General requirement
__See requirement in Section 4 of ASTM A6/A6M-17a
__Additional information should be included in material requisition such type of inspection document MTC 3.1 or 3.2, production test, max. carbon equivalent (CE), country of origin, approval vendor list, …
Material and manufacture
__The steel shall be killed.
Chemical composition
__Let check chemical analysis in Table 3 of ASTM A36.
__Note: product analysis tolerance in Table A of ASTM A6.
____Heat analysis: test on casting, another name heat, casing.
____Product analysis: test on production after forming.
____% C and %Mn deviation sees foot note B in Table 3 of ASTM A36.
__Sampling for chemical analysis and methods of analysis shall be in accordance with ASTM A751.
Tension test
__Tensile requirement in Table 2, you should refer to specification and compare with an MTC.
__Remarks the foot note A) B) C) D) E) in Table 2 of ASTM A36 and then refer to ASTM A6 Para. 11 to check the statement in the MTC such orientation of test sample (transverse or longitudinal).
__Test sample should verify in the MTC:
____Position of test sample: top, bottom or middle.
____Tensile test: direction, size and gauge length of sample.
__Minimum number of tension test required, see Table B in ASTM A6.
Quality
__See Para. 9 in ASTM A6: … structural products are normally furnished in the as-rolled condition and are subjected to visual inspection by the manufacturer or processor.
__Refer to product form and delivery condition in purchase order.
Permitted variations and dimensions and weight
__See Para. 12 in ASTM A6.
__Too many fake MTC modified the thickness plate by Suppler, you can find it in the MTC.
Test report
__Test reports for each heat supplied are required, see Para. 14 in ASTM A6, Identification of structural products (markings):
Plate markings
____ASTM designation: ASTM A36/A36M (year-date not required).
____Grade: (not required for A36)
____Heat number: xxxxx
____Size and thickness: 6 x 1254 x 6096 mm
____Name, brand or trademark of manufacturer: logo or tradename (NSSMC)
____Processor: ABC (stocker identification or distributor)
For structural products finished by other than the original manufacturer, the supplier of the structural product shall also provide the purchaser with a copy of the original manufacturer’s test report (Supplier shall certify true copy).
Location markings
__At least one plate of each finished plate or production.
__Other products and required marking, see Para. 18 of ASTM A6.