AISI 6150 Spring Steel

AISI 6150 spring steel suppliers. AISI 6150 is a chromium vanadium type spring steel supplied in the as rolled condition with delivery to the whole of the UK. This grade is suitable for oil hardening and tempering. and when used in the oil hardened and tempered condition AISI 6150 spring steel combines spring characteristics with good wear and abrasion resistance. Hardened 6150 offers excellent toughness and shock resistance which make it a suitable alloy spring steel for parts exposed to stress, vibration and shock.

We welcome export enquiries for AISI 6150 spring steel. Contact our sales office and consult our shipping policy for further details.

Alternative spring steel grades we supply

CS70 | CS80 | CS95 | CS100 | EN42 | EN43 | EN45 | EN47 | 735A50 | 301 | 75Cr1

Form of Supply

Suppliers of AISI 6150 round bar we can offer diameters which can be sawn to your required lengths as 1 offs or multiple cut pieces. Ground steel bar can be supplied, providing a high quality precision ground spring steel bar to your required tolerances.

Click here to contact our experienced sales team who will assist you with your AISI 6150 spring steel enquiry.

  • Diameter

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Used widely in the motor vehicle industry AISI 6150 is suitable for many general engineering applications that require high tensile strength and toughness. Typical applications include crankshafts, steering knuckles, spindles, pumps and gears.

Carbon 0.48-0.53% Silicon 0.15-0.35%
Manganese 0.70-0.90% Phosphorous 0.035% max
Chromium 0.80-1.10% Sulphur 0.040% max
Vanadium 0.15% min

Preheat carefully, then raise temperature to 1050°C for forging. Do not forge below 840°C. After forging cool slowly in a furnace.

Heat slowly to 820-840°C, soak well and cool slowly in a furnace.

Heat slowly to 650-700°C and thoroughly soak. Continue to heat the 6150 steel to the final hardening temperature of 830-860°C and allow to be heated through. Oil quench.

Temper 6150 spring steel immediately after hardening whilst tools are still hand warm. Re-heat to the tempering temperature then soak for one hour per 25 millimetre of total thickness (2 hours minimum) Cool in air. Tempering of this grade will be between 400-600°C for most applications.

Heat treatment temperatures, including rate of heating, cooling and soaking times etc. will vary due to factors such as the shape and size of each component. Other considerations during heat treatment include the type of furnace, quenching medium and work piece transfer facilities. Please consult a heat treatment provider for full guidance on heat treatment of 6150.

We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding AISI 6150 chrome vanadium spring steel.

AISI 6150 is a chrome vanadium grade commonly supplied as rolled and available with cast and analysis certification, please request when placing any orders.

AISI 6150 spring steel is supplied in accordance with our ISO 9001:2015 registration.