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Cold Rolled 430 Stainless Steel Sheet with Bright Surface and Corrosion Resistance

Certification	AISI, ASTM
Minimum Order Quantity	120 kg
Price	US $1.55-2.74 / kg

Product Details

Thickness	0.3 - 3.0mm (cold Rolled), 4.0 - 10.0mm (hot Rolled)	Standard Size	10002000mm, 12192438mm (cold Rolled), 1500*6000mm (hot Rolled)
Surface Treatment	2B, BA, NO.4, Hairline, 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 Expansion	10.4 μm/m/°C (0-100°C)
Thermal Conductivity	26.1 W/m.K (at 100°C)	Specific Heat	460 J/kg.K (0-100°C)
Electrical Resistivity	600 NΩ.m	Heat Resistance	870°C (intermittent), 815°C (continuous)
Chromium Content	16-18%
Highlight	Cold Rolled 430 Stainless Steel Sheet , Corrosion Resistant 430 Stainless Steel Sheet , Bright Surface AISI430 Stainless Steel

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Product Description

Grade AISI430 / 430 / SUS430 / 1.4016 Stainless Steel Sheet

Premium quality 430 stainless steel sheets available from stock inventory.

Product Specifications

Product	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 use in automatic screw machines. Grade 434 has similar properties to grade 430, although it is a molybdenum-bearing version that enhances corrosion resistance.

Chemical Composition

Chemical compositions of grade 430 stainless steels:

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

Grade Specification Comparison

Grade	UNS No	Old British BS	Old British En	Euronorm No	Euronorm Name	Swedish SS	Japanese JIS
430	S43000	430S17	60	1.4016	X8Cr17	2320	SUS 430
430F	S43020	-	-	1.4104	X12CrMoS17	2383	SUS 430F

Alternative Grades

Grade	Reasons for choosing alternative
430F	Higher machinability needed in bar product, reduced corrosion resistance acceptable
434	Better pitting resistance required
304	Slightly higher corrosion resistance needed with improved welding and cold forming ability
316	Much better corrosion resistance needed with improved welding and cold forming ability
3CR12	Lower corrosion resistance acceptable in cost-critical applications

Corrosion Resistance

All ferritic grades, including stainless steel grade 430, have excellent stress corrosion cracking resistance. Grade 430 provides good corrosion resistance to numerous substances, with maximum resistance achieved in well-polished or buffed condition. Its pitting and crevice corrosion resistance is comparable to grade 304. 430F, being a high-sulfur free machining grade, has comparatively lower resistance to pitting and crevice corrosion than non-free machining grades.

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. It may become brittle at room temperature, particularly when heated for extended periods in the 400-600°C (752-1112°F) range, which can be mitigated through annealing.

Heat Treatment

Solution annealing involves heating grade 430 to 815-845°C (1499-1553°F), followed by slow furnace cooling to 600°C (1112°F) and rapid air-cooling. Slow cooling between 540-400°C (1004-752°F) may cause embrittlement.

For sub-critical annealing, heat 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). If embrittlement occurs in welded metal, post-weld annealing at 790-815°C (1454-1499°F) can be performed, though grain refinement will not occur. Recommended filler rods include grade 430, 308L, 309, or 310 based on application requirements.

Machining

Grade 430 offers easier machinability than standard austenitic steels like grade 304, though galling may occur. Lightly drawn bars machine more easily than annealed bars. Grade 430F is specifically designed for easy machining.

Fabrication

Grade 430's low work hardening rate facilitates easy bending and forming. However, its low ductility rate limits rigorous operations. Grade 430 wire can handle rigorous cold heading, with sub-critical intermediate annealing potentially required for extreme cold working.

Applications