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Model Number: hot forged steel bar -03
Brand Name: Unite Steel
Key Specifications/Special Features:
Forged steel bar Q+T 4340Standards: AISI 4340 8620 8640 4320, JIS SNCM8 GB: 40CrNiMoASpecification: diameterof 80-800mm, lengthof 2000-13000mm or as requiredProcess: EAF+LF+VD (necessary) UT+ peeled +turned + heat treatment (optional)Heat treatment: annealed, quenched & tempered, normalized
Machine capability
Tensile strength (N/mm2Mpa): >=980(100)
Elongation: >=12
Yield strength: >=835(85)
Hardness: HBS (100/3000)<=269
Reduction of area: >=55
Akv(J)>=78 akv(J/cm2): >=98(10)
Chemical composition (%):
Inspection: 100% ultrasonic according to the test standards: SEP1921-84, GR.3 CLASS C/C
Packing situation: standard seaworthy packing or as customerrequired
Delivery time: 30 days after order confirmed
Payment terms: T/T or L/C at sight.
Application: components for the aircraft, automotive and general engineering industries, propeller shafts, connecting rods, gear shafts, and other automobile parts, heavy forgings, rotors, shafts, discs
- Carbon 0.37-0.44
- Silicon 0.17-0.37
- Manganese 0.50-0.80
- Phosphorus 0.04 maximum
- Sulphur 0.04 maximum
- Chromium 0.60-0.90
- Molybdenum 0.15-0.25
- Nickel 1.25-1.85
Shipping Information:
- FOB Port: Shanghai
- Lead Time: 10 - 45 days
Main Export Markets:
- Asia
- Australasia
- Central/South America
- Eastern Europe
- Mid East/Africa
- North America