ASTM A242 steel plate weathering steel plate

ASTM A242 steel plate introduction: ASTM A242 steel plate is called the weathering steel plate, referred to the semi-killed or fully killed steel. It has good atmospheric corrosion resistance so the steel could be used in a lot of working environments. ASTM A242 steel plate specification is the standard specification for high-strength low- alloy structural steel for structural members where weight savings and atmospheric corrosion resistance are important. Mechanical property requirements are specified by product type (plates and bars, and structural Shapes) and by thickness.

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Steel Properties

ASTM A242 steel plate chemical composition(%):

C max	Mn max	P max	S max	Cu max
0.15	1.00	0.15	0.05	0.20

ASTM A242 steel plate mechanical properties:

Thickness	tensile strength min.	yield strength min.	Elongation in 8 in. min. %	Elongation in 2 in. min. %
20mm below	70 Ksi or 480 Mpa	345 MPa	18	21
20mm to 40mm	67 Ksi or 460 Mpa	315 MPa	18	21
40mm to 100mm	63 Ksi or 435 Mpa	290 MPa	18	21

ASTM A242 steel plate equivalent grades:

Corten	ASTM A588	ASTM A242
Corten A	A588 Grade A	A242 Type 1 steel

Application

ASTM A242 steel plate application:
ASTM A242 steel plate high-strength low-alloy structural steel plates are for welded, riveted, or bolted construction intended primarily for use as structural members where savings in weight [mass] or added durability are important. The atmospheric corrosion resistance of the steel in most environments is substantially better than that of carbon structural steels with or without copper addition. This specification is limited to ASTM A242 steel plate Type1 material up to 4 in. [100 mm], inclusive, in thickness.

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