409 stainless steel
- 409 stainless steel
Walmay Metal’s 409 stainless steel is an economical and practical ferritic alloy with an excellent balance of corrosion resistance, heat resistance and cost-effectiveness. 409 stainless steel is commonly used in the automotive industry, especially exhaust systems, and other industrial applications that require high-temperature performance.
409 steel Product Description
Material: | 409 stainless | Certificate | ISO9001,CE or as per customer. |
Size | According to customer needs | Standard: | AISI, ASTM, GB,BS,EN,JIS,DIN |
MOQ: | 1 ton, We can accept a sample order. | Payment terms | FOB, CFR, CIF, EXW. |
304 stainless steel bar: | Specifications: diameter 5mm-200mm | 316 stainless steel bar | Specification: diameter 6mm-100mm |
201 stainless steel bar: | Specification: diameter 3mm-80mm | 430 stainless steel bar | Specification: diameter 3mm-120mm |
420 stainless steel bar: | Specification: diameter 3mm-150mm | 904L stainless steel bar | Specification: diameter 6mm-80mm/td> |
630 stainless steel bar: | Specification: diameter 10mm-300mm | 303 stainless steel bar | Specification: diameter 3mm-80mm |
321 stainless steel bar | Specification: diameter 6mm-100mm | 316L stainless steel bar | Specification: diameter 6mm-100mm |
ss 409 stainless steel physical properties and chemical composition
The typical chemical composition:Element Content (%)
Chromium (Cr):10.5 – 11.75
Carbon (C): ≤ 0.08
Manganese (Mn) :≤ 1.00
Silicon (Si) :≤ 1.00
Phosphorus (P): ≤ 0.045
Sulfur (S) :≤ 0.045
Titanium (Ti):6×C – 0.75
Iron (Fe):Remainder
The physical properties of 409 stainless steel are as follows:
Density:7.75 g/cm³
Melting point:1425-1510°C
Coefficient of thermal expansion (20-100°C):11.2 × 10⁻⁶/°C
Thermal conductivity: 24.9 W/m·K
Resistivity:0.60 μΩ·m
Magnetic properties:Magnetic
ss 409 stainless steel Product Specification and Size
No | GB | JIS | ASTM | UNS | KS | BSEN | AS | CNS |
---|---|---|---|---|---|---|---|---|
1 | 12Cr17Mn6Ni5N | SUS201 | 201 | S20100 | STS201 | 1.4372 | 201-2 | 201 |
2 | 12Cr18Mn9Ni5N | SUS202 | 202 | S20200 | STS202 | 1.4373 | – | 202 |
3 | 12Cr17Ni7 | SUS301 | 301 | S30100 | STS301 | 1.4319 | 301 | 301 |
4 | 06Cr19Ni10 | SUS304 | 304 | S30400 | STS304 | 1.4301 | 304 | 304 |
5 | 022Cr19Ni10 | SUS304L | 304L | S30403 | STS304L | 1.4306 | 304L | 304L |
6 | 06Cr19Ni10N | SUS304N1 | 304N | S30451 | STS304N1 | 1.4315 | 304N1 | 304N1 |
7 | 06Cr19Ni9NbN | SUS304N2 | 304N2 | S30452 | STS304N1 | – | 304N2 | 304N2 |
8 | 022Cr19Ni10N | SUS304LN | 304LN | S30453 | STS304LN | – | 304LN | 304LN |
9 | 10Cr18Ni12 | SUS305 | 305 | S30500 | STS305 | 1.4303 | 305 | 305 |
10 | 06Cr23Ni13 | SUS309S | 309S | S30908 | STS309S | 1.4833 | 309S | 309S |
11 | 06Cr25Ni20 | SUS310S | 310S | S31008 | STS310S | 1.4845 | 310S | 310S |
12 | 06Cr17Ni12Mo2 | SUS316 | 316 | S31600 | STS316 | 1.4401 | 316 | 316 |
13 | 06Cr17Ni12Mo2Ti | SUS316Ti | 316Ti | S31635 | – | 1.4571 | 316Ti | 316Ti |
14 | 022Cr17Ni12Mo2 | SUS316L | 316L | S31603 | STS316L | 1.4404 | 316L | 316L |
15 | 06Cr17Ni12Mo2N | SUS316N | 316N | S31651 | STS316N | – | 316N | 316N |
16 | 022Cr17Ni13Mo2N | SUS316LN | 316LN | S31653 | STS316LN | 1.4429 | 316LN | 316LN |
17 | 06Cr18Ni12Mo2Cu2 | SUS316J1 | – | – | STS316J1 | – | 316J1 | 316J1 |
18 | 06Cr18Ni11Ti | SUS321 | 321 | S32100 | STS321 | 1.4541 | 321 | 321 |
19 | 06Cr18Ni11Nb | SUS347 | 347 | S34700 | STS347 | 1.4500 | 347 | 347 |
20 | 10Cr17 | SUS430 | 430 | S43000 | STS430 | 1.4016 | 430 | 430 |
409 ss Product packaging and loading
For409 ss steel packaging: Standard packing for export with waterproof protection.
Other packaging can be customized according to customer requirements.
Port:Shanghai port or Qingdao port
Lead Time:
Quantity (Tons) | 1-5 | 6-20 | 21-100 | >100 |
Est.Time (days) | 3 | 15 | 30 | negotiated |
Application of 409 steel
409 stainless steel is widely used in the following fields due to its excellent performance:
1. Automobile industry
Exhaust system: muffler, exhaust pipe, catalytic converter housing.
2. Construction and decoration
Roof, wall, door and window frames.
Decorative materials with low-cost corrosion resistance.
409 ss
STAINLESS bar
Why Choose Walmay Metal for 409 material?
Walmay Metal is a trusted supplier of 409 Stainless Steel, providing high-quality, cost-effective material.
We provide comprehensive technical support, including:Material selection recommendations.Customized product services to meet special needs.
Contact Walmay Metal today to learn more about our stainless steel 409 price. We’d like to give you a product that meets your specific needs!
ISO 9001 certification
ROHS compliance
ASTM/EN standards
Related Products

Stainless steel
Economical: low cost, high cost performance.
Easy to process: suitable for a variety of processing techniques, reducing production costs.
Although 409 stainless steel is not as strong or corrosion resistant as 304 stainless steel, it is an ideal replacement material in cost sensitive scenarios where corrosion resistance is low.
Yes, 409 stainless steel is magnetic and suitable for applications where magnetism is required.
If you have any questions, please use the form below to send us a message or contact Walmay Metal’s office location.


