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Chemical Requirement of B7 B7M B16 (A193/A193M)
B7 , B7M , B16
Type |
Ferritic Steels |
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Grade |
B7,B7M |
B16 |
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Description |
Chromium - Molybdenum |
Chromium - Molybdenum -Vanadium |
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Range |
Product Variation,Over or Under |
Range |
Product Variation,Over or Under |
|
Carbon |
0.37-0.49 |
0.02 |
0.36-0.47 |
0.02 |
Manganese, max |
0.65-1.10 |
0.04 |
0.45-0.70 |
0.03 |
Phosphorus, max |
0.035 |
0.005 over |
0.035 |
0.005 over |
Sulfur, max |
0.040 |
0.005 over |
0.040 |
0.005 over |
silicon |
0.15-0.35 |
0.02 |
0.15-0.35 |
0.02 |
Chromium |
0.75-1.20 |
0.05 |
0.80-1.15 |
0.05 |
Molybdenum |
0.15-0.25 |
0.02 |
0.50-0.65 |
0.03 |
Vanadium |
- |
- |
0.25-0.35 |
0.03 |
Aluminum, max % |
- |
- |
0.015 |
- |