Iron & Steel

409L 1mm Cold Rolled Stainless Steel Sheets and Plates JIS G4305
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Description of Our 409l Stainless Steel Sheet
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Type | Cold Rolled Stainless Steel Sheet |
Name | 409L stainless steel sheet |
Thickness | 0.5 mm - 3.0 mm |
Size | 1219*2438mm, 1219*3048mm, 1250 x 2438mm , 1265 x 2438mm |
SS Grade | 409L 430 436L 439M 441 444 |
Finish | 2B / 2D |
Avaible finishes | No.4, Hairline, Mirror, Etching, PVD Color, Embossed, Vibration, Sandblast, Combination, lamination etc. |
Origin | POSCO,TISCO, BAOSTEEL |
Packing way | Standard export seaworthy packing or as required |
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Size of our 409L stainless steel sheets
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NO. | Thickness | Width | Finish | Actual Thickness | Brand |
1 | 0.5 | 1219 – 1265mm | 2B | 0.45 – 0.49MM | POSCO |
2 | 0.6mm | 1219 – 1265mm | 2B | 0.56mm | POSCO |
3 | 0.8mm | 1219 – 1265mm | 2B | 0.74-0.78mm | POSCO |
4 | 1.0mm | 1219 – 1265mm | 2B | 0.88-0.97mm | POSCO |
5 | 1.2mm | 1219 – 1265mm | 2B | 1.08-1.18mm | POSCO |
6 | 1.5mm | 1219 – 1265mm | 2B | 1.41-1.48mm | POSCO |
7 | 2.0mm | 1219 – 1265mm | 2B | 1.88-1.96mm | POSCO |
8 | 2.5mm | 1219 – 1265mm | 2B | 2.41-2.46mm | POSCO |
9 | 3.0mm | 1219 – 1265mm | 2B | 2.81-2.94mm | POSCO |
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Size of our 409L stainless steel plates
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NO. | Thickness | Width | Finish | Actual Thickness | Brand |
1 | 3.0mm | 1250 – 1265mm | NO.1 | 2.86 – 2.94mm | TISCO |
2 | 4.0mm | 1250 – 1265mm | NO.1 | 3.76 – 3.88mm | TISCO |
3 | 5.0mm | 1250 – 1265mm | NO.1 | 4.81 – 4.95mm | TISCO |
4 | 6.0mm | 1250 – 1265mm | NO.1 | 5.8 – 5.9mm | TISCO |
5 | 8.0mm | 1250 – 1265mm | NO.1 | 7.7-7.9mm | TISCO |
6 | 10.0mm | 1250 – 1265mm | NO.1 | 10.05mm | TISCO |
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409L Stainless Steel Sheets Introduce
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Type 409 Stainless Steel (UNS S40900) is a stabilized ferritic stainless steel that provides improved oxidation and corrosion resistance compared to carbon steel. Ease of fabrication combined with its corrosion resistance and economy have significantly broadened its utilization in automotive exhaust and other non-automotive applications. ASTM A240 defines three (3) sub categories of Type 409 stainless steel; UNS S40910, UNS S40920 and UNS S40930. Each of these designations has a slightly different Ti or Nb stabilization requirement. Each of these compositions can be supplied as UNS S40900 unless the purchaser specifically identifies a specific composition. It is produced with enhanced formability characteristics known as “High Performance” or “Ultra Form” in the industry.
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Chemical composition of 409L stainless steel
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Grade | C | Mn | Si | P | S | Cr | Ni | Ti | ? |
409 | min.
max. | -
0.08 | -
1.00 | -
1.00 | -
0.045 | -
0.045 | 10.5
11.75 | -
0.5 | 6x C
0.75 |
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Mechanical Properties of 409L stainless steel
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Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
Rockwell B (HR B) max | Brinell (HB) max |
409 | 450 | 240 | 25 | 75 | 131 |
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The typical applications of grade 409 stainless steels are listed below:
# Automotive exhaust tubing
# Catalytic converter systems
# Mufflers

We can also produce 409L 436L 439 441 Stainless Steel Pipes as Clients requirement.
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