ASME SA572 Gr. 55/ SA572 Grade 55 low alloy steel plates are American standard high tensile strength Ni-V steel. SA572 Gr. 55/ SA572 Grade 55 low alloy steel plates are mainly used in engineering structures, such as construction structure, construction machinery, mining machinery, heavy trucks and pressure vessels, etc..
ASME SA572 Gr. 55/ SA572 Grade 55 low alloy steel plates chemical composition:
| Grade | C max | Mn max | P max | S max | Si max |
| SA572 Gr.55 | 0.25 | 1.35 | 0.04 | 0.05 | 0.4 |
ASME SA572 Gr. 55/ SA572 Grade 55 low alloy steel plates mechanical property:
| Grade | Yield Strength Mpa | Tensile Strength Mpa | Elongation % in 200mm | Elongation % in 50mm |
| SA572 Gr.55 | 380 | 485 | 17 | 20 |
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