steel aisi5140
Laiwu, Shandong Province is one of the most famous origins of steel in China. Our company, LAIWU LE REN TRADE CO., LTD. is located in LAIWU. We have several cooperative steel mills and further processing mills. In addition, we have our own members to supervise for the processing and take part in making better quality according to your requirements. Following are our major products which are also most popular with many foreign customers because of their wide applications.
1. Production Form: Hot-rolled/cold drawn/ forged round/square/flat bars
2. Manufacturing Process: EAF/LF/VD/CC/HOT ROLLED/COLD DRAWN/FORGED
3. Delivery requirements: With or without heat treatment
4. Steel Grade:
|
GB |
ASTM |
JIS |
DIN |
|
|
40Cr |
aisi5140 |
SCr440 |
41Cr4 |
|
5. Chemical Composition:
|
Model |
C |
Si |
Mn |
Cr |
Mo |
|
sae5140 |
0.38-0.43 |
0.15-0.35 |
0.70-0.90 |
0.70-0.90 |
0.06 |
6. Mechanical Properties:
|
AISI 5140 |
||||
|
Yield Strength(MPa) |
Tensile Strength(MPa) |
Elongation |
AKV(J) |
Reduction of area |
|
785 |
980 |
9% |
47 |
45% |
7. Application:
A) General service industries (petroleum, food, chemical, paper, fertilizer, Fabric, aviation and nuclear)
B) Fluid, gas and oil transport
C) Pressure and heat transmission
D) Construction and ornament
E) Boiler heat exchangers
8. Dimensional Range:
|
|
Hot-rolled |
Cold-drawn |
Forged |
|
Round |
20mm-300mm |
16mm-70mm |
250mm-800mm |
|
Square |
20*20mm-130*130mm |
10*10mm-80*80mm |
Your requirements |
|
Flat |
Thickness:12mm-100mm Width: 20mm-150mm |
Thickness:6mm-70mm Width:16mm-80mm |
Your requirements |
9. Size tolerances:
Hot-rolled steel round or square bar:
|
d/a(mm) |
5.5-7 |
7-20 |
20-30 |
30-50 |
50-80 |
80-110 |
110-150 |
150-190 |
190-250 |
|
(mm) |
+0.30 -0.30 |
+0.35 -0.35 |
+0.40 -0.40 |
+0.50 -0.50 |
+0.70 -0.70 |
+1.0 -1.0 |
+1.3 -1.3 |
+2.0 -2.0 |
+2.5 -2.5 |
Hot-rolled flat bar:
|
Width(mm) |
Thickness(mm) |
||||
|
Size |
Size tolerance |
Size |
Size tolerance |
||
|
|
Normal |
Better |
|
Normal |
Better |
|
10-50 |
+0.5, -1.0 |
+0.3, -0.9 |
3-16 |
+0.3, -0.5 |
+0.2, -0.4 |
|
50-75 |
+0.6, -1.3 |
+0.4, -1.2 |
16-60 |
+1.5% -3.0% |
+1.0% -2.5% |
|
75-100 |
+0.9, -1.8 |
+0.7, -1.7 |
|||
|
100-150 |
+1.0%, -2.0% |
+0.8%, -1.8% |
|||
10. Quality Condition:
1): Straightness: 3mm/m (max)
2): Corner Radius: 3(max)
3): The ends will be end cut or gas cut
4): No cracks on the surface
11. Packaging:
1): Paint oil on the surface to protect steel bars from rusting.
2): Bundle packing by Iron Strips.
3): Bundle weight is from 2mt to 3 mt.
4): Two or three tags will be attached on each bundle. In general, at one end of each bar, tags will be attached, containing the followings: Description of Goods, Heat No., Steel Grade, Size, NR, WT, Date and Origin.
Of course, all depends on customers’ requirements.
12. Delivery Note: with MTC
