Fully Automated and Controlled Micromeritics Flow Reactor (FR) Series for Catalyst Screening in the Laboratory
Sophisticated System for Measuring Catalytic Performance The standard unit is customizable for va……...
Chrome Molybdenum Steel – ASTM A387 Grade 22 Class 2
The A387 Grade 22 Class 2 – a grade of chromium-molybdenum alloy – is mainly intended for use in pressure vessels and welded boilers, which are designed for use in elevated temperature service.
This steel grade has excellent heat resistance and anti corrosive/oxidation qualities, and is perfect for using in the oil, gas and chemical industry.
Equivalents
| BS | EN | ASTM/ASME | DIN |
|---|---|---|---|
| 622-515B | 10CrMo910 | A/SA387-22-2 | 10CrMo910 |
Chromium & Molybdenum content (according to the ASTM specification):
| Designation | Nominal Chromium Content (%) | Nominal Molybdenum Content (%) |
|---|---|---|
| A387 Grade 22 | 2.25% | 1.00% |
Tensile Requirements for Class 2 Plates
| Designation | Requirement | Grade 22 |
|---|---|---|
| A387 Grade 22 | Tensile strength, ksi [MPA] | 75 to 100 [515 to 690] |
| Yield strength, min, ksi [MPa]/(0.2% offset) | 45 [310] | |
| Elongation in 8 in. [200 mm], min % | ||
| Elongation in 2 in. [50 mm], min, % | 18 | |
| Reduction of area, min % | 45 (measured on round specimen)40 (measured on flat specimen) |
Chemical Requirements
| . | . |
|---|---|
| Carbon (C) | % |
| Heat Analysis:Product Analysis: | 0.05 - 0.150.04 - 0.15 |
| Manganese (Mn) | % |
| Heat Analysis:Product Analysis: | 0.30 - 0.600.25 - 0.66 |
| Phosphorus (P) | % |
| Heat Analysis:Product Analysis: | 0.0350.035 |
| Sulphur (S) (Max) | % |
| Heat Analysis:Product Analysis: | 0.0350.035 |
| Silicon (Si) | % |
| Heat Analysis:Product Analysis: | 0.50 max0.50 max |
| Chromium (Cr) | % |
| Heat Analysis:Product Analysis: | 2.00 - 2.501.88 - 2.62 |
| Molybdenum (Mo) | % |
| Heat Analysis:Product Analysis: | 0.90 - 1.100.85 - 1.15 |
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