JIS-SUM24L Free Cutting Steel Bar
Products Description
JIS SUM24L/ SF20T / Y022cr20mo2/ Dsr6 For Self-locking quick connectors
Diameter :1.0mm , 1.6mm, 2.3mm
Real diameter 2.285-2.290mm or 2.285~ 2.290-2.295mm, ovality≤0.0006mm
Tensile Strength: 750-850 MPA
Elongation rate: 2-5%
Application: Ball pen tips
Chemical component:
| Grade | Chemical Component% | |||||||||
| C | Si | Mn | P | S | Cr | Mo | N | Pb | Te | |
| Y022Cr20Mo2 | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≥0.2 | 19.00~21.00 | 1.50~2.50 | ≤0.03 | 0.10~0.30 | 0.01~0.07 |
|
MODEL NO. |
OUTER DIAMETER |
DIAMETER TOLERANCE |
LENGTH |
DEPTH OF EFFECTIVE HARDENED LAYER |
WEIGHT(kg/m) |
|
|
g6 |
h6 |
|||||
|
Dsr6 |
6 |
-0.004 |
0 |
100-2000 |
>0.8 |
0.22 |
|
Dsr8 |
8 |
-0.005 |
0 |
100-2000 |
0.40 |
|
|
Dsr10 |
10 |
-0.005 |
0 |
100-2000 |
>1.0 |
0.62 |
|
Dsr12 |
12 |
-0.006 |
0 |
100-3000 |
0.89 |
|
|
Dsr13 |
13 |
100-3500 |
1.04 |
|||
|
Dsr16 |
16 |
100-4000 |
>1.5 |
1.58 |
||
|
Dsr20 |
20 |
-0.007 |
0 |
100-6000 |
2.47 |
|
|
Dsr25 |
25 |
3.85 |
||||
|
Dsr30 |
30 |
>2.0 |
5.55 |
|||
|
Dsr35 |
35 |
-0.009 |
0 |
7.55 |
||
|
Dsr40 |
40 |
>2.5 |
9.87 |
|||
|
Dsr50 |
50 |
15.4 |
||||
Product Picture
Our factory
Steel Making
Ingot Production
Forged Bars
Machinary
Production Process
Sizes we can supply for SUM24L cold drawn steel bars:
| 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 | 5*5mm to 120*120mm | 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 |
Quality Control
We make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers.
Packing & Delivery
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 4 min places of the bar length and tagged properly.
*Anti-rust oil paint
* plastics bag wrapped,wooden box,wooden pallet
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