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Cold Rolled 430 Stainless Steel Sheet with 2B BA Finishing and Corrosion Resistance

Certification	AISI, ASTM
Minimum Order Quantity	150 kg
Price	US $1.32-2.32 / kg

Product Details

Model Number	430	Shape	Flat
Technique	Cold Rolled	Surface Treatment	Bright
Thickness Range	0.3 - 3.0mm (cold Rolled), 4.0 - 10.0mm (hot Rolled)	Standard Size	10002000mm, 12192438mm (cold Rolled), 1500*6000mm (hot Rolled)
Surface Finishing	2B BA NO.4 Hailrline Mirror 8K	Tensile Strength	483 MPa (min)
Yield Strength	310 MPa (min)	Elongation	22% (min In 50mm)
Hardness	Rockwell B 85 (max), Brinell 183 (max)	Density	7750 Kg/m3
Elastic Modulus	200 GPa	Thermal Conductivity	26.1 W/m.K At 100°C
Electrical Resistivity	600 NΩ.m
Highlight	Cold Rolled 430 Stainless Steel Sheet , 2B BA Finishing Ferritic Stainless Steel Sheet , Corrosion Resistant Cold Rolled Stainless Steel Sheet

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Product Description

Cold Rolled 430 Stainless Steel Sheet

High-quality 430 stainless steel sheets with 2B and BA finishing from leading manufacturers including TISCO and JISCO. This ferritic stainless steel offers excellent corrosion resistance and formability for industrial applications.

Products: 430 Stainless Steel Sheet

Thickness: Cold rolled 0.3-3.0mm, Hot rolled 4.0-10.0mm

Standard Size: Cold rolled 1000×2000mm, 1219×2438mm; Hot rolled 1500×6000mm

Surface: 2B, BA, NO.4, Hairline, Mirror 8K, etc.

Brand: TISCO, JISCO, POSCO, BAOSTEEL

Standard: ASTM A240 / JIS G4305 / EN 10088-2

Other Grades: 201, 202, 301, 304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 430, 440, 441, 443, 444, 2205, 2507, etc.

Our Service: Slit Cutting, Surface Processing

430 Stainless Steel Introduction

Stainless steel grade 430 is a non-hardenable steel containing straight chromium, belonging to the ferritic group of steels. Known for its good corrosion resistance and formability, coupled with practical mechanical properties, it can be used in various chemical applications.

Grade 430F stainless steel is typically provided in bar form for automatic screw machines, while grade 434 offers similar properties with enhanced corrosion resistance due to molybdenum content.

Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
430	- 0.12	- 1	- 1	- 0.04	- 0.030	16-18	-	- 0.50	-
430F	- 0.12	- 1.25	- 1	- 0.06	0.15 -	16-18	-	-	-

Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness Rockwell B (HR B) max	Hardness Brinell (HB) max
430	483	310	22	85	183
430F	552 typical	379 typical	25 typical	-	262

Physical Properties

Grade	Density (kg/m³)	Elastic Modulus (GPa)	Thermal Expansion (μm/m/°C) 0-100°C	Thermal Expansion (μm/m/°C) 0-315°C	Thermal Expansion (μm/m/°C) 0-538°C	Thermal Conductivity (W/m.K) at 100°C	Thermal Conductivity (W/m.K) at 500°C	Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (nΩ.m)
430	7750	200	10.4	11.0	11.4	26.1	26.3	460	600
430F	7750	200	10.4	11.0	11.4	26.1	26.3	460	600

Performance Characteristics

Corrosion Resistance

All ferritic grades, including stainless steel grade 430, offer excellent stress corrosion cracking resistance. Grade 430 provides good corrosion resistance to numerous substances, with pitting and crevice corrosion resistance similar to grade 304. Corrosion resistance is maximized in well-polished or buffed condition.

Heat Resistance

Stainless steel grade 430 can resist oxidation up to 870°C (1598°F) in intermittent usage and up to 815°C (1499°F) in continuous usage. Proper annealing can prevent brittleness that may occur when heated for extended periods in the 400-600°C range.

Heat Treatment

Solution annealing is performed by heating to 815-845°C (1499-1553°F), followed by slow furnace cooling to 600°C (1112°F) and rapid air-cooling. Sub-critical annealing involves heating to 760-815°C (1400-1499°F) followed by air-cooling or water quenching. This stainless steel cannot be hardened by thermal treatment.

Welding

Welding requires pre-heating at 150-200°C (302-392°F). For embrittlement in welded metal, post-weld annealing at 790-815°C (1454-1499°F) is recommended. Grade 430, 308L, 309, or 310 filler rods should be used based on application requirements.

Machining & Fabrication

Grade 430 offers easier machinability than standard austenitic steels like grade 304, though galling may occur. The low work hardening rate enables easy bending and forming, while the low ductility rate limits rigorous operations. Grade 430F provides enhanced machinability for automatic applications.

Applications