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304 Stainless Steel

304, 304L stainless steel stockholders and suppliers. 304 is a chromium nickel austenitic stainless which is suitable for use in corrosive conditions available with delivery to the whole of the UK. A very popular 18/8 grade of stainless widely used in many industry sectors. The 304L grade has a reduced carbon content to improve corrosion resistance after welding.

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

Related Specifications

1.4307 1.4301 BS EN 10088-3 X5CrNi18-10 X2CrNi18-9 AISI ASTM

Alternative stainless grades we supply

17/4PH | FV520B | S31254 | 904L | 310 | 321 | 440B | 440C | 420 | 410 | 416 | 431 | S31803 | S32760

Form of Supply

West Yorkshire Steel are suppliers and stockholders of round bar, plate and sheet. Sawn blanks can be supplied cut to your requirements as one offs or multiple cut pieces. 304 ground bar can be supplied, providing a high quality precision ground bar to close tolerances. this grade is available in plate which can be supplied as plasma cut pieces and sheet which can be supplied guillotined to size.

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  • Sheet
  • Plate
  • Diameter

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Applications

Used widely in industries such as food, construction, automotive and petrochemical. Typical applications are exhaust manifolds, heat exchangers, fasteners, oil refinery equipment and pressure vessels.

Carbon* 0.06% max Chromium 17.50-19.50%
Manganese 2.00% max Nickel 8.0-10.00%
Phosphorous 0.03% max Silicon 1.00% max
Sulphur 0.03% max

(*Carbon content on 304L 0.03% max)

304 stainless steel grade offers excellent corrosion resistance in most environments. It offers moderate resistance to pitting and crevice corrosion. In more corrosive environments, such as chemical or marine, a higher quality stainless grade such as 316 may be better suited.

Stainless steel 304 is readily weldeable with most welding procedures. With its lower carbon content 304L stainless is preferred to standard 304 as it can be welded without loss of corrosion resistance due to intergranular carbide precipitation. Post weld annealing is not normally required, except for service in more extreme conditions. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding stainless steel.

Heat the 304 slowly and uniformly throughout the section to 1150-1250°C. Re heat as necessary and avoid working below 900°C. Cool in air. Forgings will require annealing in order to obtain optimum corrosion resistance.

The oxidation resistance of a stainless steel grade is traditionally termed as the scaling temperature. This is the temperature at which the oxidation rate of the steel becomes unacceptably high. The safe scaling temperature for continuous service of 304 is 875°C. In an oxidising and reducing sulphurous atmosphere the scaling temperature is lowered.

Temp °C Density
Kg/m³		 Mean Coefficient
of Thermal Expansion		 Modulus
of Elasticity
kg/mm		 Electrical
Resistivity
Ωmm²/m		 Specific Heat
Capacity
kcalºC
20 7.90 17.2×10-6 20000 0.7 0.105

Stainless steel 304 / 304L grade is available with BS EN 10204 3.1 mill certificate, please request when placing any orders.

304 /304L stainless is supplied in accordance with our ISO 9001:2015 registration.

UK Delivery UK Delivery only £35.00
ISO 9001:2015 Registration