Description
Jiangsu Liangyi is professional manufacturer of 1.2714,55NiCrMoV.7,55NiCrMoV7,55 NiCrMo V7 open die forging parts and seamless rolled steel forged rings from china
Following is the shape of 1.2714,55NiCrMoV.7,55NiCrMoV7,55 NiCrMo V7 forging steel material that we could do is:55 NiCrMo V7 Forged Steel round bars square bars Flat bars Rectangles Bars Rods,55 NiCrMo V7 Forged forging steel rings seamless rolled rings,1.2714 Forged Forging Steel Hubs housing shell Sleeves Bushes Bushing Cases Hollow Bars,55 NiCrMo V7 forging forged steel shafts,gear,pinion shafts,spindles,gear wheel,1.2714 Forged Forging Steel Discs Disks Blocks plates,55 NiCrMo V7 Forged Forging Steel Pipe Tubes Tubings Piping Shells Casings Case barrels Housings.
1.2714 is Hot work steel or die steel (oil- and air-hardening steels) with good toughness, through hardenability and high compressive strength.
1.2714 is widely used hot forming tools, hot shear blades, extrusion tools, punches, tools for forging machines, tool holders, die holders.Plastic injection or compression mould cores and cavities, large - size moulds with high quality finish, compression,dies under high mechanical and thermal stresses.
FOllowing is melting methods for all 1.2714,55 NiCrMo V7 forged material as per client choices
1 EAF: Electric Arc Furnace
2 EAF+LF+VD: Refined-smelting and vacuum degassing
3 EAF+ESR: Electro Slag Remelting
4 EAF+PESR: protective atmosphere Electro Slag Remelting
5 VIM+PESR: Vacuum induction melting
Chemical Composition of 55NiCrMoV7 forged shafts
C 0.5 - 0.6
Si 0.1 - 0.4
Mn 0.6 - 0.9
Ni 1.5 - 1.8
P max 0.03
S max 0.03
Cr 0.8 - 1.2
Mo 0.35 - 0.55
V 0.05 - 0.15
Following is heat treatment way of 1.2714 forged bars
Soft Annealing
Heat to 650-700o
C, cool slowly in furnace. This will produce a maximum Brinell hardness of 248.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650o
C, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Oil: Harden from a temperature of 830-870o
C followed by oil quenching. Hardness after quenching is 58 HRC.
Air: Harden from a temperature of 830-900o
C followed by air quenching. Hardness after quenching is 56 HRC.
Mechanical Properties of the Raw Material of 55 NiCrMo V7 forging gear shafts
Softened delivery condition - hardness: <248 HB
Hardness after tempering at a temperature:
300℃ = ~54 HRC
350℃ = ~52 HRC
400℃ = ~51 HRC
450℃ = ~50 HRC
500℃ = ~49 HRC
550℃ = ~48 HRC
600℃ = ~46 HRC
All 1.2714 forged flat bars are ultrasonically tested, according to ASTM A578 - S9 specification.
Grain size Uniform 7/8 grain size according to ASTM E 112 method.
FOllowing is inspection standard of 55 NiCrMo V7 Forged steel material
ASTM E 8 Tension Testing of Metallic Materials
ASTM E 8M Tension Testing of Metallic Materials (Metric)
ASTM E 10 Brinell Hardness of Metallic Materials
ASTME 139 Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
ASTM E 292 Conducting Time-for-Rupture Notch Tension Tests of Materials
For our finished production of 1.2714,55NiCrMoV.7 forged steel bars should have following inspection report
Identification number, material number and designation, order number, drawing number,
Specification Number;
- Heat number, heat chemical analysis, melting method and product chemical analysis;
- Certificate of heat treatment including method of cooling, actual part temperature, holding
time, cooling condition and all re-heat-treatments by complete graphic temperature time;
- Nondestructive testing records,
- Results of all Mechanical Tests,
-Results of residual stress measurements (for process qualification),
- All probable deviation reports,
- Certification of NDT inspector,
- Dimensional and visual inspection report,
- Cleaning Verified
Welcome your inquiry of 1.2714,55NiCrMoV.7,55NiCrMoV7,55 NiCrMo V7 forging parts
Following is the shape of 1.2714,55NiCrMoV.7,55NiCrMoV7,55 NiCrMo V7 forging steel material that we could do is:55 NiCrMo V7 Forged Steel round bars square bars Flat bars Rectangles Bars Rods,55 NiCrMo V7 Forged forging steel rings seamless rolled rings,1.2714 Forged Forging Steel Hubs housing shell Sleeves Bushes Bushing Cases Hollow Bars,55 NiCrMo V7 forging forged steel shafts,gear,pinion shafts,spindles,gear wheel,1.2714 Forged Forging Steel Discs Disks Blocks plates,55 NiCrMo V7 Forged Forging Steel Pipe Tubes Tubings Piping Shells Casings Case barrels Housings.
1.2714 is Hot work steel or die steel (oil- and air-hardening steels) with good toughness, through hardenability and high compressive strength.
1.2714 is widely used hot forming tools, hot shear blades, extrusion tools, punches, tools for forging machines, tool holders, die holders.Plastic injection or compression mould cores and cavities, large - size moulds with high quality finish, compression,dies under high mechanical and thermal stresses.
FOllowing is melting methods for all 1.2714,55 NiCrMo V7 forged material as per client choices
1 EAF: Electric Arc Furnace
2 EAF+LF+VD: Refined-smelting and vacuum degassing
3 EAF+ESR: Electro Slag Remelting
4 EAF+PESR: protective atmosphere Electro Slag Remelting
5 VIM+PESR: Vacuum induction melting
Chemical Composition of 55NiCrMoV7 forged shafts
C 0.5 - 0.6
Si 0.1 - 0.4
Mn 0.6 - 0.9
Ni 1.5 - 1.8
P max 0.03
S max 0.03
Cr 0.8 - 1.2
Mo 0.35 - 0.55
V 0.05 - 0.15
Following is heat treatment way of 1.2714 forged bars
Soft Annealing
Heat to 650-700o
C, cool slowly in furnace. This will produce a maximum Brinell hardness of 248.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650o
C, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Oil: Harden from a temperature of 830-870o
C followed by oil quenching. Hardness after quenching is 58 HRC.
Air: Harden from a temperature of 830-900o
C followed by air quenching. Hardness after quenching is 56 HRC.
Mechanical Properties of the Raw Material of 55 NiCrMo V7 forging gear shafts
Softened delivery condition - hardness: <248 HB
Hardness after tempering at a temperature:
300℃ = ~54 HRC
350℃ = ~52 HRC
400℃ = ~51 HRC
450℃ = ~50 HRC
500℃ = ~49 HRC
550℃ = ~48 HRC
600℃ = ~46 HRC
All 1.2714 forged flat bars are ultrasonically tested, according to ASTM A578 - S9 specification.
Grain size Uniform 7/8 grain size according to ASTM E 112 method.
FOllowing is inspection standard of 55 NiCrMo V7 Forged steel material
ASTM E 8 Tension Testing of Metallic Materials
ASTM E 8M Tension Testing of Metallic Materials (Metric)
ASTM E 10 Brinell Hardness of Metallic Materials
ASTME 139 Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
ASTM E 292 Conducting Time-for-Rupture Notch Tension Tests of Materials
For our finished production of 1.2714,55NiCrMoV.7 forged steel bars should have following inspection report
Identification number, material number and designation, order number, drawing number,
Specification Number;
- Heat number, heat chemical analysis, melting method and product chemical analysis;
- Certificate of heat treatment including method of cooling, actual part temperature, holding
time, cooling condition and all re-heat-treatments by complete graphic temperature time;
- Nondestructive testing records,
- Results of all Mechanical Tests,
-Results of residual stress measurements (for process qualification),
- All probable deviation reports,
- Certification of NDT inspector,
- Dimensional and visual inspection report,
- Cleaning Verified
Welcome your inquiry of 1.2714,55NiCrMoV.7,55NiCrMoV7,55 NiCrMo V7 forging parts
