FV520B Stainless Steel

FV520B stainless steel stockholders and suppliers, delivering to the whole of the U.K. FV520B is a precipitation hardening stainless steel with excellent anti galling characteristics supplied as round bar available for delivery to the whole of the UK. FV520B offers good corrosion resistance, weldability and is capable of being hardened by low temperature treatment. It has better resistance to intergranular and pitting corrosion that other precipitation hardening grades such as 17/4PH stainless. With corrosion resistance comparable to 304 stainless it is often used in industry and marine environments where rusting rate is low.

Related Specifications

1.4594 X5CrNiMoCuNb14 5 PH Firth Vickers Silver Fox 520B

Alternative stainless grades we supply

17/4PH | S31254 | 904L | 310 | 316 | 321 | 440B | 440C | 420 | 410 | 416 | 431 | S31803 | S32760

Form of Supply

West Yorkshire Steel are suppliers and stockholders of round bar in diameters. FV520B ground steel bar can be supplied, providing a high quality stainless precision ground bar to your required tolerances.

Click here to contact our experienced sales team who will assist you with your FV520B stainless steel enquiry.

Supply Condition
FV520B Double Overaged 750-550º C
FV520B Primary Hardened Condition

  • Diameter

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Typical applications include pump shafts, impellers, fasteners, fans, valves, hydraulic equipment used in oil and gas industries, petrochemical, marine and nuclear engineering, and aircraft components such as steam turbine blades.

Carbon 0.07% max Chromium 13.20-14.70%
Manganese 1.00% max Nickel 5.00-6.00%
Silicon 0.70% max Molybdenum 1.20-2.00%
Phosphorous 0.035% max Niobium 0.20-0.70%
Sulphur 0.025% max Copper 1.20-2.00%

FV520B has useful corrosion resistance in modest corrosion environments having similar characteristics to that of austenitic stainless steel grades. It has useful resistance to some acid conditions and has low rusting rate in marine and industrial atmospheres.

FV520B has good weldability characteristics when using standard techniques. Oxy-acetylene welding is not recommended due to the possible pick up of carbon. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding FV520B stainless steel.

Supply Condition 0.2% Proof
Primary Hardened
1050º C +2 hours 750-850ºC
Double Overaged
1050º C +2 hours 750-850ºC
+2 hours 550ºC
800 925-1090 15 277-341 54

*rolled bar – longitudinal

Density 7.80 Kg/dm
Magnetisable Yes

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each steel 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 FV520B stainless steel.

Stainless steel grade FV520B is available with BS EN 10204 3.1 mill certificate, please request when placing any orders.

FV520B stainless is supplied in accordance with our ISO 9001:2015 registration.