A515 Grade 70 Carbon Steels,Grade 70 Carbon Steel

Posted:2014-11-30 22:25:33

ASTM A515 Grade 70 is a kind of steel plates material used to fabric middle or high temperature pressure vessels. ASTM A515 has three levels : A515 GR 60 (415), A515 GR 65 (450), A515 GR 70 (485) .The alloy involved for the specification is basically similar to AISI 1330 steel.A515 specification covers carbon-silicon steel plates primarily for intermediate and higher temperature service in welded boilers and other pressure vessels projects.A515Gr70 owned tensile strength within 485-620 Mpa,and the minimum yield strength shall be above 260 Mpa.The steel grade A515 Grade 70 contains a higher carbon contains comparing with A515 Grade 60 and A515 Grade 65.

A515 Grade 70 Chemical requirements

Carbon, max	%	Manganese, max	%	Silicon, max	%
25mm or under 25mm - 50mm 50mm- 100mm 100mm- 200mm over 200mm	0.31 0.33 0.35 0.35 0.35	Heat Analysis Product Analysis	1.20 1.30	Heat Analysis Product Analysis	0.15-0.40 0.13-0.45
Phosphorus max	%	Sulfur max	%
All thickness	0.035	All thickness	0.035

Typical Mechanical Values of ASTM A516 Grade 70 / ASME SA516 Grade 70

Properties	Value
Tensile Strength (N/mm2)	510/ 650
Yield stress/ min (N/mm2)	335

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