Cold Finish Wires EN / AISI SS 430 Wire , Stainless Steel 430 Wire Ma

Why use this magnetic stainless steel?

Stainless steel grade 430 is a non-hardenable steel containing straight chromium， and belongs to the ferritic group of steels.

All ferritic grades， such as stainless steel grade 430， have excellent stress corrosion cracking resistance. Grade 430 has good corrosion resistance to numerous substances， such as certain organic acids and nitric acid.

Stainless steel grade 430 is capable of resisting oxidation up to 870°C (1598°F) in intermittent usage， and up to 815°C (1499°F) in continuous usage. At room temperature， it has the tendency to become brittle， especially when it has been heated for a long time in the 400-600°C (752-1112°F) range. This issue can be overcome with annealing.

For sub-critical annealing， heating should be performed to 760-815°C (1400-1499°F)， followed by air-cooling or water quenching.
This stainless steel cannot be hardened by thermal treatment.

Chemical Composition:
Fe， <0.12% C， 16-18% Cr， <0.75% Ni， <1.0% Mn， <1.0% Si， <0.040% P， <0.030% S

C Min – – Max – 0.12
Mn Min – – Max – 1
Si Min – – Max – 1
P Min – – Max – 0.04
S Min – – Max – 0.30
Cr Min – 16 Max – 0.18
Mo Min – – Max – –
Ni Min – – Max – 0.50
N Min – – Max – –

Tensile Str (MPa) – 483
Yield Str 0.2% – Proof (MPa) Min – 310
Elong (% 50mm)) Min – 22
Hardness – Rockwell B (HR B) Max – 85
Brinell (HB) Max – 183
Density (kg/m3) – 7750
Elastic Modulus (GPa) – 200
Mean Co-eff of Thermal Expansion (µm/m/°C) 0-100°C – 10.4 0-315°C – 11 0-538°C – 11.4
Thermal Conductivity (W/m.K) – At 100°C – 26.1 At 500°C – 26.3
Specific Heat 0-100°C (J/kg.K) – 460
Elec Resistivity (n?.m) – 600