Shanghai Unite Steel Trading Co., Ltd.

Model Number: hot forged steel bar -33 Brand Name: Unite Steel Key Specifications/Special Features: Round steel bar, EN 24Applications:Components for the aircraft, automotive, general engineering industries, propeller shafts, connecting rods, gear shafts, and other automobile parts, heavy forgings, rotors, shafts, discsPulley shafts, gears, pins and axles, heavy-duty axles, shafts, heavy duty gears, spindles, pins, studs, collets, bolts, couplings, sprockets, pinions, torsion bars, connecting rods, crow bars, conveyor partsUsed where higher yield and tensile strength than 4140 is required

Related specifications:

• Australia: AS 1444-2007 4340
• Germany: WNr 1.6565 34CrNiMo6
• Great Britain: BS970 1955 EN24
• BS970 Part: 3:1991 817M40
• BS EN10083: 1-1991 817M40
• USA: ASTM/A29A29M/1991/4340
• ASTM A322 4340
• SAE: 4340
• UNS G43400
• Japan: JIS G 4103 SNCM439/JIS G 4103 SNCM8
• Work staff: 1.6565 40NiCrMo6

Chemical composition(%):

• 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
• Process:EAF + LF + VD + forged + heat treatment (optional)

Size range:

• Round:
  • Hot forged:80-1200mm

Surface finishes:

• Black, peeled K12, cold drawn, turned and polished H10, H11, precision ground H9, H8

Color code:blue end

Test:ultrasonic test according to SEP 1921-84 3cc