JIS G3101 SS490 Chemistry, Equivalency and Weldability
JIS G3101 SS490 Chemistry, Equivalency and Weldability
(OP)
I am evaluating JIS G3101 grade SS490 as a substitute for ASTM A36 as proposed by a potential supplier. I am interested in the chemical make-up and strength characteristics with my main processing concern being weldability. While it would seem that finding an equivalent for A36 should be simple, I have not dealt much with foreign steel equivalents before and am having difficulty with the information I am seeing.
I have bits and pieces of the JIS spec (as supplied by the vendor) that seems to point to ASTM A36 as a direct equivalent. I have attempted to find further information on this but there seems to be some inconsistencies. While some links/tables have pointed to A36, others have pointed to A572 gr. 50; A633 gr. A,C,D; A656 gr. 50. While I believe all of these to be readily welded, the inconsistency makes me uncomfortable.
Also, the JIS spec lists SS490 as having no maximum requirement for Carbon or Manganese. Am I reading this correctly? How can you NOT have a Carbon maximum requirement?
Is SS490 the correct material or is there a better Japanese equivalent?
Can someone please help me understand what I am looking at and provide some direction!
THANK YOU!
I have bits and pieces of the JIS spec (as supplied by the vendor) that seems to point to ASTM A36 as a direct equivalent. I have attempted to find further information on this but there seems to be some inconsistencies. While some links/tables have pointed to A36, others have pointed to A572 gr. 50; A633 gr. A,C,D; A656 gr. 50. While I believe all of these to be readily welded, the inconsistency makes me uncomfortable.
Also, the JIS spec lists SS490 as having no maximum requirement for Carbon or Manganese. Am I reading this correctly? How can you NOT have a Carbon maximum requirement?
Is SS490 the correct material or is there a better Japanese equivalent?
Can someone please help me understand what I am looking at and provide some direction!
THANK YOU!





RE: JIS G3101 SS490 Chemistry, Equivalency and Weldability
RE: JIS G3101 SS490 Chemistry, Equivalency and Weldability
Thanks for the info! Can you recommend a good link or reference book for foreign metal equivalents?
RE: JIS G3101 SS490 Chemistry, Equivalency and Weldability
JIS G3106 is rolled steel for welded structure.This one has limits on C and Mn.
Many vendors use however G3101 for welded constuctions , but than they add limits on C and Mn content on the Mill Certificates
RE: JIS G3101 SS490 Chemistry, Equivalency and Weldability
I highly recommend the two references mentioned in the following thread:
Thread177-59325
RE: JIS G3101 SS490 Chemistry, Equivalency and Weldability
TVP - Thanks for the recommendation. I had actually already ordered the Worldwide Guide to Equivalent Irons and Steels, but I feel better about spending the money now that I have a strong recommendation.