Available Shapes
1.8519 Steel
1.8519, 31CrMoV9 steel suppliers and stockholders delivering to the whole of the Middle East.Nifty Alloys LLC are stockholders and suppliers of round bar in this grade which is commonly used in the automotive industry. 1.8519 is a chromium molybdenum vanadium nitriding steel commonly supplied in the quenched and tempered condition.
Analysis
Forging
Normalising
Annealing
Hardening
Tempering
Nitriding
Analysis
| Carbon | 0.27-0.34% | Chromium | 2.30-2.70% |
| Manganese | 0.40-0.70% | Molybdenum | 0.15-0.25% |
| Sulphur | 0.035% max | Silicon | 0.40% max |
| Phosphorous | 0.025% max | Vanadium | 0.10-0.25% |
Forging
Heat slowly, allowing sufficient time for the steel to become heated through. Begin forging at 1050°C. Do not forge below 930°C reheating if necessary. After forging, cool very slowly
Normalising
Heat to 860-900°C. Soak well and allow to cool in the air.
Annealing
Heat uniformly to 680-720°C. Soak well, cool slowly in the furnace. Hardness after annealing is 248 HB max.
Hardening
Heat uniformly to 840-880°C until heated through. Quench in oil or water.
Tempering
Heat carefully to a suitable temperature, selected by reference to a tempering chart or table (usually between 540-680°C). Soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in the air.
Nitriding
Tools machined from pre-hardened 1.8519 may be nitrided to give a wear resistant case of approximately 800 HV surface hardness.
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