If you are looking for stainless steel sheets with strong corrosion resistance and suitable for high-temperature environments, we offer ASTM A240 Grade 409L Cold Rolled Stainless Steel Sheet, specifically designed for automotive exhaust systems, boilers, chemical equipment, and other applications.
409L stainless steel, as a low-alloy ferritic stainless steel, contains 11-13% chromium (Cr) and has a low carbon content, exhibiting strong oxidation resistance, heat resistance, and corrosion resistance, making it particularly suitable for applications in medium-temperature environments. Our 409L cold-rolled stainless steel sheets have a smooth surface, high dimensional accuracy, and are available in thicknesses from 0.3mm to 5mm, with custom lengths available to meet various processing needs.
After cold rolling, 409L stainless steel sheets have higher strength and a better surface finish, making them suitable for manufacturing automotive exhaust pipes, heat exchangers, kitchen equipment, and exterior finishes. Its superior corrosion resistance makes it particularly suitable for acidic, humid, or high-temperature environments, while maintaining low cost while improving durability.


409L stainless steel plate specifications
| Material | 409 L |
| Size | width:1500-1800 mm length: 3000-6000mm thickness: 3.0 -120mm |
| Surface | original surface is NO.1, we can make surface treatment like: 2B BA NO.4 mirror and pvc coat |
| Brand | TISCO JISCO BAOSTEEL POSCO.etc |
| packing |
standard export seaworthy packing or as customer required. |
Chemical Compostion of 409 L
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Nb |
|
<=0.03 |
1.00 |
1.00 |
0.04 |
0.03 |
10.5-11.7 |
0.5 |
0.75 |
409L stainless steel HR plate Mechanical properties
|
|
Heat Treatment |
Yield strength(N/mm2) |
Tensile strength |
Elongation (%) |
Hardness |
||
|
HB |
HRB |
HV |
|||||
|
409l |
S |
≥205 |
≥400 |
≥25 |
≤187 |
≤80 |
≤175 |
Surface treatment of 409L stainless steel plate
| Surface finish | Gauge (in) | Width (in) |
|---|---|---|
| 2B – heat treated, pickled, Cold rolled, skin passed | 10–24 | max. 72* |
| 2D – heat treated, pickled, Cold rolled | 12–24 | max. 60 |
| BA Mexinox only | 18–28 | max. 48 |
| Polished (not brushed) | 11–24 | max. 60 |
| Temper rolled Mexinox only | 13–29 | max. 48 |
SS 409 Plate Price
| Product | Price |
|---|---|
| Stainless Steel Sheet ASTM/AISI Gr. 409: Size: 1.5 mtrs X 3 mtrs X 2 mm Thk | $1.42/ Kilogram |
| Hot Rolled Stainless Steel Plate/ Sheets Spec. 8.000mm X 1250mm X2,500- 409 | $0.96/ Kilogram |
| Cold Rolled Stainless Steel Sheets/plates 1.2x1290x600mm - 409 | $0.95/ Kilogram |
| Stainless Steel Plate 409 Size:- 05mm Thk X 1500 X 8100 mm | $1.35/ Kilogram |
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Our products conform to ASTM A240 and other international standards, ensuring stable and reliable product quality suitable for demanding industrial applications. Whether you're making bulk purchases or small-batch customizations, we offer flexible supply options and on-time delivery services to help you meet your project needs. All transactions are supported by International Trade Assurance and SGS/BV inspection services.
Global Markets: We are known for our consistent quality and on-time delivery, supplying customers in Europe, the Middle East, Southeast Asia, and South America.






