440C forged stainless steel round bar price, 440c stainless steel seamless tubing manufacture

Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels. 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.
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Products Details

Properties Metric Imperial
Tensile strength 760-1970 MPa 110000-286000 psi
Yield strength (@ strain 0.200%) 450-1900 MPa 65300-276000 psi
Bulk modulus 166 GPa 24100 ksi
Shear modulus 83.9 GPa 12200 ksi
Elastic modulus 200 GPa 29008 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break 2-14 % 2-14 %
Hardness, Rockwell B (converted from Brinell hardness) 97 97
Grade 440C stainless steel is used in the following applications: ▪ Gage blocks ▪ Cutlery ▪ Ball bearings and races ▪ Molds and dies ▪ Knives ▪ Valve components ▪ Measuring instruments
440C stainless steel plate sizes and specifications
Grade 440C
Cold rolled stainless steel plate Thickness: 0.3mm- 16.0mm, Width: 1000mm - 2000mm,Length: as requirements, Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel sheet Thickness: 3.0mm - 300mm, Width: 1000mm - 3000mm Length: as requirements, Surface: No.1/pickling
Standard ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,BS 1449, DN17441, G4305
Stainless steel plate Thickness: 8.0mm - 300mm, Width: 1000mm - 3000mm Length: as requirements, Surface: No.1/pickling
440C stainless steel strip sizes and specifications
Grade 440C
Cold rolled stainless steel strip Thickness: 0.3mm- 3.0mm, Width: 5mm - 900mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel strip Thickness: 3.0mm - 16mm, Width: 10mm - 900mm Surface: No.1/pickling
Stainless steel foil Thickness: 0.02mm- 0.2mm, Width: Less than 600mm, Surface: 2B
Standard ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,  BS 1449, DN17441, G4305
 
440C stainless steel coil sizes and specifications
Grade 440C
Cold rolled stainless steel coil Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm,Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel coil Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mm Surface: No.1/pickling
Standard ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,   BS 1449, DN17441, G4305
440C stainless steel pipe sizes and specifications
Grade 440C
Stainless steel seamless pipe Outside diameter: 4.0 - 1219mm, Thickness: 0.5 -100mm,Length: 24000mm
Stainless steel welded pipe Outside diameter: 6.0 - 2800mm, Thickness: 0.3 -45mm,Length: 18000mm
Stainless steel capillary pipe Outside diameter: 0.4 - 16.0mm, Thickness: 0.1 -2.0mm,Length: 18000mm
Stainless steel welded sanitary pipe Outside diameter:8.0- 850mm, Thickness: 1.0 -6.0mm
Stainless steel seamless sanitary pipe Outside diameter: 6.0- 219mm, Thickness: 1.0 -6.0mm
Stainless steel square pipe Side Length: 4*4 - 300*300mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel rectangular pipe Side Length: 4*6 - 200*400mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel coil pipe Outside diameter: 0.4 - 16mm, Thickness: 0.1 - 2.11mm
Standard American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213 ASTM A511 ASTM A789, ASTM A790, ASTM A376, ASME SA335, B161, SB163, SB338, SB667/668 Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85· European Standard: EN10216-5, EN10216-2 Japanese Standard: JIS G3463-2006, JISG3459-2012 Russian Standard: GOST 9941-81
440C stainless steel profile sizes and specifications
Grade 440C
Specification EN, DIN, JIS, ASTM, BS, ASME, AISI, ISO
Standard ASTM A276/ASME SA276, ASTM A479/ASME SA479 & ASTM A164/ASME SA164 .
Stainless steel round Bar Diameter: 2mm - 600mm
Stainless steel bright Bar Diameter: 2mm - 600mm
Stainless steel hex Bar Dimension: 6mm - 80mm
Stainless steel square bar Dimension: 3.0 - 180mm
Stainless steel flat bar Thickness: 0.5mm - 200mm, Width: 1.5mm - 250 mm
Stainless steel angle bar as requirements
Length Normally 6m, or produce as requirements
Surface Black, Bright. Peeled and Polished, Solution annealed.
Delivery condition cold drawn, hot rolled, forged, grinding, centerless grinding
Tolerance H8, H9, H10, H11, H12, H13,K9, K10, K11, K12 or as per clients’ requirements
Element Content (%)
Iron, Fe 79.15
Chromium, Cr 17
Carbon, C 1.1
Manganese, Mn 1
Silicon, Si 1
Molybdenum, Mo 0.75
Equivalent materials to grade 440B stainless steel are given in the table below.
AISI 440B ASTM A276 ASTM A314 ASTM A473
DIN 1.4112 QQ S763 FED QQ-S-763 MIL SPEC MIL-S-862
SAE J405 (51440B) SAE 51440B ASTM A580
Grade 440C stainless steel is slightly cold workable using common practices.Grade 440C stainless steel is pre-heated at 760°C (1400°F). Temperature can be increased up to 1038-1204°C (1900-2200°F). It should not be heated below 927°C (1700°F). It is then slowly cooled at room temperature and fully annealed.Grade 440C stainless steel is used in the following applications: ▪ MS 5618 ▪ AMS 5630 ▪ AMS 5880 ▪ ASTM A276 ▪ ASTM A314 ▪ ASTM A473 ▪ ASTM A493 ▪ ASTM A580 ▪ DIN 1.4125 ▪ QQ S763 ▪ MIL-S-862 ▪ SAE 51440C ▪ SAE J405 (51440C)Grade 440C stainless steel is annealed at 843-871°C (1550-1600°F) followed by slowly cooling in the furnace.Grade 440C stainless steel can be tempered by soaking at 148°C (300°F).Grade 440C stainless steel can be hardened by heating at 760°C (1400°F). Temperature can be increased up to 1010°C (1850°F) followed by cooling in air or oil.

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