Scm440 Cold Drawn Bright Steel Round Bar

• Customization: Available
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Model NO.: Scm440 Cold Drawn Bright Steel Round Bar
• Technique: Cold Drawn
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Cold Drawn Bright
• Alloy: Alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Surface: Bright
• Tolerance: H9 or Better
• Shape: Round, Square, Hexagonal
• MOQ: 2tons
• Grade: 4140 En19 Scm440 42CrMoA 42CrMo4
• Transport Package: Anti-Rust Packing
• Specification: M5-M100
• Origin: China
• Production Capacity: 3000tons/Month

Product Description

Scm440 Cold Drawn Bright Steel Round Bar

SCM440 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. 

4140/ SCM440/ 42CrMo4(1.7225) alloy steel bar is a medium carbon, chromium-molybdenum, through-hardening alloy steel that has a good hardenability with high strength and toughness as well as good fatigue and impact resistance after heat treating.

We can supply SCM440 Cold Drawn Steel Round Bar, SCM440 Cold Drawn Steel Square Bar, SCM440 Cold Drawn Steel Hexagonal Bars. 
 

Cold finished bars are produced from special bar quality hot rolled bars by cold drawing, turning, grinding, polishing, or by a combination of these methods.

Cold drawing increases a bar's yield strength and tensile strength, turning improves surface quality, grinding produces more precise tolerance ranges, and polishing further creates a smooth and attractive surface. Overall, cold finishing reduces the cross sectional area of the hot rolled bar. CF steel bars may be harder to work with than their hot rolled equivalents, but they make up for it with more accurate sizes, smooth surfaces, increased mechanical properties and machinability.

Scm440 Cold Drawn Bright Steel Round Bar
 

1.Size we offered for SCM440 Cold Drawn Steel Bars

Shapes	Sizes
cold drawn steel round bar	3mm to 100mm
cold drawn steel square bar	3*3mm to 100*100mm
cold drawn steel flat bar	(6mm to 60mm)*(60mm to 100mm)
cold drawn steel hexagonal bar	19mm to 70mm(side to side)

 
2. Cold Drawn Steel Bar Processing: EAF + LF + VD + CONCASTING BILLETS + HOT ROLLED + PICKLING/PEELING +(ANNEALING) + COLD DRAWN + OILING + BUNDLING + BOTH ENDS CUTTING+ PACKING + MARKING
 
3.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.Tolerance for cold drawn steel bar:h9 or better
5.Application: hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles, cars, motorcycles, textile machinery, transformers and other machinery industry.

6.Advantages of our 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.

42CrMo4 QT Shaft 4140 Steel Shaft Roller Shaft
Steel Shaft 4140 equivalent steel
4140/42CrMo/1.7225 forged steel shaft 
4140 alloy steel/1.4140 steel/aisi 4140 shaft
SCM440 EN19 Cold Drawn Bright Steel Shaft
42CrMo4 QT Shaft 4140 Steel Shaft Roller Shaft
Steel Shaft 4140 equivalent steel
4140/42CrMo/1.7225 forged steel shaft 
4140 alloy steel/1.4140 steel/aisi 4140 shaft