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Cold Drawn Bar is a long product processed
by drawing,
cutting and straightening hot rolled wire rod
|
Application
- Machinery components, Automotive components, Electronic parts
Type of CD Bar and Mechanical Properties
| Description |
Tensile Strength (kgf/mm 2) |
Hardness (HRB) |
Remarks |
| Rolled Steel
for General Structure |
45~ |
70~ |
SS330, SS400,
SS490, SS540 |
|
| Machinery
Structural Carbon Steel |
~S25C |
50~ |
75~ |
S10C, S12C,
S15C, S17C, S20C, S25C |
| 30C~ |
60~ |
85~ |
S30C, S35C,
S38C, S40C, S45C(S) |
|
| Free Cutting
Steel |
45~ |
70~ |
SUM21, SUM22,
SUM24L, SUM31 |
|
Alloy Steel |
Non-Annealing
|
58~ |
80~ |
SCr415, SCM415,
SUM31 |
| Annealing |
60~ |
85~ |
SCr435, SCM440,
AISI4140 |
| Spring Steel
|
70~ |
90~ |
SUP
7, 9, 10, 12, SAE9254, 500CrV4 |
| Bearing Steel
|
70~ |
90~ |
SUJ
1, 2, 3, 4, 5 |
|
Stainless Steel |
304 |
55
~ |
85
~ |
STS
304M, 304HC, 304CS, 304L, T304 |
| 316 |
55
~ |
85
~ |
STS
316, 316L, T316, T316L |
| 303 |
65
~ |
90
~ |
STS
303, 303F, 303C, T303, T303F |
| 400 |
60
~ |
87
~ |
STS
410, 416, 420J2, 420F |
Diameter Tolerance
|
Diameter(mm)
|
h7
|
h8
|
h9
|
h10
|
h11
|
h12
|
|
~ 3.0
|
0
- 0.010
|
0
- 0.014
|
0
- 0.025
|
0
- 0.040
|
0
- 0.060
|
0
- 0.10
|
|
3.0 ~ 6,0
|
0
- 0.012
|
0
- 0.018
|
0
- 0.030
|
0
- 0.048
|
0
- 0.075
|
0
- 0.12
|
|
6.0 ~ 10.0
|
0
- 0.015
|
0
- 0.022
|
0
- 0.036
|
0
- 0.058
|
0
- 0.090
|
0
- 0.15
|
|
10.0 ~ 18.0
|
0
- 0.018
|
0
- 0.027
|
0
- 0.043
|
0
- 0.070
|
0
- 0.11
|
0
- 0.18
|
|
18.0 ~ 30.0
|
0
- 0.021
|
0
- 0.033
|
0
- 0.052
|
0
- 0.084
|
0
- 0.13
|
0
- 0.21
|
|
30.0 ~ 50.0
|
0
- 0.025
|
0
- 0.039
|
0
- 0.062
|
0
- 0.10
|
0
- 0.16
|
0
- 0.25
|
|
50.0 ~ 80.0
|
0
- 0.030
|
0
- 0.046
|
0
- 0.074
|
0
- 0.12
|
0
- 0.19
|
0
- 0.30
|
Diameter Tolerance and Ovality
|
Shape |
Spec.(Dia X Length) |
Tolerance |
|
Diameter(mm) |
Length(mm)
|
| CD
BAR |
Round |
~13.0 |
2,000~6,000 |
h9 |
| 13.0~ |
2,500~7,000 |
| Hexagon |
5.0~25.0 |
2,000~7,000 |
h11 |
| Square |
5.0~22.0 |
2,000~7,000 |
h12 |
| CG BAR (R) |
8.0~30.0 |
2,000~6,500 |
h7 |
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