A537 Class 1 material is a carbon-manganese-silicon steel used for fusion welded pressure vessels and structures.
The steel is a normalized steel which is heat treated and as a consequence displays greater yield and tensile strength than the more standard ASTM A516 grades. A537 Class 1 steel is ideal for use in pressurised service both in boilers and pressure vessels.
Chemical Composition
|
Element |
Thickness |
Composition (%) |
|
Carbon (max) |
|
0.24 |
|
Manganese |
40 mm and under |
0.70 – 1.35 |
|
|
Over 40 mm |
1.00 – 1.60 |
|
Phosphorus (max) |
|
0.035 |
|
Sulphur (max) |
|
0.035 |
|
Silicon |
|
0.15 – 0.50 |
|
Copper (max) |
|
0.35 |
|
Nickel (max) |
|
0.25 |
|
Chromium (max) |
|
0.25 |
|
Molybdenum (max) |
|
0.08 |
For the real product analysis, our mill can take the relative test to guarantee the A537 Class 1 plate quality.
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