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Cold Drawn Round Steel Rods Q235 1045 S45C C45 SCM440 40CR B7 42CRMO4 1144

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Address: 16-143, No. 26 Nankai Road Suofang Street, Xinwu Dist, Wuxi City

Contact name:Shawna

JIANGSU IRUNT STEEL GROUP CO., LTD.

Cold Drawn Round Steel Rods Q235 1045 S45C C45 SCM440 40CR B7 42CRMO4 1144

Country/Region	china
City & Province	wuxi

Product Details

Q235 1045 S45c C45 Scm440 40cr B7 42CrMo4 1144 Cold Finished Cold Drawn Bright Steel Round Bar

Cold drawn steel bar is made from special quality hot rolled steel bar. It is drawn through a die reducing the cross-sectional area of the bar and giving it a smooth surface.

Shapes: According to the shapes of the die, the finished product can get a round, hexagonal, square, flat and other cross section.
Advantage: Cold drawn bars have greater size accuracy, straightness and increased tensile and yield strength as well as improved machinability.
Further processing: In addition to standard cold drawn steel bars. It can also be polished or ground to get better surface.

1.Cold Drawn Steel Bar Processing:

Production line: 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.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.

3.Capabilities of our fatcory:

Shapes	Sizes	Processing
Steel Round Bar	5mm to 63.5mm	Cold Drawn
Steel Round Bar	63.5mm-120mm	smooth-turned and polished.
cold drawn steel square bar	55mm to 120120mm	Cold Drawn
cold drawn steel hex bar	5mm to 120mm	Cold Drawn
cold drawn steel hexagonal bar	5mm to 120mm(side to side)	Cold Drawn

4.Tolerances

NOMINAL SIZE DIAMETER mm	h8	h9	h10	h11
1 to 3	-0.014	-0.025	-0.04	-0.06
1 to 3	(-0.00055")	(-0.00098")	(-0.00158")	(-0.00236")
Over 3 to 6	-0.018	-0.03	-0.048	-0.075
Over 3 to 6	(-0.00071")	(-0.00118")	(-0.00189")	(-0.00295")
Over 6 to 10	-0.022	-0.036	-0.058	-0.09
Over 6 to 10	(-0.00086")	(-0.00142")	(-0.00228")	(-0.00354")
Over 10 to 18	-0.027	-0.043	-0.07	-0.11
Over 10 to 18	(-0.0001")	(-0.00169")	(-0.00275")	(-0.00433")
Over 18 to 30	-0.033	-0.052	-0.084	-0.13
Over 18 to 30	(-0.00129")	(-0.00205")	(-0.00331")	(-0.00512")
Over 30 to 50	-0.039	-0.062	-0.1	-0.16
Over 30 to 50	(-0.00153")	(-0.00244")	(-0.00393")	(-0.00630")
Over 50 to 80	-0.046	-0.074	-0.12	-0.19
Over 50 to 80	(-0.00181")	(-0.00291")	(-0.00472")	(-0.00748")
Over 80 to 120	-0.054	-0.087	-0.14	-0.22
Over 80 to 120	(-0.00213"	(-0.00343")	(-0.00551")	(-0.00866")
Over 80 to 120	-0.063	-0.1	-0.16	-0.25
Over 80 to 120	(-0.00248")	(-0.000393")	(-0.00629"	(-0.00984")

5.Our mian grades:

Cabon Steel	SAE 1018 , A36, SS400, S235JR ,Q235
	SAE 1020, S20C , 1.0402, 20GB, CK22
	SAE 1045 ,S45C, C45, CK45, EN8 ,1.1191
Alloy Steel	SAE 5120 , 20Cr, Scr 420H, 20Cr4
	SAE 5140 , 40Cr,SCr440, 520M40
	SAE 4130 , 30CrMo, SCM430, SCM420
	SAE 4140 , 42CrMo4, EN19, SCM440,708A42 ,708M40
	SAE 4340, 40CrNiMoA,871M40 , SNCM439
Free Cutting Steel	SAE 1215, 12L14, SUM22, SUM23 , 230M07, 1.0715, 11SMn30 , SUM43 , 1144

6.Advantages of cold drawn steel bar:
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.

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