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ASTM A537 Class 1 steel plate is carbon manganese silicon steel for fusion welded pressure vessels and structures. ASTM A537 Class 1 steel has good mechanical properties. For ASTM A537 Class 1 steel plate thickness equal and under 65mm, A537 Class 1 steel min. yield strength is 345 Mpa, and there is different min strength point at different thickness. The tensile strength of ASTM A537 Class 1 steel is 485-620 Mpa.
ASTM A537 Class 1 properties:
| Grade | Yield Strength Ksi(N/mm2) |
Tensile Strength Ksi(N/mm2) |
Elongation | |
| Test piece in(mm) | %.min | |||
| A537 Class 1 | 50 (345)min | 70-90 (485-620) | GL=8 (200) GL=2 (50) |
18 22 |
ASTM A537 Class 1 steel is mainly used to fabricate boiler and pressure vessels. ASTM A537 Class 1 steel plate need normalized heat treatment. Ultrasonic examination is necessary technical requirement when rolling ASTM A537 Class 1 steel plate, the end users can choose test standard from ASTM A435/A435M, ASTM A577/A577M and ASTM A578/A578M.
