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ASME SA 387 GR 12 Alloy Plates
Built for utilization in hoisted temperature administration, ASME Sa387 Grade 12 is a chrome molybdenum carbon alloy steel for utilization in weldable pressure vessels and modern boilers.
The material advantages from included chromium which gives incredible consumption and oxidation safety making it perfect for harsh administration applications in the oil and gas industry.
Vandan Steel & Engg. co. stocks Sa387 Grade 12 Class 2 and can dispatch to any goal, around the world. All our plates accompany plant confirmation and stampings.
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EQUIVALENTS
| BS | EN | ASTM/ASME | DIN |
|---|---|---|---|
| 620 B | 13 CRMO 45 | SA387-12-2 | 13 CRMO 44 |
SPECIFICATION CHROMIUM & MOLYBDENUM CONTENT ASME SPECIFICATION
| Designation | Nominal Chromium Content (%) |
Nominal Molybdenum Content (%) |
|---|---|---|
| SA387 Grade 12 | 1.00% | 0.50% |
CHEMICAL REQUIREMENTS
| Element | Chemical Composition (%) | |
|---|---|---|
| SA 387 Grade 12 | ||
| Carbon: | Heat Analysis: | 0.05 - 0.17 |
| Product Analysis: | 0.04 - 0.17 | |
| Manganese: | Heat Analysis: | 0.40 - 0.65 |
| Product Analysis: | 0.35 - 0.73 | |
| Phosphorus: | Heat Analysis: | 0.035 |
| Product Analysis: | 0.035 | |
| Sulphur (max): | Heat Analysis: | 0.035 |
| Product Analysis: | 0.035 | |
| Silicon: | Heat Analysis: | 0.15 - 0.40 |
| Product Analysis: | 0.13 - 0.45 | |
| Chromium: | Heat Analysis: | 0.80 - 1.15 |
| Product Analysis: | 0.74 - 1.21 | |
| Molybdenum: | Heat Analysis: | 0.45 - 0.60 |
| Product Analysis: | 0.40 - 0.65 |
TENSILE REQUIREMENTS FOR CLASS 2 PLATES
| Designation: | Requirement: | Grade 12 |
|---|---|---|
| SA387 Grade 12 | Tensile strength, ksi [MPA] | 65 to 85 [450 to 585] |
| Yield strength, min, ksi [MPa]/(0.2% offset) | 40 [275] | |
| Elongation in 8 in. [200mm], min % | 19 | |
| Elongation in 2 in. [50mm], min, % | 22 | |
| Reduction of area, min % | ,. |
Tension Test Requirements: The material shall be tested using a test specimen and will confirm to the tensile requirements as outlined in above table.
Other requirements: The following requirements and testing procedures (which are not mandatory) are considered suitable for Chrome Molybdenum steel:
Vacuum treatment
Product Analysis
Additional Tension Test
Charpy V-Notch Impact Test
Drop Weight Test
High Temperature Tension Test
Ultrasonic Examination
Magnetic Particle Examination
