NC40SW Through hardening steels
Spécifications
- Common name
300M
- EU
40NiSiCrMo7
- USA
UNS:K44220
Typical composition
- C
0,4
- Ni
1,8
- Cr
0,85
- Mo
0,4
- Si
1,6
Applications
• Shafts.
• Gears.
• Various mechanical parts.
• Heavily stressed aerospace parts.
Mechanical properties
• Melting: consumable electrode remelted steel.
• High mechanical properties.
• Good resistance to impact and fatigue.
• Maintains good properties at high temperatures.
Mechanical features
| Heat treatment | UTS (N/mm²) | A (%) | KCU (J/cm²) |
|---|---|---|---|
| T + Rv 600°C | 1450 | 14 | 60 |
| T + 2xRv 300°C | 2050 | 12 | 50 |
- Solution treated : H
Annealed : R - Thermo-mechanical treatment : TM
Quenched and tempered : T+RV - Sub-zero treatment : F
Solution treated and aged : T+RV
NC40SW_GB
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See also
819AW
Through hardening steels
- Gun barrels
- Missiles
- Plastic
- Polishing
- Transmission system
Spécifications
- EU : 35NiCrMo16
- USA : UNS : K57034
Heat treatment
- T + F + Rv 200°C
- T + Rv 650°C
Read more
MLX19
Stainless steels with structural hardening
- Aero engine
- Blades
- Chassis
- Fasteners
- Land turbine
- Landing gear
- Missiles
- tubes
Spécifications
- EU : X1NiCrMoAlTi12-10-2
- USA : UNS:S11902
Heat treatment
- H + V 490°C
- H + V 510°C
Read more
MLX19
Stainless maraging steels
- Aero engine
- Blades
- Chassis
- Fasteners
- Land turbine
- Landing gear
- Missiles
- tubes
Spécifications
- EU : X1NiCrMoAlTi12-10-2
- USA : UNS:S11902
Heat treatment
- H + V 490°C
- H + V 510°C
Read more