ASTM A194/A194M-00b

Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

SCOPE
1.1 This specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1/4 through 4 in. and metric M6 through M100 nominal. It also covers austenitic stainless steel nuts in the size range 1/4 in. and M6 nominal and above. These nuts are intended for high-pressure or high-temperature service or both. Grade substitutions without the purchaser's permission are not allowed.
1.2 Bars from which the nuts are made shall be hot-wrought. The material may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be solution annealed or annealed and strain-hardened. When annealed and strain hardened austenitic stainless steel is ordered in accordance with Supplementary Requirement S1, the purchaser should take special care to ensure that 7.2.2, Supplementary Requirement S1, and Appendix X1 are thoroughly understood.
1.3 Supplementary requirements (S1 through S6) of an optional nature are provided. These shall apply only when specified in the inquiry, contract, and order.
1.4 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable" M" specification designation (SI units), the material shall be furnished to inch-pound units.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in noncomformance with the specification.

General Information

• Status: Historical
• Publication Date: 09-Oct-2001
• ICS: 21.060.20 - Nuts
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.22 - Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications

Relations

• Replaces: ASTM A194/A194M-00a - Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both
• Effective Date: 10-Oct-2001
• Replaced By: ASTM A194/A194M-01 - Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both
• Effective Date: 10-Oct-2001
• Referred By: ASTM A962/A962M-23a - Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
• Effective Date: 10-Oct-2001
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 10-Oct-2001
• Referred By: ASTM F3125/F3125M-22 - Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength
• Effective Date: 10-Oct-2001
• Referred By: ASTM F1476-07(2019) - Standard Specification for Performance of Gasketed Mechanical Couplings for Use in Piping Applications
• Effective Date: 10-Oct-2001
• Referred By: ASTM F1565-00(2019) - Standard Specification for Pressure-Reducing Valves for Steam Service
• Effective Date: 10-Oct-2001
• Referred By: ASTM B695-21 - Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
• Effective Date: 10-Oct-2001
• Referred By: ASTM F432-19 - Standard Specification for Roof and Rock Bolts and Accessories
• Effective Date: 10-Oct-2001
• Referred By: ASTM A320/A320M-22a - Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
• Effective Date: 10-Oct-2001
• Referred By: ASTM A563/A563M-21ae1 - Standard Specification for Carbon and Alloy Steel Nuts (Inch and Metric)
• Effective Date: 10-Oct-2001
• Referred By: ASTM F2437/F2437M-17 - Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs
• Effective Date: 10-Oct-2001
• Referred By: ASTM F3394/F3394M-20 - Standard Specification for Hardened Steel Backup and Reaction Washers Inch and Metric Dimensions<rangeref></rangeref >
• Effective Date: 10-Oct-2001
• Referred By: ASTM B994/B994M-22 - Standard Specification for Nickel-Cobalt Alloy Coating
• Effective Date: 10-Oct-2001
• Referred By: ASTM F1510-21 - Standard Specification for Rotary Positive Displacement Pumps, Ships Use
• Effective Date: 10-Oct-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 194/A 194M – 00b An American National Standard
Endorsed by
Manufacturers Standardization Society
of the Valve and Fittings Industry
Used in USNRC-RDT Standards
Standard Specification for
Carbon and Alloy Steel Nuts for Bolts for High Pressure or
1
High Temperature Service, or Both
This standard is issued under the fixed designation A 194/A 194M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope A 153/A 153M Specification for Zinc Coating (Hot-Dip) on
3
2
Iron and Steel Hardware
1.1 This specification covers a variety of carbon, alloy, and
4
1 A 276 Specification for Stainless Steel Bars and Shapes
martensitic stainless steel nuts in the size range ⁄4 through 4 in.
A 320/A 320M Specification for Alloy-Steel Bolting Ma-
and metric M6 through M100 nominal. It also covers austenitic
5
1 terials for Low-Temperature Service
stainless steel nuts in the size range ⁄4 in. and M6 nominal and
A 370 Test Methods and Definitions for Mechanical Testing
above. These nuts are intended for high-pressure or high-
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of Steel Products
temperature service or both. Grade substitutions without the
A 962/A 962M Specification for Common Requirements
purchaser’s permission are not allowed.
for Steel Fasteners or Fastener Materials, or Both, Intended
1.2 Bars from which the nuts are made shall be hot-wrought.
for Use at Any Temperature from Cryogenic to the Creep
The material may be further processed by centerless grinding
5
Range
or by cold drawing. Austenitic stainless steel may be solution
B 633 Specification for Electrodeposited Coatings of Zinc
annealed or annealed and strain-hardened. When annealed and
7
on Iron and Steel
strain hardened austenitic stainless steel is ordered in accor-
B 695 Specification for Coatings of Zinc Mechanically
dance with Supplementary Requirement S1, the purchaser
7
Deposited on Iron and Steel
should take special care to ensure that 7.2.2, Supplementary
B 696 Specification for Coatings of Cadmium Mechanically
Requirement S1, and Appendix X1 are thoroughly understood.
7
Deposited
1.3 Supplementary requirements (S1 through S6) of an
B 766 Specification for Electrodeposited Coatings of Cad-
optional nature are provided. These shall apply only when
7
mium
specified in the inquiry, contract, and order.
E 112 Test Methods for Determining the Average Grain
1.4 This specification is expressed in both inch-pound units
8
Size
and in SI units. However, unless the order specifies the
9
2.2 American National Standards:
applicable“ M” specification designation (SI units), the mate-
B 1.1 Unified Screw Threads
rial shall be furnished to inch-pound units.
B 1.13M Metric Screw Threads
1.5 The values stated in either inch-pound units or SI units
B 18.2.2 Square and Hex Nuts
are to be regarded separately as standard. Within the text, the
B 18.2.4.6M Metric Heavy Hex Nuts
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
3. Terminology
be used independently of the other. Combining values from the
3.1 Definitions of Terms Specific to This Standard:
two systems may result in noncomformance with the specifi-
3.1.1 Austenitic Grades—All grades with a prefix of “8” or
cation.
“9”.
2. Referenced Documents 3.1.2 Ferritic Grades—Grades 1, 2, 2H, 2HM, 3, 4, 6, 6F, 7,
7M, and 16.
2.1 ASTM Standards:
1 3
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Annual Book of ASTM Standards, Vol 01.06.
4
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 01.05.
5
A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Annual Book of ASTM Standards, Vol 01.01.
6
Materials for Piping and Special Purpose Applications. Annual Book of ASTM Standards, Vol 01.03.
7
Current edition approved Dec. 10, 2000. Published February 2001. Originally Annual Book of ASTM Standards, Vol 02.05.
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published as A 194 – 36 T. Last previous edition A 194/A 194M – 00a. Annual Book of ASTM Standards, Vol 03.01.
2 9
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American National Standards Institute, 11 West 42nd St., 13th
cation SA-194 in Section II of that code. Floor, New York, NY 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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A 194/A 194M
3.1.3 Lot: others. Failure to comply with the requirements of Specifica-
3.1.3.1 Unless otherw
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