6 0.010 0.25 0.010 0.25 0.015 0.38
1 1
Over 1 ⁄8 to 1 ⁄4 28.6 to 31.8 0.011 0.28 0.011 0.28 0.016 0.41
1 3
Over 1 ⁄4 to 1 ⁄8 31.8 to 34.9 0.012 0.30 0.012 0.30 0.018 0.46
Over 1 ⁄8 to 1 #4.9 to 38.1 0.014 0.36 0.014 0.36 0.021 0.53
1 1 1
Over 1 ⁄2 to 2 38.1 to 50.8 ⁄64 0.4 ⁄64 0.4 0.023 0.58
1 1
Over 2 to 2 ⁄2 50.8 to 63.5 ⁄32 0.8 0 0.023 0.58
1 1 3
Over 2 ⁄2 to 3 ⁄2 63.5 to 88.9 ⁄64 1.2 0 0.035 0.89
1 1 1
Over 3 ⁄2 to 4 ⁄2 88.9 to 114.3 ⁄16 1.6 0 0.046 1.17
1 1 5
Over 4 ⁄2 to 5 ⁄2 114.3 to 139.7 ⁄64 2.0 0 0.058 1.47
1 1 1
Over 5 ⁄2 to 6 ⁄2 139.7 to 165.1 ⁄8 3.2 0 0.070 1.78
1 5
Over 6 ⁄2 to 8 165.1 to 203.2 ⁄32 4.0 0 0.085 2.16
B511−01 (2009)
TABLE 4 Permissible Variations in Size of Hot-Rolled Hexagonal and Octagonal Bars
Size Tolerance Maximum Difference
Specified Sizes Measured Between Opposite Sides Measurements for
Over Under
Hexagons Only
in. mm in. mm in. mm in. mm
⁄2 to 1, incl 12.7 to 25.4 0.010 0.25 0.010 0.25 0.015 0.38
Over 1 to 1 ⁄2, incl 25.4 to 38.1 0.021 0.53 0.021 0.53 0.025 0.64
1 1 1 1
Over 1 ⁄2 to 2, incl 38.1 to 50.8 ⁄32 0.8 ⁄32 0.8 ⁄32 0.8
1 3 3 3
Over 2 to 2 ⁄2, incl 50.8 to 63.5 ⁄64 1.2 ⁄64 1.2 ⁄64 1.2
1 1 1 1 1
Over 2 ⁄2 to 3 ⁄2, incl 63.5 to 88.9 ⁄16 1.6 ⁄16 1.6 ⁄16 1.6
TABLE 5 Permissible Variations in Thickness and Width for Hot Rolled Flat Bars
Thickness Tolerances, in., for Given Thickness
Over ⁄2 Over 1
1 1
Specified ⁄8 to ⁄2, Over 2 to 4, Over 4 to 6, Over 6 to 8, Width Toler-
to 1, to 2,
Widths, in. incl incl incl incl ance
incl incl
Over and Under Over Under Over Under Over Under Over Under
To 1, incl 0.008 0.010 . . . . . . . 0.015 0.015
Over 1 to 2, incl 0.012 0.015 0.031 . . . . . . 0.031 0.031
Over 2 to 4, incl 0.015 0.020 0.031 0.062 0.031 . . . . 0.062 0.031
Over 4 to 6, incl 0.015 0.020 0.031 0.062 0.031 0.093 0.062 . . 0.093 0.062
Over 6 to 8, incl 0.016 0.025 0.031 0.062 0.031 0.093 0.062 0.125 0.156 0.125 0.156
Over 8 to 10, incl 0.021 0.031 0.031 0.062 0.031 0.093 0.062 0.125 0.156 0.156 0.187
Thickness Tolerances, mm, for Given Thickness
Over Over
3.2 to
12.7 to 25.4 to Over 50.8 to Over 101.6 to Over 152.4 to
12.7, Width Tolerance
25.4, 50.8, 101.6, incl 152.4, incl 203.2, incl
incl
i
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
An American National Standard Designation: B 511 – 01 (Reapproved 2009)
Designation:B511 –98a
Standard Specification for
Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
This standard is issued under the fixed designation B 511; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers wrought alloys UNS N08330 and UNS N08332 in the form of hot-finished and cold-finished bar
and shapes intended for heat-resisting applications and general corrosive service.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data
Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and
determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
B 536 Specification for Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and N08332) Plate, Sheet, and Strip
B 880 SpecificationforGeneralRequirementsforChemicalCheckAnalysisLimitsforNickel,NickelAlloysandCobaltAlloys
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E112 Test Methods for Determining the Average Grain Size
E 1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 barbar, n—material round, rectangular, hexagonal, octagonal, or square solid section, furnished in straight lengths.
3.1.2 shapesshapes, n—material of solid section in such forms as angles, channels, tees, I-beams, and four-fluted bars.
4. Ordering Information
4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for the safe and satisfactory
performance of material ordered under this specification. Examples of such requirements include, but are not limited to the
following:
4.1.1 Alloy (Table 1),
4.1.2 Quantity (weight or number of pieces),
4.1.3 ASTM designation and year of issue,
4.1.4 Section (round, square, I-beam, etc.),
4.1.5 Dimension, including length,
4.1.6 Certification—State if certification is required.
4.1.7 Samples for Product (Check) Analysis—State whether samples for product (check) analysis shall be furnished.
4.1.8 Purchaser Inspection—If a purchaser wishes to witness tests or inspections of material at the place of manufacture, the
This specification is under the jurisdiction of ASTM Committee B-2 B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on
Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 10, 1998. Published November 1998. Originally published as B 511–70. Last previous edition B 511–98.
Current edition approved Oct. 1, 2009. Published October 2009. Originally approved in 1970. Last previous edition approved in 2005 as B 511 – 01 (2005).
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-511 in Section II of that Code.
Annual Book of ASTM Standards, Vol 02.04.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 511 – 01 (2009)
TABLE 2 1 ChMemchanical Requi Propemenrties
Yield
Tensile
Strength or 50
Strength, Elongation in
EAlementloy Composndition 0.2% off-set, C mm, or 4D,
A
Limitsn, % psi 2in.
min, psi min, %
(MPa)
(MPa)
Mn 2.00 max
UNS annealed
N08330
P 0. 03 max
70 000 30 000 (207)
(483)
S 0.03 max
A
S 0.03 max 0
Si 0.75–1.50
UNS annealed
N08332
Cr 17. 0–20.0
67 000 27 000 (186)
(462)
Ni 34.0–37.0
Ni 30–37.0
Cu 1.00 max
Pb 0.005 max
Sn 0.025 max
B
Fe remainder
A
Appllies toy UNS N08330: 0.08 m round bax.
Allr only UNS N08332: 0.05–0.10.
B
El For othemr bar cross-senctions and shall bpe des ther mined arithmum
elongaticon shally by difference 25 %.
purchase order must so state indicating which tests or inspections are to be witnessed.
5. Materials and Manufacture
5.1 All material shall be furnished in the heat-treated condition, except that cold-drawn hexagons may be given a cold-draw
sizing pass subsequent to the final heat treatment.
NOTE 1—Hot-finished rectangular bar in widths 10 in. (254 mm) and under may be furnished as hot-finished plate with sheared or cut edges in
accordance with Specification B 536.
6. Chemical Composition
6.1 The material shall conform to the requirements as to chemical composition specified in Table 2.
TABLE 1 2 MecChanemical Prop Rertquirements
CondmpositionTensile
Yield Strength
Strength,
AElloyement 0.2% off-set,
Limin, ptsi
min, psi (MPa)
(MPa), %
Elongation in .or50
2in C mm, or 4D,
A
min, % . .
A
C .
UNS N08330 annealed
Mn 2.00 max
70 000 (483) 3 0 000 (207)
P 0.03 max
3S 0.03 max
S 0.03 max
UN S N08332 annealed
Si 0.75–1.50
67 000 (462) 2 7 000 (186)
Cr 17.0–20.0
Ni 30–37.0
Ni 34.0–37.0
Cu 1.00 max
Pb 0.005 max
Sn 0.025 max
B
Fe remainder
A
Alloy UNS N08330: 0.08 max.
Alloy UNS N08332: 0.05–0.10.
B
Element shall be determined arithmetically by difference.
B 511 – 01 (2009)
6.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis
variations per in accordance with Specification B 880.
7. Mechanical and Other Properties
7.1 The mechanical properties of the material at room temperature shall conform to those shown in Table 1.
7.2Grain Size—Annealed alloy UNS N08332 shall conform to an average grain size of ASTM No. 5 or coarser.
7.3Annealing Temperature—Alloy UNS N08330 shall be annealed at 1900°F (1040°C) minimum.Alloy UNS N08332 shall be
annealed at 2100°F (1150°C) minimum.
8.Dimensions and Permissible Variations
8.1All bars and shapes shall conform to the permissible variations in dimensions specified in Tables 3-.
7.2 Grain Size—Annealed alloy UNS N08332 shall conform to an average grain size of ASTM No. 5 or coarser.
7.3 Annealing Temperature—Alloy UNS N08330 shall be annealed at 1900°F (1040°C) minimum. Alloy UNS N08332 shall
be annealed at 2100°F (1150°C) minimum.
8. Dimensions and Permissible Variations
8.1 All bars and shapes shall conform to the permissible variations in dimensions specified in Tables 3-14, inclusive.
9. Workmanship, Finish, and Appearance
9.1 The material shall be uniform in quality and temper, smooth, commercially straight, and free of injurious imperfections.
10. Sampling
10.1 Lot Definition:
10.1.1 A lot for chemical analysis shall consist of one heat.
10.1.2 A lot for mechanical properties and grain size testing shall consist of material from one heat of the same condition and
cross section, and in no case more than 30 000 lb (13 600 kg) in weight.
10.2 Test Material Selection:
10.2.1 Chemical Analysis—Representative samples from each lot shall be taken during pouring or subsequent processing.
10.2.1.1 Product (check) analysis shall be wholly the responsibility of the purchaser.
10.2.2 Mechanical Properties and Grain Size—Samples of the material to provide test specimens for mechanical properties and
grain size shall be taken from such locations in each lot as to be representative of that lot.
11. Number of Tests
11.1 Chemical Analysis—One test per lot.
TABLE 3 Permissible Variations in Size of Hot-Rolled Round and Square Bars
NOTE 1—Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same cross section.
NOTE 2—Out-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance
between opposite faces.
1 5 1
NOTE 3—Size tolerances for rounds in the size range from ⁄4 to ⁄16 in. (6.4 to 7.9 mm), incl, and for rounds in the size range from ⁄4 in. (6.4 mm)
to approximate ⁄8 in. (15.9 mm), which are produced on rod mills in coils, are not shown herein.
NOTE 4—Variations in size of coiled product made on rod mills are greater than size tolerances for product made on bar mills.
Size Tolerance
Out-of-Round (Note 1)
Specified Size
or Out-of-Square Section (Note 2)
Over Under
in. mm in. mm in. mm in mm
1 5
⁄4 to ⁄16 6.4 to 7.9 0.005 0.13 0.005 0.13 0.008 0.20
5 7
Over ⁄16 to ⁄16 7.9 to 11.1 0.006 0.15 0.006 0.15 0.009 0.23
7 5
Over ⁄16 to ⁄8 11.1 to 15.9 0.007 0.18 0.007 0.18 0.010 0.25
5 7
Over ⁄8 to ⁄8 15.9 to 22.2 0.008 0.20 0.008 0.20 0.012 0.30
Over ⁄8 to 1 22.2 to 25.4 0.009 0.23 0.009 0.23 0.013 0.33
Over 1 to 1 ⁄8 25.4 to 28.6 0.010 0.25 0.010 0.25 0.015 0.38
1 1
Over 1 ⁄8 to 1 ⁄4 28.6 to 31.8 0.011 0.28 0.011 0.28 0.016 0.41
1 3
Over 1 ⁄4 to 1 ⁄8 31.8 to 34.9 0.012 0.30 0.012 0.30 0.018 0.46
Over 1 ⁄8 to 1 #4.9 to 38.1 0.014 0.36 0.014 0.36 0.021 0.53
1 1 1
Over 1 ⁄2 to 2 38.1 to 50.8 ⁄64 0.4 ⁄64 0.4 0.023 0.58
1 1
Over 2 to 2 ⁄2 50.8 to 63.5 ⁄32 0.8 0 0.023 0.58
1 1 3
Over 2 ⁄2 to 3 ⁄2 63.5 to 88.9 ⁄64 1.2 0 0.035 0.89
1 1 1
Over 3 ⁄2 to 4 ⁄2 88.9 to 114.3 ⁄16 1.6 0 0.046 1.17
1 1 5
Over 4 ⁄2 to 5 ⁄2 114.3 to 139.7 ⁄64 2.0 0 0.058 1.47
1 1 1
Over 5 ⁄2 to 6 ⁄2 139.7 to 165.1 ⁄8 3.2 0 0.070 1.78
1 5
Over 6 ⁄2 to 8 165.1 to 203.2 ⁄32 4.0 0 0.085 2.16
B 511 – 01 (2009)
TABLE 4 Permissible Variations in Size of Hot-Rolled Hexagonal and Octagonal Bars
Size Tolerance Maximum Difference
Specified Sizes Measured Between Opposite Sides Measurements for
Over Under
Hexagons Only
in. mm in. mm in. mm in mm
⁄2 to 1, incl 12.7 to 25.4 0.010 0.25 0.010 0.25 0.015 0.38
Over 1 to 1 ⁄2 , incl 25.4 to 38.1 0.021 0.53 0.021 0.53 0.025 0.64
1 1 1 1
Over 1 ⁄2 to 2, incl 38.1 to 50.8 ⁄32 0.8 ⁄32 0.8 ⁄32 0.8
1 3 3 3
Over 2 to 2 ⁄2 , incl 50.8 to 63.5 ⁄64 1.2 ⁄64 1.2 ⁄64 1.2
1 1 1 1 1
Over 2 ⁄2 to 3 ⁄2 , incl 63.5 to 88.9 ⁄16 1.6 ⁄16 1.6 ⁄16 1.6
TABLE 5 Permissible Variations in Thickness and Width for Hot Rolled Flat Bars
Thickness Tolerances, in., for Given Thickness
Over ⁄2 Over 1
1 1
Specified ⁄8 to ⁄2 , Over 2 to 4, Over 4 to 6, Over 6 to 8, Width Toler-
to 1, to 2,
Widths, in. incl incl incl incl ance
incl incl
Over and Under Over Under Over Under Over Under Over Under
To 1, incl 0.008 0.010 . . . . . . . 0.015 0.015
Over 1 to 2, incl 0.012 0.015 0.031 . . . . . . 0.031 0.031
Over 2 to 4, incl 0.015 0.020 0.031 0.062 0.031 . . . . 0.062 0.031
Over 4 to 6, incl 0.015 0.020 0.031 0.062 0.031 0.093 0.062 . . 0.093 0.062
Over 6 to 8, incl 0.016 0.025 0.031 0.062 0.031 0.093 0.062 0.125 0.156 0.125 0.156
Over 8 to 10, incl 0.021 0.031 0.031 0.062 0.031 0.093 0.062 0.125 0.156 0.156 0.187
Thickness Tolerances, mm, for Given Thickness
Over Over
3.2 to
12.7 to 25.4 to Over 50.8 to Over 101.6 to Over 152.4 to
12.7, Width Tolerance
25.4, 50.8, 101.6, incl 152.4, incl 203.2, incl
incl
incl incl
Over and Under Over Under Over Under Over Under Over Under
To 25.4, incl 0.20 0.25 . . . . . . . 0.38 0.38
25.4 to 50.8, incl 0.31 0.38 0.80 . . . . . . 0.80 0.80
50.8 to 101.6, incl 0.38 0.51 0.80 1.58 0.80 . . . . 1.58 0.80
101.6 to 152.4, incl 0.38 0.51 0.80 1.58 0.80 2.36 1.58 . . 2.36 1.58
152.4 to 203.2, incl 0.41 0.64 0.80 1.58 0.80 2.36 1.58 3.18 3.96 3.18 3.96
203.2 to 254.0, incl 0.53 0.80 0.80 1.58 0.80 2.36 1.58 3.18 3.96 3.96 4.75
TABLE 6 Permissible Variations in Size of Cold-Finished
Round Bars
NOTE 1—Sizetolerancesareoverandunderasshowninthetable.Also,
rounds can be produced to tolerances all over and nothing under, or all
under and nothing over, or any combination of over and under, if the total
spread in size tolerance for a specified size is not less than the total spread
shown in the table.
NOTE 2—When it is necessary to heat treat or heat treat and pickle after
cold finishing, size tolerances are double those shown in the table.
NOTE 3—Cold-finished bars over 4 in. (102 mm) in diameter are
produced; size tolerances for such bars are not included herein.
Size Tolerance (Note 1)
Specified Size
Over Under
in . mm in. mm in. mm
Over ⁄2 to 1, incl 12.7 to 25.4 0.002 0.05 0.002 0.05
1to1 ⁄2 , incl 25.4 to 38.1 0.0025 0.06 0.0025 0.06
1 ⁄2 to 4, incl (Note 38.1 to 0.003 0.08 0.003 0.08
2) 101.6
11.2 Grain Size—One test per lot.
11.3 Mechanical Properties—One test per lot.
12. Specimen Preparation
12.1 Tension test specimens shall be taken from material in the final condition and tested in the direction of fabrication.
12.1.1 All material shall be tested in full cross-section size when possible. When a full cross-section size test cannot be
performed, the largest possible round specimen shown in Test Methods E 8 shall be used. Longitudinal strip specimens shall be
B 511 – 01 (2009)
TABLE 7 Permissible Variations in Size of Cold-Finished
Hexagonal, Octagonal, and Square Bars
NOTE 1—When it is necessary to heat treat or heat treat and pickle after
cold finishing, size tolerances are double those shown in the table.
Permissible Variations from
Specified Size Specified Size
Over Under
in. mm in. mm
Over ⁄2 to 1, incl 12.7 to 25.4 0 0.004 0.10
Over 1 to 2, incl 25.4 to 50.8 0 0.006 0.15
Over 2 to 4, incl 50.8 to 101.2 0 0.008 0.20
Over 4 101.2 0 0.010 0.25
TABLE 8 Permissible Variations in Width and Thickness of Cold-Finished Flat Bars
NOTE 1—When it is necessary to heat treat or heat treat and pickle after cold finishing, tolerances are double those shown in the table.
NOTE 2—Cold-finished flat bars over 4 ⁄2 in. (114.3 mm) wide or thick are produced: width and thickness tolerances for such bars are not included
herein.
Width
...