Structural Steel Round Bar Q+T Forged Cold Drawn 4140 1.7225 42CrMo4 SCM440 4340 1.6582 34CrNiMo6 8620 8640 20MnCr5 Alloy Steel for Shaft Connecting Rod Gear

• Type: Alloy Steel
• Standard: AISI, ASTM, DIN, JIS
• Composition: Check Detailed Description
• Technique: Hot Rolled, Forged
• Shape: Bar
• Surface Treatment: Customization
• Model NO.: 4140/1.7225/42CrMo4/SCM440/4340/1.6582/34CrNiMo6
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: shaft, gear, connecting rod
• Delivery Condition: Annealing, Pre hardened
• Alloy or Not: Alloy
• Stock: Abundant
• Tolerance: +/- 1%
• Transport Package: Customization
• Specification: Customization
• Trademark: Ningbo Ningshing
• Origin: China
• Production Capacity: 10000 Tons/Year

Product Description

Structural Steel Round Bar Q+T Forged Cold Drawn 4140/1.7225/42CrMo4/SCM440/4340/1.6582/34CrNiMo6/8620/8640/20MnCr5 Alloy Steel for Shaft/Connecting Rod/Gear

 

Product Description

Ningshing Precision Machinery began in 1992. We devote oneself to providing One-Stop Solutions to our customers on Tool Steel, Die Steel, Alloy Steel, Mold Base, Machining Parts, CNC Machine.

Dimensions

Round	Flat	Block
Ø10-800 mm	6-120 x 40-1200 mm	80-700 x 100-1200 mm

Delivery Condition

EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤255HB, Black surface or Machined surface, UT SEP1921 Class3 D/d.
 

Chemical Compostion (%)

Steel Grade	C	Si	Mn	P	S	Cr	Mo
4140	0.38-0.43	0.15-0.35	0.75-1.00	≤ 0.035	≤ 0.040	0.80-1.10	0.15-0.25
1.7225	0.38-0.45	≤ 0.40	0.60-0.90	≤ 0.035	≤ 0.035	0.90-1.20	0.15-0.30
42CrMo4
SCM440	0.38-0.43	0.15-0.35	0.60-0.85	≤ 0.035	≤ 0.040	0.90-1.20	0.15-0.30
4340	0.38-0.43	0.15-0.35	0.60-0.80	≤0.035	≤0.040	0.70-0.90	0.20-0.30
1.6582	0.30-0.38	≤0.40	0.50-0.80	≤0.035	≤0.035	1.30-1.70	0.15-0.30
34CrNiMo6
8620	0.18-0.23	0.15-0.35	0.70-0.90	≤0.035	≤0.040	0.40-0.60	0.15-0.25
8640	0.38-0.43	0.15-0.35	0.75-1.00	≤0.035	≤0.040	0.40-0.60	0.15-0.25
20MnCr5	0.17-0.22	≤0.40	1.10-1.40	≤0.035	≤0.035	1.00-1.30	-

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