Description
Jiangsu Liangyi is professional manufacturer of 708M40 ,EN19,709M40 open die forging parts and seamless rolled steel forged rings from china
Following is the shape of 708M40 ,EN19,709M40 forging steel material that we could do is:708M40 Forged Steel round bars square bars Flat bars Rectangles Bars Rods,708M40 Forged forging steel rings seamless rolled rings,EN19 Forged Forging Steel Hubs housing shell Sleeves Bushes Bushing Cases Hollow Bars,708M40 forging forged steel shafts,gear,pinion shafts,spindles,gear wheel,EN19 Forged Forging Steel Discs Disks Blocks plates,708M40 Forged Forging Steel Pipe Tubes Tubings Piping Shells Casings Case barrels Housings.
708M40 ,EN19,709M40 is A versatile low alloy steel that possesses good tensile and shock resistance properties combined with ductility. Its resistance to wear can be considerably increased by flame hardening and it is also suitable for nitriding (for maximum wear and abrasion resistance). Bars are often supplied in the hardened and tempered condition with a tensile strength range of 850-1000N/mm2• The bars are readily machinable so that the components can be put into service without the cost of further treatment. Bars can also be supplied in the softened state which require hardening and tempering but will give increased machinability.
FOllowing is melting methods of 708M40 ,EN19,709M40 forged parts
1. Step 1- Basic EF
Step 2- Either Argon Oxygen Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD) or Vacuum Degrassing.
Step 3- Either Electroslag Remelting (ESR) or Electroflux Remelting (EFR) or Vacuum Arc Remelting (VAR).
Optional Step 4- Vacuum Arc Remelting (VAR)
OR
2. Step 1- Vacuum Induction Melting (VIM)
Step 2- Either Electroslag Remelting (ESR) or Electroflux Remelting (EFR) or Vacuum Arc Remelting (VAR).
Optional Step 3- Vacuum Are Remelting (VAR).
The minimum forging reduction ratio of 708M40 forged bars shall be 4:1, where the forging reduction ratio is defined as the product the area reduction ratio(s) for each hot working operation performed
Chemical composition of 708M40 forged parts
Carbon 0.36 – 0.44
Silicon 0.10 – 0.40
Manganese 0.70 – 1.00
Phosphorous 0.00 – 0.035
Sulphur 0.00 – 0.04
Chromium 0.90 – 1.20
Molybdenum 0.15 – 0.25
FOllowing is heat treatment way of 708M40 forged rings
Annealing
Heat the steel slowly to 680-700°C. Cool in air.
Hardening
This grade is commonly supplied ready heat treated. If further heat treatment is required annealed 708M40 should be heated slowly to 860-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.
Tempering
Heat the component carefully to a suitable temperature selected by reference to a tempering chart or table, soak at the temperature for two hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.
Mechanical properties of the 708M40 forged Raw Material
Yield Strength Mpa ≤ 16 diameter ≥900 16-40MM diameter ≥750 40-100MM diameter ≥650 100-160MM diameter ≥550 160-250MM diameter ≥500
Tensile Strength Mpa ≤ 16 diameter 1100-1300 16-40MM diameter 1000-1200,40-100MM diameter 900-1100,100-160MM diameter 800-950,160-250MM diameter 750-900
Elongation, % ≥10≤ 16 diameter≥11 16-40MM diameter 40-100MM diameter ≥12 100-160MM diameter ≥13 160-250MM diameter≥14
Reduction of area ,% ≤ 16 diameter≥40 16-40MM diameter ≥45 40-100MM diameter ≥50 100-160MM diameter≥50 160-250MM diameter≥55
TENSILE TESTS of 708M40 forged bars
One tensile test shall be performed for each tested QTC between 40°F and 120°F (4°C and 50°C). The test specimen and test method shall be in accordance with ASTM A370 or ISO 6892-1.
Tensile specimens shall be removed from the QTC such that their longitudinal centerline axis is wholly within the center core 1/4 T envelope for a solid QTC or within 1/8 inch (3 mm) of the mid-thickness of the thickest section of a hollow QTC. The tensile specimen gage length shall be at least 1/4 T from the ends of the QTC. When a sacrificial production component is used as the QTC, the tensile specimen shall be removed from a section of the part meeting the size requirements for a QTC for that part as defined in the QTC section. Examples of 1/4 T envelope determination are shown in clients document. For QTC s larger than the specified size the test specimens need not be removed from a location farther from the QTC surface than would be required if the specified QTC size was used.
Standard size ASTM A370 0.5 inch or 12.5 mm gage diameter tensile specimens shall be used. If the physical configuration of the QTC prevents the use of the standard size specimens, then standard sub-size specimens referenced in ASTM A370 may be used.
NON-DESTRUCTIVE EXAMINATION (NDE) of finished 708M40 ,EN19,709M40 forged sleeves
NDE personnel shall be qualified in accordance with requirements specified in ASNT Recommended Practice SNT-TC-1A or ISO 9712.
All NDE instructions shall be approved by an NDE Level III Examiner. For evaluation and interpretation, Level II certification is required as a minimum.
When required, volumetric NDE shall be performed on the material by the vendor unless specifically stated otherwise in the clients part description, in which case the material shall be capable of passing the NDE testing requirements. When testing is required, all examinations shall be performed after all heat treatment for properties exclusive of stress relief treatment or re-tempering to reduce hardness. The vendor shall send NDE test reports with the material test report. In all cases where test capable material is required the vendor need not include a statement of material capability, but must understand that the material will be so tested at clients after receipt. Failure of the material to pass NDE is grounds for rejection of the material.
Following is forging products of 708M40 ,EN19,709M40 material that is used in following industry
708M40 Forged Forging Sugar Mill Gear shafts,pinion shafts,roller shafts,flanges coupling
708M40 Cement Mill Rotary Kiln Forged Forging Steel case hardened ground Pinion Shafts
EN19 Forging Forging Steel mill gear pinion shafts
708M40 Forging wind turbine gearbox gear shafts,ring gears
EN19 forging forged locomotive transmission shafts
708M40 forging forged crane wheels
709M40 hydro turbine shafts
708M40 Forging gearbox,gear reducer gear wheels, pinion shafts,ring gears,
708M40 Forging crankshafts for gas compressor, mechanical presses,pump.
708M40 forging steel Spindles
709M40 Forging steel gear couplings
708M40 Forged Forging Rolled Steel Granulators driers coaters coolers Riding Gear Rings
708M40 Forged Forging Steel Cement Plant Pull Torque Rods
EN19 Forged Forging Steel Crusher Shaft eccentric shafts,Mining Mine rock Gyratory crusher Eccentric shafts Spindles,Crusher Belt Pulley Wheels.
709M40 Forged Forging Steel Mining Excavator Slewing Bearing Ball Races rings
708M40 Forged Forging Steel Oil Drilling Tools Gear Shaft Pinion Shafts
EN19 Forged Forging Steel helical gearing ground ship gearwheel Gear Wheels
708M40 Forged Forging Steel Dragline Drag Line Power Shovel Cam Swing Shafts Shafting Spindles,dragline CENTRE PINTLE
708M40 Forged Forging Steel Atomizer Shafts For Flue Gas Desulfurization scrubber Systems
708M40 Forged Forging Steel drilling rigs Mud pump herringbone gear shafts pinion shafts
708M40 Forging Forged Steel Thread Tie Rods
708M40 Forged Forging Steel Electric Shovel Shaft Couplings
708M40 Forged Forging Steel Granulator Gear Shafts
709M40 Conveyor Pulley Forging Forged Steel Shafts factory
EN19 Forged Forging Steel Hydraulic Honed Cylinders
708M40 Forged Forging Steel Mine hoist systems Equipment Shaft Shafting Spindles
708M40 Forged Forging Steel Rotary Dryer Trunnion Wheels
709M40 Forged Forging Forge Steel Cold Mill Decoiler Coiler Mandrel Drum Shafts
EN19 Forged Forging Steel bullgear Spider Gear Rims
709M40 Forged Forging Shovel SWING Rimmed GEARING Gear DRUM GEAR,SWING PROPEL Pinion SHAFTS
708M40 Forged Forging Steel Truck RING GEARS PLANET GEARS PINION SHAFTS
708M40 Forging Forge Steel Offshore subsea anchor winches Stub Shafts Spindles
709M40 Forged Forging Steel Seamless Hot rolled Truck concrete mixers semi-trailer bearings Rings
708M40 Forged Forging Steel Subsea oil gas drilling equipments Box Riser Joint
708M40 Forged Forging Railway locomotive Traction Motors end housings Rear End Shields
EN19 Forged Forging Steel Gas Steam Turbine Labyrinth seal bushing
708M40 Forged Forging Steel Gas Steam turbine generator air gap annular split baffle rings
708M40 Forged Forging Steels Christmas Trees wellhead Spool Body Bodies
708M40 Forged Forging forge Steel Gas Steam turbine Power generator Shafts
EN19 Forged Forging Gas Steam turbine Rotors Forward Stub Shafts Spindles
708M40 Forged Forging drilling tools,risers,connectors,flexible joint ,seals,flanges gasket factory
708M40 Forged Forging drilling tools,risers,connectors,flexible joint ,seals,flanges gasket
EN19 Forged Forging Steel gate valves Body Bodies bespoke flat bars
708M40 Forged Forging Steel double studded adapter flange
708M40 Forged Forging Steel Casing Heads,Tubing Heads,Casing Hangers,Tubing Hangers,Tubing Spools,Casing Spools,Spacer Spools
708M40 Forging/Forged Fracturing Mud Pump Fluid End ModuleForged/Forging Blowout Preventer RAM Annular Bop Body Bodies
708M40 Forged Forging Steel Pumping Equipment Eccentric Laterals Lateral Forgings
SNCM439 Forging Forged Steel shield TBM cutter Cutting Rings
708M40 Forging/Forged Steel Wellhead Christmas Tree Frac Head (Fracturing Head)
708M40 Forged Forging Steel drill head casings,collars,landing bowls
708M40 Forged Forging Forge Steel FLANGED BOSSES
709M40 Forged Forging Subsea Extrusions Oil Gas Inventory
708M40 Forged Forging Steel Annulus AWB/PWB wing blocks Body Bodies
708M40 Forged Forging Forge Steel Offshore subsea anchor winches Stub Shafts Spindles
708M40 Forged Forging Steel Lower Torque Hydro Master gate Frac valve Lower Master Valve Block Body Bodies
708M40 Forged Forging Oil field downhole drilling tool Mud Motor Drive shafts
708M40 Forged Forging Valve Balls,valve Bonnets,valve Body Bodies ,valve Stems,valve closures, valve seat rings, valve core, valve discs,for H type two way 2‐way one way back pressure valves, ball valve,check valve,gate valve
708M40 Forged Forging Steel Rotary Rock Drilling Tri-Cone Tricone Drill Bit cutter (PDC) Body Bodies factory
Forged Forging Steel Rotary Rock Drilling Tri-Cone Tricone Drill Bit cutter (PDC) Body Bodies
Welcome your inquiry of 708M40 ,EN19,709M40 forged parts
Following is the shape of 708M40 ,EN19,709M40 forging steel material that we could do is:708M40 Forged Steel round bars square bars Flat bars Rectangles Bars Rods,708M40 Forged forging steel rings seamless rolled rings,EN19 Forged Forging Steel Hubs housing shell Sleeves Bushes Bushing Cases Hollow Bars,708M40 forging forged steel shafts,gear,pinion shafts,spindles,gear wheel,EN19 Forged Forging Steel Discs Disks Blocks plates,708M40 Forged Forging Steel Pipe Tubes Tubings Piping Shells Casings Case barrels Housings.
708M40 ,EN19,709M40 is A versatile low alloy steel that possesses good tensile and shock resistance properties combined with ductility. Its resistance to wear can be considerably increased by flame hardening and it is also suitable for nitriding (for maximum wear and abrasion resistance). Bars are often supplied in the hardened and tempered condition with a tensile strength range of 850-1000N/mm2• The bars are readily machinable so that the components can be put into service without the cost of further treatment. Bars can also be supplied in the softened state which require hardening and tempering but will give increased machinability.
FOllowing is melting methods of 708M40 ,EN19,709M40 forged parts
1. Step 1- Basic EF
Step 2- Either Argon Oxygen Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD) or Vacuum Degrassing.
Step 3- Either Electroslag Remelting (ESR) or Electroflux Remelting (EFR) or Vacuum Arc Remelting (VAR).
Optional Step 4- Vacuum Arc Remelting (VAR)
OR
2. Step 1- Vacuum Induction Melting (VIM)
Step 2- Either Electroslag Remelting (ESR) or Electroflux Remelting (EFR) or Vacuum Arc Remelting (VAR).
Optional Step 3- Vacuum Are Remelting (VAR).
The minimum forging reduction ratio of 708M40 forged bars shall be 4:1, where the forging reduction ratio is defined as the product the area reduction ratio(s) for each hot working operation performed
Chemical composition of 708M40 forged parts
Carbon 0.36 – 0.44
Silicon 0.10 – 0.40
Manganese 0.70 – 1.00
Phosphorous 0.00 – 0.035
Sulphur 0.00 – 0.04
Chromium 0.90 – 1.20
Molybdenum 0.15 – 0.25
FOllowing is heat treatment way of 708M40 forged rings
Annealing
Heat the steel slowly to 680-700°C. Cool in air.
Hardening
This grade is commonly supplied ready heat treated. If further heat treatment is required annealed 708M40 should be heated slowly to 860-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.
Tempering
Heat the component carefully to a suitable temperature selected by reference to a tempering chart or table, soak at the temperature for two hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.
Mechanical properties of the 708M40 forged Raw Material
Yield Strength Mpa ≤ 16 diameter ≥900 16-40MM diameter ≥750 40-100MM diameter ≥650 100-160MM diameter ≥550 160-250MM diameter ≥500
Tensile Strength Mpa ≤ 16 diameter 1100-1300 16-40MM diameter 1000-1200,40-100MM diameter 900-1100,100-160MM diameter 800-950,160-250MM diameter 750-900
Elongation, % ≥10≤ 16 diameter≥11 16-40MM diameter 40-100MM diameter ≥12 100-160MM diameter ≥13 160-250MM diameter≥14
Reduction of area ,% ≤ 16 diameter≥40 16-40MM diameter ≥45 40-100MM diameter ≥50 100-160MM diameter≥50 160-250MM diameter≥55
TENSILE TESTS of 708M40 forged bars
One tensile test shall be performed for each tested QTC between 40°F and 120°F (4°C and 50°C). The test specimen and test method shall be in accordance with ASTM A370 or ISO 6892-1.
Tensile specimens shall be removed from the QTC such that their longitudinal centerline axis is wholly within the center core 1/4 T envelope for a solid QTC or within 1/8 inch (3 mm) of the mid-thickness of the thickest section of a hollow QTC. The tensile specimen gage length shall be at least 1/4 T from the ends of the QTC. When a sacrificial production component is used as the QTC, the tensile specimen shall be removed from a section of the part meeting the size requirements for a QTC for that part as defined in the QTC section. Examples of 1/4 T envelope determination are shown in clients document. For QTC s larger than the specified size the test specimens need not be removed from a location farther from the QTC surface than would be required if the specified QTC size was used.
Standard size ASTM A370 0.5 inch or 12.5 mm gage diameter tensile specimens shall be used. If the physical configuration of the QTC prevents the use of the standard size specimens, then standard sub-size specimens referenced in ASTM A370 may be used.
NON-DESTRUCTIVE EXAMINATION (NDE) of finished 708M40 ,EN19,709M40 forged sleeves
NDE personnel shall be qualified in accordance with requirements specified in ASNT Recommended Practice SNT-TC-1A or ISO 9712.
All NDE instructions shall be approved by an NDE Level III Examiner. For evaluation and interpretation, Level II certification is required as a minimum.
When required, volumetric NDE shall be performed on the material by the vendor unless specifically stated otherwise in the clients part description, in which case the material shall be capable of passing the NDE testing requirements. When testing is required, all examinations shall be performed after all heat treatment for properties exclusive of stress relief treatment or re-tempering to reduce hardness. The vendor shall send NDE test reports with the material test report. In all cases where test capable material is required the vendor need not include a statement of material capability, but must understand that the material will be so tested at clients after receipt. Failure of the material to pass NDE is grounds for rejection of the material.
Following is forging products of 708M40 ,EN19,709M40 material that is used in following industry
708M40 Forged Forging Sugar Mill Gear shafts,pinion shafts,roller shafts,flanges coupling
708M40 Cement Mill Rotary Kiln Forged Forging Steel case hardened ground Pinion Shafts
EN19 Forging Forging Steel mill gear pinion shafts
708M40 Forging wind turbine gearbox gear shafts,ring gears
EN19 forging forged locomotive transmission shafts
708M40 forging forged crane wheels
709M40 hydro turbine shafts
708M40 Forging gearbox,gear reducer gear wheels, pinion shafts,ring gears,
708M40 Forging crankshafts for gas compressor, mechanical presses,pump.
708M40 forging steel Spindles
709M40 Forging steel gear couplings
708M40 Forged Forging Rolled Steel Granulators driers coaters coolers Riding Gear Rings
708M40 Forged Forging Steel Cement Plant Pull Torque Rods
EN19 Forged Forging Steel Crusher Shaft eccentric shafts,Mining Mine rock Gyratory crusher Eccentric shafts Spindles,Crusher Belt Pulley Wheels.
709M40 Forged Forging Steel Mining Excavator Slewing Bearing Ball Races rings
708M40 Forged Forging Steel Oil Drilling Tools Gear Shaft Pinion Shafts
EN19 Forged Forging Steel helical gearing ground ship gearwheel Gear Wheels
708M40 Forged Forging Steel Dragline Drag Line Power Shovel Cam Swing Shafts Shafting Spindles,dragline CENTRE PINTLE
708M40 Forged Forging Steel Atomizer Shafts For Flue Gas Desulfurization scrubber Systems
708M40 Forged Forging Steel drilling rigs Mud pump herringbone gear shafts pinion shafts
708M40 Forging Forged Steel Thread Tie Rods
708M40 Forged Forging Steel Electric Shovel Shaft Couplings
708M40 Forged Forging Steel Granulator Gear Shafts
709M40 Conveyor Pulley Forging Forged Steel Shafts factory
EN19 Forged Forging Steel Hydraulic Honed Cylinders
708M40 Forged Forging Steel Mine hoist systems Equipment Shaft Shafting Spindles
708M40 Forged Forging Steel Rotary Dryer Trunnion Wheels
709M40 Forged Forging Forge Steel Cold Mill Decoiler Coiler Mandrel Drum Shafts
EN19 Forged Forging Steel bullgear Spider Gear Rims
709M40 Forged Forging Shovel SWING Rimmed GEARING Gear DRUM GEAR,SWING PROPEL Pinion SHAFTS
708M40 Forged Forging Steel Truck RING GEARS PLANET GEARS PINION SHAFTS
708M40 Forging Forge Steel Offshore subsea anchor winches Stub Shafts Spindles
709M40 Forged Forging Steel Seamless Hot rolled Truck concrete mixers semi-trailer bearings Rings
708M40 Forged Forging Steel Subsea oil gas drilling equipments Box Riser Joint
708M40 Forged Forging Railway locomotive Traction Motors end housings Rear End Shields
EN19 Forged Forging Steel Gas Steam Turbine Labyrinth seal bushing
708M40 Forged Forging Steel Gas Steam turbine generator air gap annular split baffle rings
708M40 Forged Forging Steels Christmas Trees wellhead Spool Body Bodies
708M40 Forged Forging forge Steel Gas Steam turbine Power generator Shafts
EN19 Forged Forging Gas Steam turbine Rotors Forward Stub Shafts Spindles
708M40 Forged Forging drilling tools,risers,connectors,flexible joint ,seals,flanges gasket factory
708M40 Forged Forging drilling tools,risers,connectors,flexible joint ,seals,flanges gasket
EN19 Forged Forging Steel gate valves Body Bodies bespoke flat bars
708M40 Forged Forging Steel double studded adapter flange
708M40 Forged Forging Steel Casing Heads,Tubing Heads,Casing Hangers,Tubing Hangers,Tubing Spools,Casing Spools,Spacer Spools
708M40 Forging/Forged Fracturing Mud Pump Fluid End ModuleForged/Forging Blowout Preventer RAM Annular Bop Body Bodies
708M40 Forged Forging Steel Pumping Equipment Eccentric Laterals Lateral Forgings
SNCM439 Forging Forged Steel shield TBM cutter Cutting Rings
708M40 Forging/Forged Steel Wellhead Christmas Tree Frac Head (Fracturing Head)
708M40 Forged Forging Steel drill head casings,collars,landing bowls
708M40 Forged Forging Forge Steel FLANGED BOSSES
709M40 Forged Forging Subsea Extrusions Oil Gas Inventory
708M40 Forged Forging Steel Annulus AWB/PWB wing blocks Body Bodies
708M40 Forged Forging Forge Steel Offshore subsea anchor winches Stub Shafts Spindles
708M40 Forged Forging Steel Lower Torque Hydro Master gate Frac valve Lower Master Valve Block Body Bodies
708M40 Forged Forging Oil field downhole drilling tool Mud Motor Drive shafts
708M40 Forged Forging Valve Balls,valve Bonnets,valve Body Bodies ,valve Stems,valve closures, valve seat rings, valve core, valve discs,for H type two way 2‐way one way back pressure valves, ball valve,check valve,gate valve
708M40 Forged Forging Steel Rotary Rock Drilling Tri-Cone Tricone Drill Bit cutter (PDC) Body Bodies factory
Forged Forging Steel Rotary Rock Drilling Tri-Cone Tricone Drill Bit cutter (PDC) Body Bodies
Welcome your inquiry of 708M40 ,EN19,709M40 forged parts
