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430 stainless steel pipe, with a high chromium content of 16–18%, offers exceptional corrosion resistance in dry and moderately corrosive environments without the high cost of nickel.
Nickel-Free. Cost-effective
ASTM A268 / A554 Certified
Zero Nickel – Stable Pricing
Custom OD / WT/ Finish
870°C Oxidation Resistance
Weldable – No Preheating Required
430 stainless steel pipe is a ferritic stainless grade with 16–18% chromium, zero nickel, and proven oxidation resistance up to 870°C — delivering reliable performance in appliances, automotive trim, food processing, and decorative applications at a fraction of the cost of 304 or 316.
The Good Choice When Corrosion Resistance Meets Cost Limited
Nickel-Free, Price Stable
With zero nickel content, 430 pricing tracks chromium - far less volatile than nickel-bearing 304 or 316. Procurement teams gain better budget predictability on long-term contracts.
Excellent High-Temp Oxidation Resistance
Continuous service up to 870°C (1,598°F) and intermittent use to 980°C make 430 the preferred grade for furnace components, automotive exhausts, and heat exchangers.
Food-Grade & Hygienic
Food safe with proper passivation. Widely specified in commercial kitchen equipment, food conveyor systems, and catering surfaces.
Superior Formability
Ferritic microstructure enables excellent cold-forming and deep-drawing. Tube bending, hydroforming, and roll-forming operations are all achievable without cracking.
Magnetic in All Conditions
Inherently magnetic — facilitates in-line inspection, automated sorting, and integration with magnetically-driven conveyor and handling systems in production environments.
Mirror-Bright Surface Finish
Available in BA, 2B, hairline (HL), and No. 4 finishes. Polishes to a reflective surface comparable to 304 — ideal for decorative trim, handrails, and architectural cladding.
All values per ASTM A268 and standard mill certification. Third-party inspection available on request.
| Property | Value | Notes |
|---|---|---|
| Grade Designation | AISI 430 / UNS S43000 / 1.4016 | ASTM, EN, DIN standards |
| Tensile Strength | 450 – 600 MPa | Annealed condition |
| Yield Strength (0.2% PS) | 205 – 310 MPa | Annealed |
| Elongation at Break | 22 – 25 % | Min. in 50 mm gauge |
| Brinell Hardness | 183 – 207 HB | Annealed |
| Elastic Modulus | 200 GPa | — |
| Density | 7.74 g/cm³ | — |
| Max. Service Temp. (cont.) | 870 °C | Continuous oxidation |
| Max. Service Temp. (intermt.) | 980 °C | Intermittent oxidation |
| Thermal Conductivity | 26.1 W/m·K | At 100°C |
| Chromium Content | 16 – 18 % | No molybdenum in std. grade |
| Nickel Content | ≤ 0.75 % | Effectively nickel-free |
| Carbon Content | ≤ 0.12 % | Low carbon for weldability |
| Applicable Standards | ASTM A268 / A554 / A249 | Mill certs (EN 10204 3.1) available |
| Type | OD Range | Wall Thickness | Length |
| Welded Pipe (ERW) | 6 mm – 610 mm | 0.5 mm – 12 mm | 1 m – 12 m / Custom |
| Seamless Pipe | 6 mm – 219 mm | 1 mm – 20 mm | 1 m – 12 m / Custom |
| Ornamental Tube (Round) | 9.5 mm – 101.6 mm | 0.5 mm – 3.0 mm | Custom cut available |
| Square / Rectangular Tube | 10×10 mm – 150×150 mm | 1 mm – 6 mm | Custom cut available |
| Finish | Description | Typical Use |
| No.1 | Hot-rolled, annealed, pickled — dull/matte | Industrial pipes, structural use |
| 2B | Cold-rolled, smooth matte silver | Appliances, food equipment, general |
| BA (Bright Annealed) | Cold-rolled, mirror-like reflective | Electrical equipment, appliances |
| No.4 / HL (Hairline) | Brushed / satin linear grain | Architectural trim, elevator panels |
| Mirror (#8) | Highly polished, reflective | Decorative fixtures, luxury trim |
From household dishwashers to industrial exhaust systems — 430 stainless steel pipe spans consumer, commercial, and industrial environments with dependable, cost-efficient performance.
430 is a ferritic, nickel-free grade with 16–18% chromium — lower cost and price-stable. 304 is austenitic with 18% chromium and 8% nickel — better corrosion resistance and weldability, but more expensive and subject to nickel price swings.
Choose 430 for appliances, automotive trim, and decorative applications; choose 304 for food processing lines, chemical handling, or marine-adjacent environments.
430 resists rust in moderate atmospheric, freshwater, and mild acid conditions. It can surface stain (tea-staining) in high-humidity or salt-laden environments, which is typically cosmetic and removable. It will corrode in chloride-rich environments (seawater, swimming pools) — use 316 grade in those situations. Proper passivation and maintenance dramatically extend service life.
Yes, 430 is weldable without preheating. Post-weld annealing at 750–800°C is recommended to restore corrosion resistance and ductility in the heat-affected zone. ER430 filler metal is standard; ER309L is preferred for dissimilar metal welds. It is easier to weld than martensitic grades like 410 or 420.
Complete control over products allows us to ensure our customers receive the best quality prices and service. Contact us for a free quote,JBLSTEEL will provide the right solution for your project.
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