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What do A387 grade 5 class 2 materials mean
Posted:2020-12-21 16:05:19
A387 grade 5 class 2 materials are high quality chromium-molybdenum alloy steel. They are ideal for use in pressure vessels and industrial boilers due to the excellent heat resistant and anti corrosion properties. A387 grade 5 class 2 materials are used in a number of applications and industries.
Chemical composition of A387 grade 5 class 2 materials:
| Grade | C | Mn | P | S | Si | Cr | Mo | Others |
| A387 grade 5 class 2 | ≤0.15 | 0.25-0.66 | 0.025 | 0.025 | ≤0.55 | 3.90-6.10 | 0.40-0.70 | - |
Mechanical property of A387 grade 5 class 2 materials:
| Grade | Tensile Strength | Yield Strength | Elongation in 2 inches |
| (Mpa) min. | (MPa) min. | (%) max. | |
| A387 grade 5 class 2 | 515-690 | 310 | 18 |
The two key alloying elements of A387 grade 5 class 2 materials are Molybdenum (Mo) and Chromium (Cr). A387 grade 5 class 2 materials are typically applied in the temperature range from 316℃ to 593℃.
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