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ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance

ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance

MOQ: 100
Price: 1.48
Detail Information
Certification
AISI, ASTM
Model NO.:
430
Shape:
Flat
Technique:
Cold Rolled
Surface Treatment:
Bright
Specification:
1220*2440, 1500*3000, 1500*6000, 2000*6000mm
Thickness:
0.3 - 3.0mm (cold Rolled), 4.0 - 10.0mm (hot Rolled)
Standard Size:
1000*2000mm, 1219*2438mm (cold Rolled), 1500*6000mm (hot Rolled)
Surface:
2B BA NO.4 Hailrline Mirror 8K
Tensile Strength:
483 MPa (min)
Yield Strength:
310 MPa (min)
Elongation:
22% (min)
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), 26.3 W/m.K (at 500°C)
Highlight:

ASTM A240 Stainless Steel Sheet

,

NO.4 Finishing Cold Rolled Stainless Steel

,

Corrosion Resistant 430 Stainless Steel

Product Description
ASTM A240 430 Stainless Steel Sheet
ASTM A240 430 Stainless Steel Sheet AISI430 Stainless Steel Cold Rolled SS Sheet NO.4 Finishing
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
Introduction of 430 Stainless Steel
Stainless steel grade 430 is a non-hardenable steel containing straight chromium, belonging to the ferritic group of steels. This steel is known for its good corrosion resistance and formability, coupled with practical mechanical properties. It can be used in certain chemical applications.
Grade 430F stainless steel is usually 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
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
Possible Alternative Grades
Grade Reasons for choosing 430
430F Higher machinability than 430 is needed in bar product, and reduced corrosion resistance is acceptable
434 Better pitting resistance is required
304 Slightly higher corrosion resistance is needed, together with greatly improved ability to be welded and cold formed
316 Much better corrosion resistance is needed, coupled with greatly improved ability to be welded and cold formed
3CR12 Lower corrosion resistance is acceptable in a cost-critical application
Corrosion Resistance
All ferritic grades, such as stainless steel grade 430, have excellent stress corrosion cracking resistance. Grade 430 has good corrosion resistance to numerous substances, with maximized resistance in well-polished or buffed condition. Its pitting and crevice corrosion resistance is quite similar to grade 304. 430F is a high-sulfur free machining grade with comparatively lesser resistance to pitting and crevice corrosion than non-free machining grades.
Heat Resistance
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 heated for extended periods in the 400-600°C (752-1112°F) range. This issue can be overcome with annealing.
Heat Treatment
Solution annealing can be performed by heating stainless steel grade 430 to 815-845°C (1499-1553°F), followed by slow furnace cooling to 600°C (1112°F) and quick air-cooling. Slow cooling between 540 and 400°C (1004 and 752°F) tends to cause embrittlement. 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.
Welding
To perform welding, stainless steel grade 430 must be pre-heated at 150-200°C (302-392°F). In case of embrittlement in the welded metal, the area can be post-weld annealed at 790-815°C (1454-1499°F), though grain refinement will not occur. It is recommended to use grade 430, 308L, 309, or 310 filler rod based on the application.
Machining
The machinability of stainless steel grade 430 is easier than standard austenitic steels such as grade 304, though galling may occur. Lightly drawn bars are easier to machine than bars in the annealed condition. Grade 430F is easy to machine.
Fabrication
Stainless steel grade 430 has a low work hardening rate which enables easy bending and forming. The low ductility rate, however, makes it difficult to perform very rigorous operations. Grade 430 wire can handle rigorous cold heading. Sub-critical intermediate annealing may be required for extreme cold working.
Applications of 430 Stainless Steel
  • Dish washer linings
  • Refrigerator cabinet panels
  • Element supports and fasteners
  • Stove trim rings and chimney liners
  • Automotive trim and lashing wires
Product Photos
ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance 0 ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance 1 ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance 2
Products
PRODUCTS DETAILS
ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance
MOQ: 100
Price: 1.48
Detail Information
Certification
AISI, ASTM
Model NO.:
430
Shape:
Flat
Technique:
Cold Rolled
Surface Treatment:
Bright
Specification:
1220*2440, 1500*3000, 1500*6000, 2000*6000mm
Thickness:
0.3 - 3.0mm (cold Rolled), 4.0 - 10.0mm (hot Rolled)
Standard Size:
1000*2000mm, 1219*2438mm (cold Rolled), 1500*6000mm (hot Rolled)
Surface:
2B BA NO.4 Hailrline Mirror 8K
Tensile Strength:
483 MPa (min)
Yield Strength:
310 MPa (min)
Elongation:
22% (min)
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), 26.3 W/m.K (at 500°C)
Minimum Order Quantity:
100
Price:
1.48
Highlight

ASTM A240 Stainless Steel Sheet

,

NO.4 Finishing Cold Rolled Stainless Steel

,

Corrosion Resistant 430 Stainless Steel

Product Description
ASTM A240 430 Stainless Steel Sheet
ASTM A240 430 Stainless Steel Sheet AISI430 Stainless Steel Cold Rolled SS Sheet NO.4 Finishing
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
Introduction of 430 Stainless Steel
Stainless steel grade 430 is a non-hardenable steel containing straight chromium, belonging to the ferritic group of steels. This steel is known for its good corrosion resistance and formability, coupled with practical mechanical properties. It can be used in certain chemical applications.
Grade 430F stainless steel is usually 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
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
Possible Alternative Grades
Grade Reasons for choosing 430
430F Higher machinability than 430 is needed in bar product, and reduced corrosion resistance is acceptable
434 Better pitting resistance is required
304 Slightly higher corrosion resistance is needed, together with greatly improved ability to be welded and cold formed
316 Much better corrosion resistance is needed, coupled with greatly improved ability to be welded and cold formed
3CR12 Lower corrosion resistance is acceptable in a cost-critical application
Corrosion Resistance
All ferritic grades, such as stainless steel grade 430, have excellent stress corrosion cracking resistance. Grade 430 has good corrosion resistance to numerous substances, with maximized resistance in well-polished or buffed condition. Its pitting and crevice corrosion resistance is quite similar to grade 304. 430F is a high-sulfur free machining grade with comparatively lesser resistance to pitting and crevice corrosion than non-free machining grades.
Heat Resistance
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 heated for extended periods in the 400-600°C (752-1112°F) range. This issue can be overcome with annealing.
Heat Treatment
Solution annealing can be performed by heating stainless steel grade 430 to 815-845°C (1499-1553°F), followed by slow furnace cooling to 600°C (1112°F) and quick air-cooling. Slow cooling between 540 and 400°C (1004 and 752°F) tends to cause embrittlement. 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.
Welding
To perform welding, stainless steel grade 430 must be pre-heated at 150-200°C (302-392°F). In case of embrittlement in the welded metal, the area can be post-weld annealed at 790-815°C (1454-1499°F), though grain refinement will not occur. It is recommended to use grade 430, 308L, 309, or 310 filler rod based on the application.
Machining
The machinability of stainless steel grade 430 is easier than standard austenitic steels such as grade 304, though galling may occur. Lightly drawn bars are easier to machine than bars in the annealed condition. Grade 430F is easy to machine.
Fabrication
Stainless steel grade 430 has a low work hardening rate which enables easy bending and forming. The low ductility rate, however, makes it difficult to perform very rigorous operations. Grade 430 wire can handle rigorous cold heading. Sub-critical intermediate annealing may be required for extreme cold working.
Applications of 430 Stainless Steel
  • Dish washer linings
  • Refrigerator cabinet panels
  • Element supports and fasteners
  • Stove trim rings and chimney liners
  • Automotive trim and lashing wires
Product Photos
ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance 0 ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance 1 ASTM A240 430 Stainless Steel Sheet Cold Rolled with NO.4 Finishing and Corrosion Resistance 2