Good Hardenability AISI 4340 / GB40CrNiMo / DIN 1.6511 Alloy Steel Round Bar
Description:
1. AISI 4340/GB40CrNiMo/DIN 1.6511 alloy steel round bar
2.Hot rolled or forged condition, annealing , black or milled surface
3.Hardness: ≤220HBS ;
4 Hot rolled technology:EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
5.Ultrasonic test standard: SPE1921-GR3, CLASS D/D or E/E
6.Production leadtime: 7~10 days
7. Chemical composition:
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C
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Si
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Mn
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S
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P
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Cr
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Ni
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Mo
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|
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0.37~0.44
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0.17-0.37
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0.5~0.8
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≤0.025
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≤0.018
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0.6~0.9
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1.25~1.65
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0.15~0.25
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|
8.Compared grades(based on usage):
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Chinese
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American
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German
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GB
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AISI
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DIN
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40CrNiMo
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4340
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1.6511
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Applications:
40CrNiMo ALLOY STEEL Used for manufacture big sized important QuenchedandTempered parts which request good toughness and
high strength.such as top load shaft in heavy-duty machinery.
40CrNiMo ALLOY STEEL Used for steam turbine shaft, vane, and heavy-load transmission parts, fastening piece, crankshaft, gears etc with diameter is biger than 250mm.
Competitive Advantage:
- High strength,
- High tenacity
- Good hardenability
- High resistance to thermal properties.
- Competitive price
- Fast production leadtime
- All the material are inspected with 3 times to meet the highly standards
Specifications:
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Hot rolled condition
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Steel plate(mm)
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Mill name
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|
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Diameter
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Length
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|
|
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¢16~¢205
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2000~5800
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Dongbei,XiNing, BengGang, ShouGang steel
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Forged condition
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¢150~¢600
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2500~4000
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Local mill with 6000tons fluid forged machine
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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.