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Standard: EN 10305-1 Steel grade: E215, E235, E355, E255, E410 Size: OD (4-370mm) x WT (0.5-32mm) Application: For Automotive, machinery, Oil cylinder tube, Motorcycle shock reducer steel tube, Auto shock reducer inner cylinder, etc. |
Dimension Tolerance:
|
OD Tolerance |
4-30mm |
31-40mm |
41-50mm |
51-60mm |
61-70mm |
71-80mm |
81-90mm |
91-100mm |
|
±0.08mm |
±0.15mm |
±0.20mm |
±0.25mm |
±0.30mm |
±0.30mm |
±0.40mm |
±0.45mm |
|
|
WT Tolerance |
±10% |
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Chemical Composition:
|
Grade |
Chemical composition % |
|||||||
|
C |
Si |
Mn |
P |
S |
Al |
V |
Others |
|
|
E215 |
≤0.1 |
≤0,05 |
<0.70 |
≤0,025 |
≤0,025 |
≥0,025 |
- |
- |
|
E235 |
≤0,17 |
≤0,35 |
<1,20 |
≤0,025 |
≤0,025 |
- |
- |
- |
|
E355 |
≤0,22 |
≤0,55 |
<1,60 |
≤0,025 |
≤0,025 |
- |
- |
- |
Mechanical Properties:
|
Grade |
Mechanical properties (Min.) |
|||||||||||
|
+C |
+LC |
+SR |
+A |
+N |
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|
R m |
A% |
R m |
A% |
R m |
ReH |
A% |
R m |
A% |
R m |
ReH |
A% |
|
|
MPa |
MPa |
MPa |
MPa |
MPa |
Mpa |
Mpa |
||||||
|
E215 |
430 |
8 |
380 |
12 |
380 |
280 |
16 |
280 |
30 |
290 - 430 |
215 |
30 |
|
E235 |
480 |
6 |
420 |
10 |
420 |
350 |
16 |
315 |
25 |
340 - 480 |
235 |
25 |
|
E355 |
640 |
4 |
580 |
7 |
580 |
450 |
10 |
450 |
22 |
490 - 630 |
355 |
22 |
+C (BK): Glossy hard;
+LC (BKW): Glossy soft;
+SR (BKS): Glossy soft (tempered);
+A (GBK): Without scale,
soft;
+N (NBK): Normalized