S20C C22 1020 A36 Cold Drawn Steel Round Bars / cold rolled steel rod
Cold Drawn Steel Round Bar -Cold Drawn Steel Square Bar - Cold Drawn Steel Hexagonal Bar
1.Cold Drawn Steel Bar Processing:
EAF + LF + VD + CONCASTING BILLETS + HOT ROLLED + SHOT BLASTING +(ANNEALING) + COLD DRAWN + OILING + BUNDLING + BOTH ENDS CUTTING+ PACKING + MARKING
2.AISI 1020 / SAE 1020 chemical composition
| C |
Si |
Mn |
S(≤) |
P(≤) |
Cr(≤) |
Ni(≤) |
| 0.17-0.23 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.3 |
.3.AISI 1020 / SAE 1020 equivalent grade
| GB |
ASTM |
JIS |
DIN |
BS |
NF |
| 20# |
1020 |
S20C/S22C |
C22 |
IC22 |
C22 |
4.AISI 1020 / SAE 1020 physical property (hot rolled)
| Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elongation |
Shrinkage |
| 410 |
245 |
25 |
55 |
5.Cold drawn steel bar supplied sizes:
| Process |
Size offer range (inches) |
Size offer range (mm) |
| Cold Drawing |
Round Sizes |
0.235 - 4.700″ |
5-120 |
| Hexagon Sizes |
0.235 - 3.000″ |
5-75 |
| Square Sizes |
0.235 - 4.700″ |
5-120 |
| Special Sections |
Please RFQ |
Please RFQ |
| Annual Capacity |
30,000 Tons |
30,000 Tons |
| Turning & Polishing |
Sizes |
0.600-4.700'' |
15-120 |
| Annual Capacity |
50,000 Tons |
50,000 Tons |
6.Tolerance controled:
| NOMINAL SIZE DIAMETER mm |
h9 |
h10 |
h11 |
| 1 to 3 |
-0.025 |
-0.04 |
-0.06 |
| (-0.00098") |
(-0.00158") |
(-0.00236") |
| Over 3 to 6 |
-0.03 |
-0.048 |
-0.075 |
| (-0.00118") |
(-0.00189") |
(-0.00295") |
| Over 6 to 10 |
-0.036 |
-0.058 |
-0.09 |
| (-0.00142") |
(-0.00228") |
(-0.00354") |
| Over 10 to 18 |
-0.043 |
-0.07 |
-0.11 |
| (-0.00169") |
(-0.00275") |
(-0.00433") |
| Over 18 to 30 |
-0.052 |
-0.084 |
-0.13 |
| (-0.00205") |
(-0.00331") |
(-0.00512") |
| Over 30 to 50 |
-0.062 |
-0.1 |
-0.16 |
| (-0.00244") |
(-0.00393") |
(-0.00630") |
| Over 50 to 80 |
-0.074 |
-0.12 |
-0.19 |
| (-0.00291") |
(-0.00472") |
(-0.00748") |
| Over 80 to 120 |
-0.087 |
-0.14 |
-0.22 |
| (-0.00343") |
(-0.00551") |
(-0.00866") |
7.Application of cold drawn steel bar:
Hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles, cars, motorcycles, textile machinery, transformers and other machinery industry etc
8.Straightness of our cold drawn steel bars: Max 0.5mm/m
9.Advantages of cold drawn processing:
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.
10.Packing of cold drawn steel bars:
a. Surface put anti-rust oil
b.Plastic firm rapped
c.Woven cloth outside to make bundle weight 1000kg or as required
d.Put label on each bundle, including: heat number, size, length, quantity in pcs and weight, origin etc.
e. Other way of packing to be discussed
11.Payment term: TT, LC
12.Quality inspection:
Size tolerance, Surface check, Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test and so on.
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