CarbonStructural Steel StandardSpecificationfor
This standrd is issed under the fixed designatio A36/A36M; the mmber immodiately followring the designation indisates the year of original adoption or in the case of revision the year of last revisin. A number in parentheses inicates the year of last reaproval. A superscript epsiloe (e) indicates an editoeial change since the last revision or reaproval.
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1. Scope*
2.Referenced Documents
and bars of structural quality for use in riveted bolted or 1.1This specification covers carbon stee shapes plates structural purposes. welded construction of bridges and buildings and for general
2.1 ASTM Standards:3
A6/A6M Specification for General Requirements for RolledA27/A27M Specification for Steel Castings. Carbon for Structural Steel Bars Plates Shapes and Sheet PilingGeneral ApplicationA307 Specification for Carbon Steel Bolts Studs and Threaded Rod 60 000 PSI Tensile StrengthA325 Specification for Structural Bolts Steel Heat Treated 120/105 ksi Minimum Tensile StrengthA325M Specification for Structural Bolts. Steel. Heat Treated 830 MPa Minimum Tensile Strength (Metric)A500 Specification for Cold-Formed Welded and SeamlessA501 Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and ShapesA502 Specification for Rivets Steel Structural Carbon Steel Structural TubingA563 Specification for Carbon and Alloy Steel Nuts A563M Specification for Carbon and Alloy Steel Nuts (Met-ric)A668/A668M Specification for Steel Forgings Carbon and Alloy for General Industrial UseA1011/A1011M Specifieation for Steel. Sheet and Strip Hot-Rolled Carbon. Structural. High-Strength Low-Alloy.High-Strength Low-Alloy Formability. and Ultra-High Strength with ImprovedA1018/A1018M Specificeation for Steel Sheet and Strip.Heavy-Thickness Commercial Drawing Structural High-Strength Low- Coils Hot-Rolled Carbon Alloy. High-Strength Low-Alloy Formability and Ultra-High Strength with ImprovedF568M Specification for Carbon and Alloy Steel Extemally
1.2 Supplementary requirements are provided for use whereaditional testing or additional restrictions are required by the purchaser. Such requirements apply only when specified in thepurchase order.
suitable for the grade of steel and intended use or service is to 1.3 When the steel is to be welded a welding procedurebe utilized. See Appendix X3 of Specification A6/A6M for information on weldability.
1.4 The values stated in either inch-pound units or SI unitsSI units are shown in brackets. The values stated in each are to be regarded separately as standard. Within the text thesystem are not exact equivalents; therefore each system is tobe used independently of the other without bining values in any way.
or both that provide explanatory material. Such notes and 1.5 The text of this specification contains notes or footnotes footnotes excluding those in tables and figures do not containany mandatory requirements.
1.6 For structural products produced from coil and fur-nished without heat treatment or with stress relieving only thements and the reporting of additional test results of A6/A6M additional requirements including additional testing require-apply.
TABLE 1 Appurtenant Material Specifications
No 1The specifier should be satisfied of the suitability of thesematerials for the intended application. Chemical position or mechani- cal properties or both may be different than specified in A36/A36M.
Steel rivets Material A502 Grade 1 ASTM DesignationBolts High-strength bols A307 Grade A or F568M Class 4.6 A325 or A325MSteel nuts Cast stee Forgings (carbon stel) A27/A27M Grade 6535 [450240] A563 or A563MHot-rolled sheets and strip A1011/A1011M SS Grade 36 [250] Type 1 or Type 2 or A1018/A1018M SS Grade A668/A668M Class DCold-formed tubing 36 [250] A500 Grade BHot-fommed tubing Anchor bolts A501 F1554 Grade 36
F1554 Specification for Anchor Bolts Steel 36 55 and Threaded Metric Fasteners (Metric) (Withdrawn 2012) 105-ksi Yield Strength
3. Appurtenant Materials
3.1 When ponents of a steel structure are identified withthis ASTM designation but the product form is not listed in the scope of this specification the material shall conform to one ofpurchaser. the standards listed in Table I unless otherwise specified by the
4. General Requirements for Delivery
4.1 Structural products furnished under this specificationSpecification A6/A6M for the specific structural product shall conform to the requirements of the current edition ofordered unless a conflict exists in which case this specificationshall prevail.
4.2 Coils are excluded from qualification to this specifica-pord pennns pouuy e o pssd ae o un uoStructural products produced from coil means structural prod- ucts that have been cut to individual lengths from a coil. Theprocessor directly controls or is responsible for the operations involved in the processing of a coil into a finished structuralproduct. Such operations include decoiling. leveling or straightening hot-forming or cold-forming (if applicable) cutting to length testing inspection conditioning heat treat-ment (if applicable) packaging marking loading for shipment and certification.
Nom 1For structural peoducts produced from coil and fumishedbe reported for each qualifying coil. Additional requirements regarding o ae ssau isan oms o uaanan ssans qsn no sen maq om structural products produced from coil are described in SpecificationA6/A6M
5. Bearing Plates
6. Materials and Manufacture
6.1 The steel shall be killed
7. Chemical Composition
8. Tension Test
9. Keywords
5.1Unless otherwise specified plates used as bearing platesfor bridges shall be subjected to mechanical tests and shall conform to the tensile requirements of Section 8.
5.2 Unless otherwise specified mechanical tests shall not bebearing plates in structures other than bridges subject to the required for plates over 1/ in. [40 mm] in thickness used asrequirement that they shall contain 0.20 to 0.33 % carbon by heat analysis that the chemical position shall conform tothe requirements ofTable 3 in phosphorus and sulfur content and that a sufficient discard shall be made to secure soundplates.
7.1 The heat analysis shall conform to the requirements prescribed in Table 3 except as specified in 5.2.
7.2 The steel shall conform on product analysis to therequirements prescribed in Table 3 subject to the productanalysis tolerances in Specification A6/A6M.
8.1The material as represented by the test specimen exceptto the tensile properties prescribed in Table 2. as specified in 5.2 and 8.2 shall conform to the requirements as
8.2 Shapes less than 1 in.²[645 mm² in cross section andbars other than flats less than in. [12.5 mm] in thickness or diameter need not be subjected to tension tests by theappropriate for obtaining the tensile properties in Table 2. manufacturer provided that the chemical position used is
9.1 bars; bolted construction; bridges: buildings; carbon; welded construction plates; riveted construction; shapes; steel; structural steel;
TABLE 2 Tenslle Requlrements^
Plates Shapes ° and Bars: Tensile strength ksi [MPa] 5880 [400550]Plates and Bars:C E Elongatlion in 8 in. [200 mm] min % Yield point min ksi [MPa] 20 36 [250]°Shapes: Elongation in 2 in. [50 mm] min % 23Elongation in 8 in. [200 mm] min % Elongafion in 2 in. [50 mm] min % 20 21°
^ See the Orientatfion subsection in the Tension Tests section of Speciicafion A6/A6M.Forwide fange shapes wthfange hickness over 3 in [75 mm] the 80 kl [550 MPa] maximum tensie strength does not spply and a minimum elongation in 2 in.Yield poit 32 ksi [220 MPa] for plstes over 8 in. [200 mm] in thicknes8. Elongation nct required to be detemined forfoor plate. [50 mm] of 19 % applies. For plates wider then 24in. [600 mm]. the elongation requirememt is reduced two percentage points. See the Elongation Requirement Adjustments subsectionunder the Tension Tests section of Specification A6/A6M.
TABLE 3 Chemical Requirements
pup se pda pe poup qs u ssee q q ub ou s a qm s u smdd a1 in the heat analysis section of Specification A6/A6M.
Product Shapes Plates > 15-in. [380 mm] Widh Bars; Plates ≤ 15-in. [380 mm] WidthThickness in. [mm] %01 Over % to 1% Over 1 to 2% Over 2 to 4 Over4 To %6 Over % to 1% Over 1 to 4 Over 4AI [20] inel [20 to 40] inel [40 to 65] inol [65 to 100] inel [00] [20] (ou [20 to 40] inel [100] incl [00]Carbon max % Manganese % 0.26 0.25 0.801.20 0.25 0.801.20 0.26 0.27 0.851.20 0.851.20 0.29 920 100 0.600.90 0.27 0.600.90 0.28 0.600.90 0.29Sulfur max % Phosphorus max % Silicon % 0.40 max 0.04 0.05 0.40 max 0.030 0.030 0.030 0.030 0.40 0.030 0.030 0.150.40 0.030 0.030 0.150.40 0.030 0.030 0.150.40 0.40 max 0.06 0.04 0.05 0.04 0.05 0.40 max 0.04 0.06 0.40 maxcop _per steel is specified Copper min % when 0.20 0.20 0.20 max 0.20 0.20 0.20 0.20 0.20 0.40 max 0.20 0.20
Mangant f0851.35%andif.150.40% d f w i75] Forahrn.rntagpinpid manieagpiagaesbe be permited up to the maximum of 1.36 %.
SUPPLEMENTARY REQUIREMENTS
These requirements shall not apply unless specified in the order.
Standardized supplementary requirements for use at the option of the purchaser are listed inSpecification A6/A6M. Those that are considered suitable for use with this specification are listed by title:
S5. Charpy V-Notch Impact Test.
S30. Charpy V-Notch Impaet Test for Structural Shapes:Alternate Core Location
S32. Single Heat Bundles
single heat of steel. S32.1 Bundles containing shapes or bars shall be from a
SUMMARY OF CHANGES
(A36/A36M 12) that may impact the use of this standard (Approved Dec. 1 2014.)
plate products greater than 15 in. [380 mm] in width. (7) Revised Table 3 to modify phosphorus and sulfur limits for
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