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We specialize in the supply of a full range of 430 Stainless Steel Pipe / Tube and support customized , accurately matching your application needs based on core properties.
Material Grade: AISI 430 / EN 1.4016
430 stainless steel belongs to the ferritic stainless steel family. It is magnetic in all conditions and does not harden by heat treatment. Its chromium content provides basic corrosion resistance and good oxidation resistance, especially in dry or indoor environments.
By Production Method:
Welded 430 Stainless Steel Pipe / Tube
Seamless 430 Stainless Steel Tube (limited availability, mainly small sizes)
By Forming Process:
Cold Rolled 430 Stainless Steel Tube
Hot Rolled 430 Stainless Steel Pipe
Cold rolled tubes offer better surface finish and dimensional accuracy, while hot rolled pipes are more suitable for structural and general-purpose applications.
Specifications
| Item | Specification |
|---|---|
| Product Type | 430 Stainless Steel Pipe / Tube |
| Manufacturing Process | Welded (ERW), limited seamless available |
| Form | Round, square, rectangular (custom shapes on request) |
| Outer Diameter / Size | Customizable according to standards or drawings |
| Wall Thickness | Thin wall to standard industrial thickness |
| Length | Fixed length or random length |
| Surface Finish | 2B, BA, No.4 (Brushed), Polished, Pickled |
| End Type | Plain end, beveled end, or customized |
| Dimensional Tolerance | ASTM / EN / JIS or customer requirement |
| Supply Condition | Annealed, pickled, or polished |
| Processing Service | Cutting, bending, polishing, end forming |
430 Stainless Steel Pipe / Tube
430 stainless steel pipe and tube are ferritic stainless steel products containing approximately 16–18% chromium and no nickel. Compared with austenitic grades such as 304 and 316, 430 stainless steel offers good corrosion resistance in mild environments, stable mechanical properties, and excellent formability at a more economical cost.
430 stainless steel pipes are widely used in applications where corrosion resistance is required but exposure conditions are not highly aggressive, making them a cost-effective alternative for decorative, structural, and light industrial purposes.
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Nickel (Ni) | ≤ 0.75 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 22% |
| Hardness | ≤ 183 HB |
Heat Treatment of 430 Stainless Steel Pipe / Tube
1. Annealing
Temperature range: 760–815°C
Process: Heating followed by air cooling
Purpose: Relieves cold working and welding stresses, improves ductility and dimensional stability
2. Stress Relieving
Applied after cold forming or welding
Helps reduce residual stress and minimize deformation during service
3. Hardening
430 stainless steel cannot be hardened by heat treatment
Mechanical properties are mainly determined by chemical composition and forming process
4. Performance Stability
Proper annealing stabilizes the ferritic microstructure and improves consistency in welded areas.
Ensures reliable performance in decorative, structural, and general industrial applications.
*Note:430 stainless steel cannot be hardened by heat treatment. Heat treatment is used for structure stabilization and formability, not strength enhancement.
Features of 430 Stainless Steel Pipe / Tube
Corrosion Resistance:
Good resistance to atmospheric corrosion and mild chemical environments, suitable for indoor and low-corrosive applications.
Mechanical Properties:
Moderate strength with good formability, suitable for bending, forming, and general structural use.
Weldability:
Weldable by standard methods; post-weld heat treatment may be applied to improve weld zone stability.
Magnetic Property:
Magnetic in all conditions due to its ferritic structure, distinguishing it from austenitic stainless steels.
Cost Efficiency:
Low nickel content provides a cost-effective alternative to 304 stainless steel for non-critical corrosion environments.
Applications of 430 Stainless Steel Pipe / Tube
Decorative and Architectural Use:
handrails, railings, furniture frames, indoor structures; recommended: thin to medium wall tubes.
Household Appliances:
appliance frames, exhaust components, structural supports; recommended: small to medium diameter tubes.
Automotive Components:
exhaust trims, brackets, structural parts; recommended: precision-formed tubes.
General Industrial Use:
support structures, enclosures, equipment frames; recommended: standard wall thickness pipes.
Indoor Piping Systems:
non-pressure and low-corrosion fluid transport; recommended: welded tubes with annealed condition.
They are especially suitable for indoor or low-corrosion environments where appearance and cost control are important.
FAQ – 430 Stainless Steel Pipe / Tube
Q1: Does 430 stainless steel pipe require heat treatment?
Yes. Heat treatment such as annealing is commonly used to relieve stress after cold forming or welding, although it does not increase mechanical strength.
Q2: Is heat treatment a critical step for 430 stainless steel pipe?
It depends on the application. For welded or heavily cold-worked pipes, heat treatment is important to ensure dimensional stability and consistent performance.
Q3: Can 430 stainless steel pipe be hardened by heat treatment?
No. 430 is a ferritic stainless steel and cannot be hardened by heat treatment. Strength is mainly determined by chemical composition and forming process.
Q4: How does heat treatment affect corrosion resistance of 430 stainless steel pipe?
Proper annealing helps stabilize the microstructure and can improve corrosion resistance, especially in welded areas.
Q5: Is post-weld heat treatment always necessary for 430 stainless steel tubes?
Not always. For general decorative or low-stress applications, it may not be required. For industrial or precision uses, post-weld heat treatment is recommended.