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31CrMoV9 Alloy Steel Plates W-Nr 1.8519 Round Bar
Describe
31CrMoV9 is a nitrided steel containing at least 2.3% Cr, 0.15% Mo, 0.1% V as strengthening alloying elements. Due to its high wear resistance, it is mainly used in the automotive industry and in mechanical engineering for general components. 30CrMoV9 is difficult to weld, so it should not be used in welded structures. After nitriding, the surface hardness can reach 800 HV.
Size Range
| Round bar / Wire rod (Diameter) | 3.0 mm to 1000 mm |
| Square bar / Flat bar | 3.0 mm to 1000 mm |
| Forging piece | Stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. |
| Heavy/middle plate via hot rolled | T3 - 200 mm X W10 - 1000 mm X L1000-12000 mm |
| Sheet steel via cold rolled: | T5 - 5 mm X W6 - 1000 mm X L1000 - 1000 mm |
| Steel strip via cold rolled: | T5 - 5.0 mm X W5 - 200 mm X L (or in coil form) |
| Length | Fixed length or random length or based on the customer's special requirement. |
Chemical Composition and standard
| Grade | 31CrMoV9/1.8519 |
| Standard | BX S0067-2020 |
| Chemical Composition (weight%) | Cu(％): ≤0.25 Sn(％): ≤0.30 B(％): ≤0.50 |
Mechanical Properties
31CrMoV9 / 1.8519 Alloy Steel Plates Mechanical Properties
| Diameter, d/mm: | 16~40 | 40~100 | 100~160 | 160~250 |
| Tensile strength, Rm/MPa: | 1100~1300 | 1000~1200 | 900~1100 | 850~1050 |
| Yield strength, Rp/MPa: | ≥900 | ≥800 | ≥700 | ≥650 |
| Elongation/%: | ≥9 | ≥10 | ≥11 | ≥12 |
| Reduction of area, ψ/%: | -- | -- | -- | -- |
| Impact, KV/J: | ≥25 | ≥30 | ≥35 | ≥40 |
| Hardness/HB: | 331~380 | 298~359 | 271~331 | 253~319 |
| Hardness After Nitriding/HV | 800 | |||
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