409 Stainless Steel

409 Stainless Steel

409 stainless steel is a ferritic stainless steel. Due to its high chromium content, it has good corrosion resistance and can resist most common corrosive media, including water vapor, air, acid and alkali solutions, etc. In addition, 409 stainless steel also has good high temperature resistance, can maintain structural stability in high temperature environments, and is not prone to oxidation and deformation. At the same time, 409 stainless steel also has high strength and hardness and can withstand certain mechanical loads and impacts.

409 stainless steel is mainly used in automobile exhaust systems, heat exchangers, piping equipment, kitchen appliances, building decoration and other fields.

UNS S40900
DIN 1.4512
EN X2CrTi12

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs

Bar: 0.5~600mm Diameter
Coil: 0.5~150mm Thick
Plate: 0.5~200mm Thick
Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
Available in specific sizes

409 Stainless Steel Bar/Rod
409 Stainless Steel Pipe/Tube
409 Stainless Steel Seamless Pipe
409 Stainless Steel Welded Pipe
409 Stainless Steel Coil/Strip
409 Stainless Steel Plate/Sheet
409 Stainless Steel Hot Rolled Plate
409 Stainless Steel Cold Rolled Plate
409 Stainless Steel Wire
409 Stainless Steel Fitting (Flange, Elbow, Tee…)
409 Stainless Steel Profile (Angle, Channel, H/I Beam…)
409 Stainless Steel Customize

Available, welcome to consult

A) Packaging Details: Standard export seaworthy packing or as required.
B) Delivery Time: 30-50 days, 7 days for stock goods.
C) Loading Port: Shanghai, Tianjin, Qingdao.
D) Offer Ability: 5000MT/Per Month.
E) MOQ: 1 Pcs.

Get A Free Quote
Gnee 409 Stainless Steel Manufacturer Supplies Rich Forms

Gnee is a leading ISO certified 409 Stainless Steel supplier, manufacturer, exporter, manufacturer, wholesaler, distributor in China. We offer superior quality 409 Stainless Steel and manufactured as per the highest industry standards. With prompt delivery, professional technical support and competitive pricing, our Stainless Steel is available in a variety of grades and sizes and can be customized to your exact requirements. Gnee is your reliable partner to meet your steel stainless steel needs, welcome to contact us!

Product Name409 Stainless Steel
Rich FormsPlate, pipe, bar, coil, profiles, strip, fittings, flange
Surface Treatment2B, 2D, BA, No.1, No.3, No.4, No.6, No.7, No.8, HL (Hairline), SB (Scotch-Brite), 6k, 8k, 12k, LASER, EMBOSSED
Customized ServicesSupport customization
Processing ServicesCutting, bending/forming, welding, hole processing/grooving, surface treatment, custom processing, etc.
ApplicationAutomotive exhaust systems
Catalytic converters
Mufflers and resonators
Heat exchangers
Agricultural equipment
Industrial ovens and furnaces
Structural components in corrosive environments
Chimney liners
Bus frames and body panels
Truck and trailer components
3CR12Easy to weld and good corrosion resistance. Heavy sections are more easily available when compared to 409.
304High heat resistance and corrosion resistance. Grade 304 is expensive.
321Better heat resistance when compared to 304 or 409.
Aluminized steelCheaper than grade 409 stainless steel, but less resistant to exhaust gases.
Parameters Of 409 Stainless Steel
ElementComposition (%)
Carbon (C)0.030 max
Silicon (Si)1.00 max
Manganese (Mn)1.00 max
Phosphorus (P)0.040 max
Sulfur (S)0.020 max
Chromium (Cr)10.5 – 11.7
Nickel (Ni)0.50 max
Titanium (Ti)6 x C% min, 0.50 max
Tensile Strength380 MPa (55 ksi)
Yield Strength205 MPa (30 ksi)
Elongation25% min
Modulus of Elasticity220 GPa (32,000 ksi)
Poisson’s Ratio0.28
Hardness (Rockwell B)88 max
Density7.7 g/cm³
Melting Range1450-1510°C (2642-2750°F)
Thermal Conductivity25.9 W/m·K
Electrical Resistivity0.60 μΩ·m
Magnetic PropertiesMagnetic
Coefficient of Expansion10.2 μm/m·K (at 0-100°C)
Why Choose Gnee 409 Stainless Steel Company?

Gnee, as a Chinese stainless steel supplier with 15 years of history, exports to 60+ countries. We provide various shapes of stainless steel, including plates, coils, pipes, bars, and fittings. Gnee is committed to providing comprehensive stainless steel solutions, with excellent after-sales service, we support customization and ensure product quality.

In addition, our stainless steel has been successfully exported to more than 60 countries such as Singapore, Malaysia, The United Arab Emirates, Oman, Turkey, Nigeria, Egypt, Kuwait, Indonesia, Qatar, and Kenya. Many regular customers come to visit our company and factory and make multiple orders.

What Services Does Gnee Provide?

Gnee can provide the following measurement services for stainless steel:

Dimensional Measurement: Measure dimensional parameters such as length, width and thickness by measuring instruments to ensure that the stainless steel is qualified and meets the design requirements.
Surface Measurement: Measure parameters such as flatness, bumpiness and surface roughness of the stainless steel surface to help ensure that the quality and surface condition of the stainless steel meets the requirements.
Thickness Measurement: Use thickness gauges to accurately measure the thickness of the stainless steel to ensure it meets the design requirements.
Material Measurement: Use material analysis instruments to measure the chemical composition and mechanical properties of the stainless steel to ensure that the quality and properties of the stainless steel meet the requirements.
Bending And Deformation Measurements: Use tools such as bending gauges and displacement sensors to measure and monitor the degree of bending and deformation of stainless steel to ensure that it is within the allowable range.

Ask Measurement service

Gnee can customize the size and shape of your stainless steel for your specific project needs. Custom design of stainless steel is carried out by a team of professional engineers and designers. Based on the project requirements and constraints, they will use calculation and simulation tools combined with experience and technical knowledge to optimize the stainless steel design to meet the specific needs of your different projects

● Adjustment of the thickness, width and length of stainless steel based on load calculations and strength requirements for structural design.
● The shape of the stainless steel can be designed according to the demand characteristics.
● If the convenience of installation and maintenance is considered, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.

Ask Customized Services

Sourcing Gnee stainless steel can provide the following further processing services. We can customize to meet the specific needs of our customers for different projects.

Cutting Service: Stainless steel can be custom cut to obtain the desired shape and size according to the customer’s needs. For example, flame cutting, plasma cutting, laser cutting, etc., can cut stainless steel into desired plates, blocks, shaped pieces, etc.
Bending & Forming: Stainless steel is bent and formed by applying stress and appropriate processes to obtain the desired shape.
Welding Services: Stainless steel can be subjected to various types of welding services, including manual arc welding, gas-shielded welding, laser welding, etc.
Hole Turning And Machining: Stainless steel is turned and holes are machined through the use of machining equipment. These processes produce smooth surfaces, precise holes and threads to meet specific assembly requirements.
Surface Treatments: Surface treatments can be applied to improve the corrosion resistance and aesthetics of the stainless steel. This includes methods such as painting, hot dip galvanizing, and electroplating to add a protective layer and provide corrosion resistance.

Ask Deep Processing Services

Gnee stainless steel can provide testing and the following third-party inspection services. These third-party testing services provide independent and objective verification of stainless steel’s compliance with relevant standards and regulations.

Mechanical Property Testing: Used to determine whether the strength, toughness, ductility and other mechanical properties of stainless steel meet the specified requirements.
Chemical Composition Analysis: Quantitative determination of elements on stainless steel samples through spectral analysis, atomic absorption spectroscopy, inductive coupling and other technologies.
Corrosion Performance Test: Common corrosion performance test methods include salt spray corrosion test, acid-base corrosion test and electrochemical corrosion test.
Tensile Strength Test: Through the tensile test, the parameters such as yield strength, tensile strength and breaking strength of stainless steel during the tensile process are measured.
Non-Destructive Testing: Non-destructive testing is used to evaluate hidden defects, cracks and looseness in stainless steel materials. Common methods include ultrasonic testing, magnetic particle testing, eddy current testing, and radiographic testing.
Pressure Test: By exposing stainless steel products to a specific pressure, it is tested whether there are problems such as leakage or deformation to ensure that its pressure resistance meets the requirements.
Surface Quality Test: Used to evaluate the surface flatness, smoothness and oxide layer of stainless steel products.
Welding Performance Test: Check the appearance, mechanical properties and metallographic microstructure of the weld to ensure that the quality of the stainless steel welded joint meets the requirements.
Metallographic Inspection: Through metallographic inspection, the structure, grain size, non-metallic inclusions, etc. of stainless steel are checked to evaluate its quality and performance.

Ask Testing Services
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