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DIN931 / 933 Hot Dip Galvanized Railway Bolt 8.8 Grade 45# Steel
Standard:DIN, JIS, ISO, ANSI, ASME, BS, AS
Grade:4.8/ 8.8/ 10.9/ 12.9
Dimensions:M8, M10, M12, M14, M16, M18, M20, M22, M24 and so on
Surface Treatment:Zinc-plated, Plain, Black Anodize, Dacroment
| Grade | 4.6 | 5.6 | 8.8 | 10.9 |
| Material | Q235 | 35# | 45# | 40Cr |
| Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength:≥500Mpa | Tensile strength:≥800Mpa | Tensile strength: ≥1000Mpa |
| Yield strength:≥240Mpa | Yield strength: ≥300Mpa | Yield strength: ≥640Mpa | Yield strength: ≥900Mpa | |
| Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% | |
| Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending:
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