.

Economical JIS G4105 SCM440 STEEL PIPES SCM420 STEEL PIPES

Petrol Steel Co.,Ltd is a professional economical jis g4105 scm440 steel pipes scm420 steel pipes manufacturer supplying you with customized economical jis g4105 scm440 steel pipes scm420 steel pipes, welcome to wholesale products from our factory.Economical JIS G4105 SCM440 STEEL PIPES SCM420 STEEL PIPES We are leading manufacturer and stockiest of SCM440 STEEL PIPES SCM420 STEEL PIPES in China.SCM440 is a Chrome alloy structure steel. It contains 0.9-1.2% Cr, usual use in gears, pump shafts and tool holders. The standard Hardness is 18-22HRc.Chemical composition of SCM440 STEEL PIPES SCM420 STEEL PIPESJISCSiMnCrMoPSSCM4400.38~0.430.15~0.350.60~0.850.90~1.200.15~0.30≤0.030≤0.030Application of SCM440 STEEL PIPES SCM420 STEEL PIPESJIS SCM440 is commonly used in oil and gas sector. Typical applications as Connecting rod, Pin seam jacketed conveyor, gears, stem assembly, pump shaft and the tool holder.Forging of SCM440 STEEL PIPES SCM420 STEEL PIPESAt 1200°C start forging, keep the forging temperature no below 850°CAnnealing of SCM440 STEEL PIPES SCM420 STEEL PIPESHeat to 850°C slowly, ensure heat thoroughly.  Then cool in the furnace.Quenching for SCM440 STEEL PIPES SCM420 STEEL PIPESSCM440 steel usually supply at 18-22HRc, if need Hardening. Heat SCM440 to 840-870°C, then quench in oil until to room temperature.Tempering to SCM440 STEEL PIPES SCM420 STEEL PIPESHeat SCM440 steel to suitable Tempering temperature, Tempering temperature between 250-375°C.Heat treatment of SCM440 STEEL PIPES SCM420 STEEL PIPES grade materialAccording different use requirement, SCM440 heat treatment is different.  We advice you contact your heat treatment supplier get more details data.Physical properties of SCM440 STEEL PIPES SCM420 STEEL PIPES●Density of SCM440: 7.85 kg/cm3●Thermal expansion co-efficient: 12.2 µm/m°C at 0-100°C●Thermal conductivity: 42.6 W/mK properties of SCM440 STEEL PIPES SCM420 STEEL PIPES●Tensile: 100-130 KSI●0.2% Proof stress: 80-110 KSI●Elongation: 20%●Reduction of Area: 40% Min●hardness: 18-22HRc / 217-235 HBS*All test at room temperature 25°C and heat treatment SCM440 steel to 18-22HRc.Quality Assured and Certification of SCM440 STEEL PIPES SCM420 STEEL PIPES materialAll SCM440 Steel quality by our ISO 9001:2008 quality management system. Material MTC Certification fllow to order delivery to Customers.Equivalent Grades of SCM440 STEEL PIPES SCM420 STEEL PIPES: GB 42CrMoA, JIS SCM440, ASTM 4140, 4142, DIN 42CrMo4, 42CrMoS4. SCM440 are commonly used for the fasten parts with high strength, such as engine, die, motor, gear, transmission parts, shaft, gear, arm, cold forging parts, screw, and so on. SCM440 have the advantages of the stable composition, less harmful elements, high purity, less decarburization layer, less surface defects, easy spheroidized annealing, low cold heading cracking rate, steady heat treating quality, and uniform hardness.SCM440 STEEL PIPES SCM420 STEEL PIPES TypeSCM440 , 42CrMoA , SCM440 , 4140 , 4142 , 42CrMo4 , 42CrMoS4.SCM440 STEEL PIPES SCM420 STEEL PIPES PurposeSCM440 are widely used in high toughness alloy structural steel.SCM440 STEEL PIPES SCM420 STEEL PIPES Product Features:1. High strength and toughness.2. Great property of quenching and can be deep hardened.3. Less tempering brittleness tendency.4. Great machining performance under high temperature and nice appearance after machining.5. Good performance in weld ability.6. Excellent performance in impact absorption, such as where the hammer may bounce back and has barely any damage caused upon impact.SCM440 STEEL PIPES SCM420 STEEL PIPES Conditions of heat treatment●Annealing: 830℃ Furnace Cooling●Normalization: 830~880℃ Air Cooling●Hardening: 830~880℃ Oil Cooling●Tempering: 530~630℃ Rapid CoolingCriterion for heat treating conditions revise:●Ac: 750~790℃●Ar: 740~690℃●Ms: 310℃SCM440 STEEL PIPES SCM420 STEEL PIPES Mechanical propertiesTensile strength (kgf/mm²): ≧100Yield strength (kgf/mm²): ≧85Elongation (%): ≧12Cross section reduction rate (%): ≧45Impact value (J/cm2): ≧6Hardness (Hb) : 285~352SCM440 STEEL PIPES SCM420 STEEL PIPES Size RangeShape SCM440 STEEL PIPES SCM420 STEEL PIPES Size(mm) Round Bar 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 45, 46, 48, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 315, 325, 335, 345, 355, 365, 375, 385, 395, 405, 415, 425, 435, 445, 455, 465, 475, 485, 495, 505, 515, 525, 535, 545, 555, 565, 575, 585, 595, 605.Types of SCM440 STEEL PIPES SCM420 STEEL PIPES 40Cr steel pipes40Cr steel tubesEconomical SCM440 STEEL tubesSCM435 42CrMo4 42CrMo | AISI4140 Alloy Steel Round Bar JIS F 0014:2000 Glossary of terms for shipbuilding (hull part -piping)JIS F 0301:1990 Schemes of thermal insulation of piping for small shipsJIS F 0414:1996 Shipbuilding - internal wiring and piping of engine control consoleJIS F 0506:1996 Shipbuilding - applications of copper pipesJIS F 0507:1992 Small ships - steel pipes - applicationJIS F 2007:1976 Mooring pipesJIS F 2030:1978 Single point mooring pipesJIS F 3993:1996 Discharge pipes for dredgerJIS F 3994:1996 Floaters of discharge pipes for dredgerJIS F 3995:1991 Rubber sleeves for dredge discharge pipesJIS G 3429:1988 Seamless steel tubes for high pressure gas cylinderJIS G 3439 Seamless steel oil well casing, tubing and drill pipeJIS G 3441:2004 Alloy steel tubes for machine purposesJIS G 3442:2004 Galvanized steel pipes for ordinary pipingJIS G 3443:2004 Coated steel pipes for water serviceJIS G 3444:2004 Carbon steel tubes for general structural purposesJIS G 3445:1988 Carbon steel tubes for machine structural purposesJIS G 3446:1994 Stainless steel pipes for machine and structural purposesJIS G 3447:2004 Stainless steel sanitary pipesJIS G 3448:2004 Light gauge stainless steel tubes for ordinary pipingJIS G 3451:1987 Fittings of coated steel pipes for water serviceJIS G 3452:2004 Carbon steel pipes for ordinary pipingJIS F 7008:1996 Standard specification of thermal insulation for pipingJIS F 7101:1993 Pipes of ship's machinery - standard velocity of flowJIS G3445 STKM11A STEEL TUBESJIS G3445 STKM12A STEEL TUBESJIS G3445 STKM12B STEEL TUBESJIS G3445 STKM12C STEEL TUBESJIS G3445 STKM13A STEEL TUBESJIS G3445 STKM13B STEEL TUBESJIS G3445 STKM13C STEEL TUBESJIS G3445 STKMI4A STEEL TUBESJIS G3445 STKM14B STEEL TUBESJIS G3445 STKM14C STEEL TUBESJIS G3445 STKM15A STEEL TUBESJIS G3445 STKM18C STEEL TUBESJIS G3445 STKM16A STEEL TUBESJIS G3445 STKM18C STEEL TUBESJIS G3445 STKM17A STEEL TUBESJIS G3445 STKM17C STEEL TUBESJIS G3445 STKM18A STEEL TUBESJIS G3445 STKM18B STEEL TUBESJIS G3445 STKM18C STEEL TUBESJIS G3445 STKM19A STEEL TUBESJIS G3445 STKM19C STEEL TUBESJIS G3445 STKM20A STEEL TUBESJIS G3445 STKM 11A steel tubesJIS G3445 STKM 12A steel tubesJIS G3445 STKM 12B steel tubesJIS G3445 STKM 12C steel tubesJIS G3445 STKM 13A steel tubesJIS G3445 STKM 13B steel tubesJIS G3445 STKM 13C steel tubesJIS G3445 STKM 14A steel tubesJIS G3445 STKM 14B steel tubesJIS G3445 STKM 14C steel tubesJIS G3445 STKM 15A steel tubesJIS G3445 STKM 15B steel tubesJIS G3445 STKM 18A steel tubesJIS G3445 STKM 18B steel tubesJIS G3445 STKM 18C steel tubesJIS G3445 STKM 19A steel tubesJIS G3445 STKM 19C steel tubesJIS G3445 STKM 20A steel tubesThe types of EN10216-2 steel pipesJIS G 3454:1988 Carbon steel pipes for pressure serviceJIS G 3455:1988 Carbon steel pipes for high pressure serviceJIS G 3456:2004 Carbon steel pipes for high temperature serviceJIS G 3457:1988 Arc welded carbon steel pipesSCM440 STEEL PIPES SCM440 STEEL PIPES SCM420 STEEL PIPES material Equivalent Grades: GB 20CrMo, JIS SCM420, ASTM 4118, DIN 25CrMo4. SCM440 STEEL PIPES SCM440 STEEL PIPES SCM420 STEEL PIPES materials are alloy steel with high harden ability, temper brittleness, well weld ability, less cold cracking tendency, good machinability, and great cold plastic strain. SCM420 generally are used for the parts which need high wear resistance, such as gears, shafts, high-pressure pipes, all kinds of fasteners, and so on.SCM440 STEEL PIPES SCM420 STEEL PIPES PurposeSCM420 is widely used in general structural steel.SCM440 STEEL PIPES SCM420 STEEL PIPES Conditions of heat treatment●Annealing: 850℃ Furnace Cooling●Normalization: 850~900℃ Air Cooling●Hardening: 850~900℃ 1st Oil Cooling, 800~850℃ 2rd Oil Cooling●Tempering: 150~200℃ Air CoolingSCM440 STEEL PIPES SCM420 STEEL PIPES Criterion for heat treating conditions revise:●Ac: 770~835℃●Ar: 770~700℃●Ms: 410℃SCM440 STEEL PIPES SCM420 STEEL PIPES Mechanical propertiesTensile strength (kgf/mm²): ≧95Elongation (%): ≧14Cross section reduction rate (%): ≧40Impact value (J/cm2): ≧6Hardness (Hb) : 352~362SCM440 STEEL PIPES SCM420 STEEL PIPES Size RangeShape  SCM440 STEEL PIPES SCM420 STEEL PIPES Size(mm) Round Bar 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 45, 46, 48, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 315, 325, 335, 345, 355, 365, 375, 385, 395, 405, 415, 425, 435, 445, 455, 465, 475, 485, 495, 505, 515, 525, 535, 545, 555, 565, 575, 585, 595, 605.SCM440 STEEL PIPES SCM420 STEEL PIPES Steel TypeSCM420 steel tubes20Cr steel pipes20Cr steel tubes20CrMo steel pipes4118 steel tubes 25CrMo4 steel pipesJIS G 3458 STPA 12 steel tubesJIS G 3458 STPA 20 steel tubesJIS G 3458 STPA 22 teel tubesJIS G 3458 STPA 23 steel tubesJIS G 3458 STPA 24 teel tubesJIS G 3458 STPA 25 steel tubesJIS G 3458 STPA 26 steel tubesJIS G 3458:1988 Alloy steel pipesJIS G 3459:2004 Stainless steel pipesJIS G 3460:1988 Steel pipes for low temperature serviceJIS G 3465:1988 Seamless steel tubes for drillingJIS G 3466:1988 Carbon steel square pipes for general structural purposesJIS G 3468 Large diameter welded stainless steel pipesJIS G 3469:2002 Polyethylene coated steel pipesJIS G 3471:1977 Corrugated steel pipes and sectionsJIS G 3474:1995 High tensile strength steel tubes for tower structural purposesJIS G 3491:2004 Asphalt protective coatings for steel water pipeJIS G 3492:1993 Coal-tar enamel protective coatings for steel water pipeJIS G 4903:1991 Seamless nickel-chromium-iron alloy pipesJIS G 5201:1991 Centrifugally cast steel pipes for welded structureJIS G 5202:1991 Centrifugally cast steel pipes for high temperature and high pressure serviceJIS G 5525:2000 Cast-iron drainage pipes and fittingsJIS G 5526:1998 Ductile iron pipesJIS G 5527:1998 Ductile iron fittingsJIS G 5528:1984 Epoxy-powder coating for interior of ductile iron pipes and fittingsJIS H 0502:1986 Method of eddy current testing for copper and copper alloy pipes and tubesJIS H 0515:1992 Eddy current inspection of titanium pipes and tubesJIS H 0516:1992 Ultrasonic inspection of titanium pipes and tubesJIS H 3300:1997 Copper and copper alloy seamless pipes and tubesJIS H 3320:1992 Copper and copper alloy welded pipes and tubesJIS H 3401:2001 Pipe fittings of copper and copper alloysJIS H 4080:1999 Aluminum and aluminum alloys extruded tubes and cold-drawn tubesJIS H 4090:1990 Aluminum and aluminum alloy welded pipes and tubesJIS H 4202:1998 Magnesium alloy seamless pipes and tubesJIS H 4311:1993 Lead and lead alloy tubes for common industriesJIS H 4312:2000 Polyethylene lining lead pipes for water supplyJIS H 4552:2000 Nickel and nickel alloy seamless pipes and tubesJIS H 4630:2001 Titanium and titanium alloy seamless pipesJIS H 4635:2001 Titanium and titanium alloy welded pipesJIS R 1201:1991 Clay pipesJIS R 1511:1991 Conical flanged straight pipes of acid proof porcelains for chemical industryJIS R 1512:1991 Conical flanged 90 degrees bent pipes of acid proof porcelains for chemical industryJIS R 1513:1991 Conical flanged 45 degrees bent pipes of acid proof porcelains for chemical industryJIS R 1514:1991 Conical flanged tee pipes pipes of acid proof porcelains for chemical industryJIS R 1534:1991 Metal joint for conical flanged pipes of acid proof porcelains for chemical industryJIS S 2080:1994 Exhaust pipes for burning appliancesJIS S 3028:1994 Oil discharge copper pipe for oil burning appliancesJIS T 7101:1993 Medical gas pipeline systemsJIS T 9211:1990 Pipes for endoskeletal type of lower limb prosthesesONE OF THE KIND, MILLIONS OF CHOICESSUPERIOR QUALITYPROMPT DELIVERYFAVORABLE FEEDBACKALL AVAILABLE IN PESCOSELECT PESCO, YOU WILL BE RIGHTFor more info and price of SCM440 STEEL PIPES SCM420 STEEL PIPES, please send us inquiry and you will have quick reply soon. 


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