Product List
Gangsteel Material Solution
Email: admin@gangsteel.com
Sales: jack@gangsteel.com
430 stainless(full name: AISI 430 stainless steel, also written as Type 430, UNS S43000, SUS 430, EN 1.4016 / X6Cr17, or simply 430 grade stainless) is one of the most popular, affordable, and widely used stainless steel grades in the world.
It is a ferritic stainless steel (magnetic, body-centered cubic structure) with the following key characteristics:
Main Composition & What It Means
|
Element |
Typical Content (wt%) |
Role / Why It Matters |
|---|---|---|
|
Chromium (Cr) |
16.0 – 18.0% |
Main alloying element → forms protective passive oxide layer (good rust resistance in mild environments) |
|
Carbon (C) |
≤ 0.12% |
Kept low → prevents excessive carbide formation and improves weldability |
|
Manganese (Mn) |
≤ 1.00% |
Standard deoxidizer |
|
Silicon (Si) |
≤ 1.00% |
Improves oxidation resistance |
|
Phosphorus (P) |
≤ 0.040% |
Controlled impurity |
|
Sulfur (S) |
≤ 0.030% |
Controlled impurity |
|
Nickel (Ni) |
≤ 0.75%(usually < 0.50% or trace) |
Intentionally very low or zero→ keeps cost low & stable, makes it fully magnetic |
|
Iron (Fe) |
Balance |
Base metal |
Important fact:430 is nickel-free (or ultra-low nickel) by design — unlike 304/316 (8–14% Ni) or 201 (3.5–5.5% Ni). This is its biggest commercial advantage.
Key Properties of 430 Stainless Steel
|
Property |
Value / Rating |
Compared to 304 |
|---|---|---|
|
Magnetic |
Strongly magnetic(always) |
304 is non-magnetic |
|
Corrosion resistance |
Good in mild atmospheres, fresh water, mild acids |
Moderate – lower than 304 in chlorides |
|
Thermal conductivity |
≈ 26 W/m·K |
Much higher (≈60% better than 304) |
|
Thermal expansion |
10.5 × 10⁻⁶/°C |
Lower (≈35% less than 304) |
|
Maximum service temp |
815 °C intermittent |
Good oxidation resistance |
|
Formability / deep drawing |
Excellent |
Very good |
|
Weldability |
Good (with care) |
Very good |
|
Cost |
30–50% lower |
Much cheaper |
|
Price stability |
Very stable |
No nickel volatility |
Most Common Real-World Uses of 430 Stainless Steel
430 is the highest-volume 400-series grade because it offers the best balance of performance and price for mild to moderate applications:
Quick Summary – What “430 stainless” Really Means in Practice
When someone says “430 stainless steel,” they usually mean:
Bottom line: 430 is very good quality and extremely popular — not the highest corrosion resistance, but outstanding value, thermal performance, and formability for most everyday uses.
For current pricing, samples, or a detailed comparison with 304/201/316 for your specific project, our team is ready to help.
Gangsteel is your reliable source for genuine, high-quality 430 stainless steel. Contact us today!
ASTM A516 GR 70 equivalent materials is such as ASME SA516 GR 70, EN 10028 P355GH, and BS1501 224-490 A & B, sh
we supply high-quality A516 Gr 70 steel plate for pressure vessel applications and other standards like ASTM A2
EN10028-2 P355GH for High-Strength Low-Alloy Columbium-Vanadium Structural Steel EN10025-2 S355J2 Structural St
We export A240 304L Stainless Coil 2B, NO.1 No.4 surface, the thickness 0.1mm to 3mm, 3mm to 22mm, Mother mill
