409 Stainless Steel Sheet
- 409 Stainless Steel Sheet
409 stainless steel is a ferritic stainless steel commonly used in machinery, construction and other engineering projects. It has excellent high temperature resistance, corrosion resistance and economic practicality.
Due to the presence of austenite grains and alloying elements, the mechanical properties and strength hardness of 409 stainless steel plate are very good.
409 Stainless Steel Sheet Product Description
Material: | ss 409 material | Shape: | Plate (rectangular cross section) |
Surface treatment: | BA, HL, SB, polished (Mirror) | Standard: | ASTM A240、AMS 5525、AMS 5731 |
Delivery status: | Solution Annealed;Aged | Thickness: | cold rolled:0.2mm-3.0mm;hot rlled:3.0mm-200mm |
Technique: | Cold Rolled/ Hot Rolled | Length: | 2000mm,2440mm(8feet),2500mm,3000mm,3048mm(10feet) 5800mm, 6000mm or as your requirements |
Certification: | ISO, SGS,BV | Width: | 1000mm,1219mm(4feet),1250mm,1500mm,1524mm(5feet), 1800mm,2200mm or as your requirements |
409 stainless steel Processing Technology
Surface | Features | Processing technology |
---|---|---|
1D | The surface has a discontinuous granular shape known as a fog surface. | hot rolling + annealing shot peening pickling + cold rolling + annealing pickling. |
2D | A slightly silvery white color. | hot rolling + annealing shot peening pickling + cold rolling + annealing pickling. |
2B | Silver white with better gloss and flatness than a 2D surface. | hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling. |
Ba | Excellent surface gloss, high reflectivity, like a mirror surface. | hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling. |
No.3 | Good gloss, coarse grain surface. | polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002). |
No.4 | Good gloss, fine lines on the surface. | Processing process: polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002). |
HL | Silver grey with hair streaks. | 2D products or 2B products with the appropriate granularity of abrasive materials for polishing continuous abrasive grains surface. |
MIRRO | Specular. | 2D products or 2B products with appropriate granularity of the grinding material grinding and polishing to the mirror effect. |
stainless steel 409 Product packaging and loading
For stainless steel 409 packaging: Standard packing for export with waterproof protection.
Other packaging can be customized according to customer requirements.
Port:Shanghai port or Qingdao port
Quantity (Tons) | 1-5 | 6-20 | 21-100 | >100 |
Est.Time (days) | 3 | 15 | 30 | To be negotiated |
409 steel physical properties and chemical composition
409 chemical composition:
Element | Fe | Cr | C | Mn | Si | P | S | Ti |
range (%) | banlance | 10.5 – 11.7 | ≤0.08 | ≤1.0 | ≤1.0 | ≤0.045 | ≤0.03 | 6×C% – 0.75 |
409 stainless steel plate has excellent mechanical properties
Performance | Values | Test Standards |
Tensile Strength | ≥380 MPa | ASTM A240 |
Yield Strength | ≥170 MPa | ASTM A240 |
Elongation | ≥20% | ASTM A240 |
Hardness | ≤89 HRB | ASTM E18 |
Impact Toughness | ≥50 J | ASTM A370 |
Density | 7.75 g/cm³ | – |
Physical properties of 409 stainless steel plate
Performance | Values |
Density | 7.75 g/cm³ |
Melting Point | 1427°C – 1510°C |
Thermal Expansion | 10.4 μm/m·°C (20°C-100°C) |
Thermal Conductivity | 24.9 W/m·K (100°C) |
Electrical Resistivity | 0.60 μΩ·m (20°C) |
Magnetic Permeability | 1.02 |
ss 409 material Application
409 stainless steel plates are widely used in the following fields:
Automobile manufacturing: used to manufacture automobile exhaust systems, mufflers, catalytic converters and exhaust pipes.
Heat exchangers: used to manufacture industrial heat exchangers, condensers and heaters.
Chemical equipment: used to manufacture storage tanks, pipes, valves and pump bodies.
Architectural decoration: used to manufacture building curtain walls, roofs, doors and windows and decorative parts.
STAINLESS
Why Choose Walmay Metal for 409 ss steel?
1. Abundant inventory and fast delivery: As a 409 stainless steel sheet supplier, Walmay Steel has sufficient inventory, can quickly respond to customer needs, and support small batch customization and large batch orders.
2. Stainless steel 409 price: Through large-scale production and efficient supply chain management, we provide customers with the best 409 stainless steel price.
Excellent high temperature resistance:
409 stainless steel plate can still maintain good strength and oxidation resistance in high temperature environment (up to 675°C), suitable for high temperature equipment.
Economical and practical: 409 stainless steel plate has low cost, high cost performance and is suitable for large-scale application.

Stainless steel
FAQ
304 stainless steel is superior to 409 stainless steel in corrosion resistance, high temperature resistance and mechanical properties.
409 stainless steel plate has lower cost and good high temperature resistance, suitable for applications such as automotive exhaust systems, while 304 stainless steel plate is more corrosion resistant and suitable for the food and medical industries.
409 stainless steel, as a widely used ferritic stainless steel, has shown unique advantages in many fields with its good corrosion resistance, heat resistance and low cost.
Walmay steel provides a variety of surface treatment methods such as bright annealing, brushing, sandblasting, and polishing.
Contact Product
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