Suppliers of round bar we can offer diameters in EN47 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 tight tolerances.

EN47 is used widely in the motor vehicle industry and many general engineering applications. Suitable for applications that require high tensile strength and toughness. Typical applications include crankshafts, steering knuckles, gears, spindles and pumps.

Preheat the steel carefully, then raise temperature to 1050°C for forging. Do not forge below 840°C. After forging EN47 spring steel cool slowly, preferably in a furnace.

Heat slowly to 820-840°C, soak well. Cool slowly in the furnace.

Heat slowly to 650-700°C and thoroughly soak. Continue to heat the steel to the final hardening temperature of 830-860°C and allow the component to be heated through. Quench in oil.

Temper the EN47 spring steel component immediately after quenching 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. For most applications tempering of this grade will be between 400-600°C.

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 the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of EN47.

We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding EN47 chrome vanadium spring steel.

Spring steel EN47 is a chrome vanadium grade commonly supplied as rolled and available with cast and analysis certification, please request when placing any orders.

EN47 spring steel is supplied in accordance with our ISO 9001 : 2008 registration.

YAOTENG Steel are S235JR stockholders and suppliers of flame cut plate, round bar and flat bar. The steel can be supplied to your required sizes as one offs or multiple cut pieces. Plates can also be Lumsden ground to size on thickness.

Contact our experienced sales team who will assist you with your S235JR carbon steel enquiry.

S235JR is a very popular low carbon steel grade suitable for numerous general engineering and structural applications. Supplied as a hot rolled non alloy steel it is used widely in the construction, maintenance and manufacturing industries.

S235JR steel profiles are available as multiple or one off pieces. Flame cut steel blanks can be supplied surface ground and edge machined to your requirements. All flame cut steel pieces are dressed before final inspection and despatch. If you have any special requirements please inform our sales staff when you enquire for flame cut steel profiles.

Surface grinding and edge grinding is available on all flame cut steel components. This is carried out on Lumsden grinding rotary reciprocating table machines. After flame cutting pieces can be ground to clean up or blanks can be Lumsden ground to size on thickness to an tolerance of +/-0.25mm. A tighter tolerance may be possible, please provide your required tolerances to our sales team when enquiring.

As a hot rolled non alloy steel the main characterisitics of S235JR are its mechanical properties, such as the tensile strength and yield strength. 

(*as rolled - 16mm plate)

S235JR is not ideally suited to hardening, though it can be subjected to limited heat treatment process such as case hardening. When hardening S235JR heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of S235JR carbon steel.

S235JR steel is commonly available with a 3.1b mill certificate, cast and analysis certificate or a certificate of conformity, please request when placing any orders. 

S235JR steel is supplied in accordance with our ISO 9001 : 2008 registration.