4140 Scm440 42CrMo4 Cold Drawn Steel Bar Round / Square / Hexagon Bar

• Standard: AISI, JIS, ASTM, DIN, BS, GB
• Certification: ABS, RoHS
• Technique: Cold Drawn
• Surface Treatment: Bright
• Alloy: Non-alloy
• Tolerance: H9 H10 H11
• Model NO.: 4140 SCM440 42CrMo4
• Surface: Cold Drawn Bright
• Shapes: Round, Square, Hex
• MOQ: 1ton
• Transport Package: Anti-Rust Packing
• Specification: 0.5mm-100mm
• Origin: China
• Production Capacity: 3000tons/Month

Product Description

4140 SCM440 42CrMo4 Cold Drawn Steel Bar Round/Square/Hexagon Bar

1.Processing for Cold Drawn Steel Bars
hot rolled bars/wire rods - (spheroidizing annealed for alloy steel/bearing steel) - pickling - cleaning - saponifing - cold drawn - (softening annealed for alloy steel/bearing steel) - cutting - bundling - packing - finished products

2.The advantages of Cold Drawn Steel Bars
1.It can remove the Size and Section which provides Tighter tolerances which Reduces machining losses.
2.It can remove the  Steel Surface Finish which Reduces surface machining & improves quality.
3.It can remove the  Straightness which Facilitates automatic bar feeding in CNC.
4.It can increase the Mechanical Properties which Can reduce the need for hardening.
5.It can improve the Machinability and Productivity which Enables higher machining feeds, high tool life, yield & speeds and improved machined finish.

3.AISI 4140 Equivalent and chemical composition

Standard	Grade	C	Si	Mn	P	S	Cr	Mo
ASTM A29	4140	0.38-0.43	0.15-0.35	0.75-1.00	≤ 0.035	≤ 0.04	0.8-1.1	0.15-0.25
	42CrMo4	0.38-0.45	≤ 0.4	0.6-0.90	≤ 0.025	≤ 0.035	0.9-1.2	0.15-0.30
EN10083	1.7225
JIS G4105	SCM440	0.38-0.43	0.15-0.35	0.6-0.85	≤ 0.035	≤ 0.04	0.9-1.2	0.15-0.30
GB 3077	42CrMo	0.38-0.45	0.17-0.37	0.5-0.80	≤ 0.035	≤ 0.035	0.9-1.2	0.15-0.25
BS 970	EN19	0.35-0.45	0.15-0.35	0.5-0.80	≤ 0.035	≤ 0.035	0.9-1.5	0.2-0.40

4.Sizes we can offer for cold drawn steel bars

Shapes	Sizes
cold drawn steel round bar	5mm to 120mm
cold drawn steel square bar	5*5mm to 120*120mm
cold drawn steel hex bar	5mm to 120mm
cold drawn steel hexagonal bar
	5mm to 80mm(side to side)

5.MOQ:1ton per size
6.Delivery time : usually, 7-10 days for stocks, and one month for new production.
7.Payment term:TT or LC
8.Cold Drawn Steel Bar Packing : Rusty proof packages. Anti rusty oil painting, film wrapped inside and Nylon plastic bags wrapped outside

9.Applications for cold drawn steel bars:
Alternator Shafts, BearingsCoil, SpringsConcrete, Accessories ,Electric Motor Shafts,Fasteners,Forging Applications,Hand Tools,Hydraulic Hose Fittings,MacPherson Strut Shafts,Oil Pump Shafts,Precision Machined Parts,Printer Shafts,Roller Conveyor Axles,Shock Absorber Shafts,Shotgun & Rifle Barrels,Stabilizer Bars,Starter Motor Shafts,Steering LinkagesTransmission Shafts,Vehicle Axles,Water Pump Shafts,Wheel Spindles etc

10.Tolerance for cold drawn steel bars: h8 

Size In mm	Tolerance In mm
	h8	h9	h10	h11
6-10	0/-0.022	0/-0.036	0/-0.058	0/-0.090
10-18	0/-0.027	0/-0.043	0/-0.070	0/-0.110
18-30	0/-0.033	0/-0.052	0/-0.084	0/-0.130
30-50	0/-0.039	0/-0.062	0/-0.100	0/-0.160
50-100	0/-0.046	0/-0.074	0/-0.120	0/-0.190