ASTM A575-96(2002)

Standard Specification for Steel Bars, Carbon, Merchant Quality, M-Grades

SCOPE
1.1 This specification covers hot-wrought merchant quality carbon steel bars produced to a chemical composition. Merchant quality bars are used for structural and similar miscellaneous bar applications involving moderate cold bending, moderate hot forming, punching, and welding as used in the production of noncritical parts. Moderate cold bending involves a generous bend radius with the axis of the bend transverse to the direction of rolling.
1.2 Special quality hot-wrought carbon steel bars are covered in Specification A 576.
1.3 Some end uses may require one or more of the available designations shown under Supplementary Requirements.
1.4 The values stated in inch-pound units are to be regarded as the standard.

General Information

• Status: Historical
• Publication Date: 09-Nov-1996
• ICS: 77.140.60 - Steel bars and rods
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.15 - Bars

Relations

• Replaces: ASTM A575-96 - Standard Specification for Steel Bars, Carbon, Merchant Quality, M-Grades
• Effective Date: 10-Nov-1996
• Replaced By: ASTM A575-96(2007) - Standard Specification for Steel Bars, Carbon, Merchant Quality, M-Grades
• Effective Date: 01-Sep-2007
• Referred By: ASTM C361-22 - Standard Specification for Reinforced Concrete Low-Head Pressure Pipe
• Effective Date: 10-Nov-1996
• Referred By: ASTM A29/A29M-23 - Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
• Effective Date: 10-Nov-1996
• Referred By: ASTM A576-17 - Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality
• Effective Date: 10-Nov-1996
• Referred By: ASTM F1144-19 - Standard Specification for Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and Watertight, Hinged
• Effective Date: 10-Nov-1996
• Referred By: ASTM F783-88(2023) - Standard Specification for Staple, Handgrab, Handle, and Stirrup Rung
• Effective Date: 10-Nov-1996
• Referred By: ASTM C361M-22 - Standard Specification for Reinforced Concrete Low-Head Pressure Pipe (Metric)
• Effective Date: 10-Nov-1996

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A 575 – 96 (Reapproved 2002)
Standard Specification for
Steel Bars, Carbon, Merchant Quality, M-Grades
This standard is issued under the fixed designation A 575; 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 5. Conditions
5.1 Merchant quality bars are available in rounds, squares,
1.1 This specification covers hot-wrought merchant quality
carbon steel bars produced to a chemical composition. Mer- round cornered squares, hexagons, and bar size shapes under 3
chant quality bars are used for structural and similar miscella- in. (76.2 mm), and in flats less than 40.8 lb/ft (60.7 kg/m).
neous bar applications involving moderate cold bending, mod- Hot-wrought merchant quality carbon steel bars are produced
erate hot forming, punching, and welding as used in the in cut lengths and coils; the producer should be consulted
production of noncritical parts. Moderate cold bending in- regarding sections and sizes available in coils.
volves a generous bend radius with the axis of the bend 5.2 Merchant quality is available within a composition of
transverse to the direction of rolling. 0.50 % maximum carbon, 0.60 % maximum manganese, non-
1.2 Special quality hot-wrought carbon steel bars are cov- resulfurized, non-leaded. The phosphorus content is 0.04 %,
ered in Specification A 576. max, and the sulfur content is 0.05 %, max. Merchant quality
1.3 Some end uses may require one or more of the available grades of steel are shown in Table 1 and chemical ranges and
designations shown under Supplementary Requirements.
1.4 The values stated in inch-pound units are to be regarded
TABLE 1 Grade Designations and Chemical Compositions of
as the standard.
Hot-Wrought Merchant Quality M Series Carbon Steel Bars
A
Grade Carbon, Manganese, Phosphorus, Sulfur,
2. Referenced Documents
Designation % % max, max, %
%
2.1 ASTM Standards:
M 1008 0.10 max 0.25–0.60 0.04 0.05
A 29/A 29M SpecificationforSteelBars,CarbonandAlloy,
M 1010 0.07–0.14 0.25–0.60 0.04 0.05
Hot-Wrought and Cold-Finished, General Requirements
M 1012 0.09–0.16 0.25–0.60 0.04 0.05
for
M 1015 0.12–0.19 0.25–0.60 0.04 0.05
A 576 Specification for Steel Bars, Carbon, Hot Wrought, M 1017 0.14–0.21 0.25–0.60 0.04 0.05
2 M 1020 0.17–0.24 0.25–0.60 0.04 0.05
Special Quality
M 1023 0.19–0.27 0.25–0.60 0.04 0.05
M 1025 0.20–0.30 0.25–0.60 0.04 0.05
3. Ordering Information
M 1031 0.26–0.36 0.25–0.60 0.04 0.05
M 1044 0.40–0.50 0.25–0.60 0.04 0.05
3.1 Orders under this specification should include the fol-
A
Unless prohibited by the purchaser, the manganese content shall be permitted
lowing as required to describe adequately the desired material:
to exceed 0.60 % on heat analysis to a maximum of 0.75 %, provided that the
3.1.1 ASTM specification number and date of issue,
carbon range on heat analysis has the minimum reduced by 0.01 % for each
3.1.2 Grade designation or chemical composition (Section 7
0.05 % manganese over 0.60 %.
and appropriate chemical analysis tables),
3.1.3 Supplementary Requirements or additions, if required,
limits in Table 2; the grade numbers are designated with the
3.1.4 Dimensions and quantity, and
prefix “M.” Merchant quality bars are not produced to any
3.1.5 End use and processing.
specified silicon content, grain size, or other requirement that
would influence the type of steel.
4. Materials and Manufacture
5.3 Merchant quality bars shall
...