• 304 stainless steel is the most versatile and widely used of all stainless steels. Its chemical composition, mechanical properties, weldability and corrosion/oxidation resistance provide the best all-round performance stainless steel at relatively low cost. It also has excellent low-temperature properties and responds well to hardening by cold working. If the potential for intergranular corrosion in the heat-affected zone exists, 304L is recommended.
Steel grades | 304,304L |
Production | cold rolled |
Thickness | 0.2-3.0mm |
Width | 1000mm,1219mm,1240mm,1500mm |
Standard size: | 1000*2000mm, 1219*2438mm, 1500*3000mm |
Edge | Mill and slit |
Finishes | 2B,BA,8K,No.4,HL,Etching,Embossed,Colored |
Film | Paper,PE, Rubber, Laser, Fiber Film |
packing | Water-proof wooden package |
Application | Food industry,Kitchenware,Electric equipment, Construction material,Building construction, Medical equipment. |
Payment terms | T/T and L/C at sight |
Delivery time | 15-20 days, it depends on the quantity. |
Equivalents
304- S30400, EN 1.4031
304L- S30403, EN 1.4307
Application
304 is used in many industrial, commercial and domestic fields because of its good corrosion and heat resistance. Some applications include: Cookware, sinks, cutlery and catering equipment, food and beverage and pharmaceutical. Tanks and containers for a large variety of corrosive liquids, oil and gas, cryogenic.
Chemical composition
Grade | %C | %Mn | %Si | %S | %P | %Cr | %Ni |
304 | 0.08 | 2.0 max | 1.0max | 0.03 max | 0.045 max | 18.0-19.5 | 8.0-10.5 |
304L | 0.03 | 17.5-19.5 |
304L can be stress relieved at 450ºC to 600ºC for 45 minutes with little danger of sensitisation. A lower stress relieving temperature of 400ºC maximum must be used for 304.
Cold rolled
304 / 304L being extremely tough and ductile is readily fabricated by cold working. Typical operations include bending, forming, and deep drawing.
Note: Austenitic stainless steels work harden. Severe cold forming operations should be followed by annealing
Welding
304/ 304L has good welding characteristics and is suited to all standard welding methods. Either matching or slightly over-alloyed filler wires such as 308L should be used. Weld discolouration should be removed by pickling and passivation to restore maximum corrosion resistance.
