430 410 stainless steel coil
304 stainless steel plate (&304L) are common use austenitic stainless steel, they are a relatively low cost stainless (compared to 316/316L stainless). Referred standards ASTM A-240, ASME SA -240.
Features:
1.Good corrosion resistance than other steel in variety of different media
2.Excellent low temperature performances
3.Good welding characteristics
4.Post weld annealing is not normally required
5.Heat resistant performances
6.Hot workability such as punching or bending
7.No heat treatment hardening phenomenon (non-magnetic, use temperature -196 ℃ ~ 800 ℃)
Applications:
1.Energy and Heavy Indsutries - Oil and Gas, Electrical steel (Silicon Steel), Solar Board.
2.Power Plant.
3.Heat Exchangers, Boilers
4.Chemical Storage Vessels
5.Automotive and Transportation
6.Architectural and Construction
7.Marine Building
8.Medical Equipment
9.Food Machine Manufacturing, Food and Catering
304/304L STAINLESS STEEL
Type 304 stainless steel is the most common austenitic chromium-nickel stainless steel and is a variation of the classic 18-8 stainless. Its properties provide corrosion resistance to a wide range of atmospheric, chemical, textile, petroleum, and food industry exposures.
Type 304L is an extra low-carbon variation of Type 304. This helps in eliminating carbide precipitation due to welding.
Stainless is created by extracting chromite from underground mines. The chromite is crushed to produce a chromite concentrate. The chromite concentrate is melted in an electric furnace with other raw materials (iron ore, manganese, nickel, etc.) use for the specific stainless type.
After melting the material is formed into slabs and sent to a hot rolling mill. The rolling mill reduces the thickness of the steel and is cooled by water. The now coil is transferred to a cold rolling mill.
When the material arrives at the cold rolling mill it is covered in black scale. It is sent through an annealing and pickling line to remove the scale.
Product Parameters
Chemical Composition 304 vs 316 stainless steel
Elements (%) | 304 (S30400) | 304L (S30403) | 316 (S31600) | 316L (S31603) |
Carbon, Max | 0.07 | 0.030 | 0.08 | 0.030 |
Manganese, Max | 2.00 | 2.00 | 2.00 | 2.00 |
Phosphorus, Max | 0.045 | 0.045 | 0.045 | 0.045 |
Sulphur, Max | 0.030 | 0.030 | 0.030 | 0.030 |
Silicon, Max | 0.75 | 0.75 | 0.75 | 0.75 |
Chromium | 17.5-19.5 | 17.5-19.5 | 16.0-18.0 | 16.0-18.0 |
Nickel | 8.0-10.5 | 8.0-12.0 | 10.0-14.0 | 10.0-14.0 |
Mo | ... | ... | 2.00-3.00 | 2.00-3.00 |
Nitrogen | 0.10 | 0.10 | 0.10 | ... |
Mechanical Properties 304 vs 316 stainless steel
Mechanical Properties | 304 (S30400) | 304L (S30403) | 316 (S31600) | 304L (S30403) |
Tensile Strength Min | 75 Ksi [515 Mpa] | 70 Ksi [485 Mpa] | 75 Ksi [515 Mpa] | 70 Ksi [485 Mpa] |
Yield Strength Min 0.2% offset | 30 Ksi [205 Mpa] | 25 Ksi [170 Mpa] | 30 Ksi [205 Mpa] | 25 Ksi [170 Mpa] |
Yield Strength Min 1% offset | 36 Ksi [250 Mpa] | 35 Ksi [240 Mpa] | 38 Ksi [260 Mpa] | 38 Ksi [260 Mpa] |
Elongation Min | 40% | 40% | 40% | 40% |
Hardness Max | 92 HRB | 92 HRB | 95 HRB | 95 HRB |
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