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Hello visitor from
USA - 37 visiting from 25 USA 6 Singapore 5 UK 1 Australia
Aisi 4140 Alloy Steel Round Bar
Posted at: Offers to Sell and Export | Posted on: Friday 30 August 2013 9:54 am | Poster last visit: Friday 20 December 2013 |
Product Description:
4140 Alloy Steel Round Bar / 1.7225 Alloy Steel Rod
Description:
1.DIN1.7225 / SAE4140 / GB42CrMo
/ JIS SCM440 Alloy Steel Round Bar / Steel Rod
2.Hot rolled or forged condition, annealing or harden, black or milled surface
3.Pre-heat treatment:
Annealing : heat to 840-860°c, keep 2H, furnace cold, hardness≤217HBS
High temperature tempering : heat to 680-700°c, air cold, hardness ≤217HBS
4.Heat treatment:
l Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air.
l Stress relieving: after rough heat to 500 ° C, maintenance raff. In oven to 400 ° C, then in air.
l Hardening: preheating from 600 to 650 ° C austenitizing
at 840 to 880 ° C, quenching in oil.
l Tempering: heating to 550 - 650 ° C and maintenance regime, again depending on the mechanical properties
5. Hot rolled technology:EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
6.Ultrasonic test standard: SPE1921-GR3, CLASS C/C or D/D
7.Production leadtime: 7~10 days
8. Chemical composition:
C 0.17-0.23
Mn 0.30-0.60
Si 0.15-0.40
Cr 1.25-1.75
Ni 3.25-3.75
Cu ≤0.25
P ≤0.030
S ≤0.030
9.Compared grades(based on usage):
Chinese GB42CrMo
American AISI4140
German DIN1.7225
Japanese JIS SCM440
Specifications:
Hot rolled condition(mm)
16~255 *2000~5800
Forged condition
150~600*2500~4000
Local mill with 6000tons fluid forged machine
4140 Alloy Steel Applications:
l General service industries (petroleum, food, chemical, paper, fertilizer, Fabric, aviation and nuclear)
l Fluid, gas and oil transport
l Pressure and heat transmission
l Construction and ornament
l Boiler heat exchangers
Competitive Advantage:
l Good purity and homogeneity.
l Good machinability(Roughing, grinding and drilling).
l Good dimensional stability during heat treatment.
l Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.
l Competitive price
l Fast production leadtime
l All the material are inspected with 3 times to meet the highly standards
Our Main products:
DongGuan RuiYuan Steel Co., Ltd Specializes in plastic mould steel, hot work mould steel, cold work mould steel alloy steel and carbon structural steel, such as : P20, P20+Ni, 1.2714, 1.2083, 1.2316, H13, O1, D2, D3, D5, 1045, 1050, A3, 52100(EN31), 4137, 4140, 4340, 5140, 6150, 8620 and SCM420 for exporting over 20 countries now, such as: Brazil, India, Turkey, Italy, Germany, Korea, Malaysia, Iran and so on.
Company Contact:
Contact Name: Mr.jason Liu
Company Name: Dongguan Ruiyuan Steel Co., Ltd
Email:
Tel: +8618819098370
Fax: 86-0769-89026617
Street Address: 2nd Floor, Sihai
Commercial Building, Jinghai Road,
Chanan Town
Dongguan, Guangdong 523850
China
Website: https://www.plasticmoldsteel.com
Member name: RuiYuanSteelExport
Country:
China
Member Since: 09 May 2013
Total Leads: 52 RuiYuanSteelExport Import Export Business Leads
Business focus: Steel Plate, Special Steel, Mould Steel, Die Steel, Carbon Steel, Alloy Steel, Hot Rolled Steel, Forging Steel, Tool Steel, Steel Round Bar, Plastic Mou
Chat:
Verify: Safe Import Export Tips
Description:
1.DIN1.7225 / SAE4140 / GB42CrMo
/ JIS SCM440 Alloy Steel Round Bar / Steel Rod
2.Hot rolled or forged condition, annealing or harden, black or milled surface
3.Pre-heat treatment:
Annealing : heat to 840-860°c, keep 2H, furnace cold, hardness≤217HBS
High temperature tempering : heat to 680-700°c, air cold, hardness ≤217HBS
4.Heat treatment:
l Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air.
l Stress relieving: after rough heat to 500 ° C, maintenance raff. In oven to 400 ° C, then in air.
l Hardening: preheating from 600 to 650 ° C austenitizing
at 840 to 880 ° C, quenching in oil.
l Tempering: heating to 550 - 650 ° C and maintenance regime, again depending on the mechanical properties
5. Hot rolled technology:EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
6.Ultrasonic test standard: SPE1921-GR3, CLASS C/C or D/D
7.Production leadtime: 7~10 days
8. Chemical composition:
C 0.17-0.23
Mn 0.30-0.60
Si 0.15-0.40
Cr 1.25-1.75
Ni 3.25-3.75
Cu ≤0.25
P ≤0.030
S ≤0.030
9.Compared grades(based on usage):
Chinese GB42CrMo
American AISI4140
German DIN1.7225
Japanese JIS SCM440
Specifications:
Hot rolled condition(mm)
16~255 *2000~5800
Forged condition
150~600*2500~4000
Local mill with 6000tons fluid forged machine
4140 Alloy Steel Applications:
l General service industries (petroleum, food, chemical, paper, fertilizer, Fabric, aviation and nuclear)
l Fluid, gas and oil transport
l Pressure and heat transmission
l Construction and ornament
l Boiler heat exchangers
Competitive Advantage:
l Good purity and homogeneity.
l Good machinability(Roughing, grinding and drilling).
l Good dimensional stability during heat treatment.
l Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.
l Competitive price
l Fast production leadtime
l All the material are inspected with 3 times to meet the highly standards
Our Main products:
DongGuan RuiYuan Steel Co., Ltd Specializes in plastic mould steel, hot work mould steel, cold work mould steel alloy steel and carbon structural steel, such as : P20, P20+Ni, 1.2714, 1.2083, 1.2316, H13, O1, D2, D3, D5, 1045, 1050, A3, 52100(EN31), 4137, 4140, 4340, 5140, 6150, 8620 and SCM420 for exporting over 20 countries now, such as: Brazil, India, Turkey, Italy, Germany, Korea, Malaysia, Iran and so on.
Company Contact:
Contact Name: Mr.jason Liu
Company Name: Dongguan Ruiyuan Steel Co., Ltd
Email:
Tel: +8618819098370
Fax: 86-0769-89026617
Street Address: 2nd Floor, Sihai
Commercial Building, Jinghai Road,
Chanan Town
Dongguan, Guangdong 523850
China
Website: https://www.plasticmoldsteel.com
Member name: RuiYuanSteelExport
Country:
ChinaMember Since: 09 May 2013
Total Leads: 52 RuiYuanSteelExport Import Export Business Leads
Business focus: Steel Plate, Special Steel, Mould Steel, Die Steel, Carbon Steel, Alloy Steel, Hot Rolled Steel, Forging Steel, Tool Steel, Steel Round Bar, Plastic Mou
Chat:
Verify: Safe Import Export Tips
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