ASTM A537 CL3 steel plate/sheet,ASTM A537 CL3 steel plate/sheet, under ASTM standard, we can regard A537 CL3 steel plate/sheet for simple pressure vessels steel.
A537 Class 3 steel plates are engineered to be used in pressure vessel applications.Steel plate A 537 CL3 is a quenched and tempered steel material, the same with A 537 CL2 in heat treatment.Although the A 537 CL3 only yields strength lower than A 573 CL2, the two grade have a little different in price. A 537 cl3 quenched and tempered temperature is 620, and A 537 cl2 is 595.
A537 Class3 chemical composition
| Grade | C | Si | Mn | P | S | Cu | Ni | Cr | Mo |
| A537CL3 | 0.24 | 0.13- 0.55 |
0.64- 1.46 |
0.035 | 0.035 | 0.38 | 0.28 | 0.29 | 0.09 |
A537 Class3 mechanical properties
| Grade | Thickness (mm) |
Yield strength Min [MPa] |
Tensile strength [MPa] |
Elongation [%] |
| A537Cl3 | 8-65 | 380 | 550-690 | 22 |
| 66-100 | 345 | 515-655 | 22 | |
| 101-150 | 275 | 485-620 | 20 |
A537 CL3 is under the ASTM standard. There is another material, SA537CL3. SA537CL3 steel is the steel grade in ASME standard. ASME SA573 CLASS 3 steel is also used in pressure vessels. ASME SA537 CL 3 delivery condition is Q&T, means Quenching and Tempering .
we also can supply A537 CL1,A537CL2,if you are interested in our products ,please contact us.
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