Seamless Cold Drawn Precision Steel Tubes E215+C/E215+N as DIN EN10305-1
The Similar Steel Tubes Material: EN1305-1 E215, DIN2391-2 St30Al,GB/T 3639 08Al.
Size Range: OD: 6-128mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
Delivery Condition: +C, +LC, +SR, +A, +N
Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Break system tubing,
Chair tubing,hydraulic tubing.
We offered the Steel Tubes with Stable Quality with Comeptitive Price and high tolerance
+N(Bright Annealing) Heat Treatment, The steel tubing Surface is bright and smooth, without oxide scale
The Steel Tubes with Good Extending and Bending Ability.
The Steel Tube Chemical composition:
| Steel Grade |
The Tube Steel Chemical Composition |
| Symbol |
Standard |
C |
Si |
Mn |
P |
S |
Al |
| Country |
Max.% |
Max.% |
% |
Max.% |
Max.% |
Max.% |
| 08Al |
GB/T699 |
0.11 |
0.03 |
0.25～0.50 |
0.025 |
0.025 |
0.02～0.07 |
| St30Al |
DIN2391/2 |
0.10 |
0.05 |
0.25～0.55 |
0.025 |
0.025 |
0.02～0.08 |
| E215 |
EN10305-1 |
0.10 |
0.05 |
0.25～0.70 |
0.030 |
0.030 |
0.01～0.08 |
E215/St30AL/08AL Seamless PrecisionTtubes Mechanical Properties:
| Steel Grade |
NBK(+N) |
BK(+C) |
| Name |
Tensile Rm |
Yield ReH |
Elogation A |
Tensile Rm |
Elogation A |
| Mpa |
Mpa |
≥ % |
Mpa |
≥ % |
| 08Al |
295～430 |
≥195 |
33 |
420～640 |
≥8 |
| St30Al |
290～420 |
≥215 |
30 |
430～640 |
≥8 |
| E215 |
290～430 |
≥215 |
30 |
440～640 |
≥8 |
The Tube Mill Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, On line inspection
5. Heat Treatment:+SR, +A, +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.
The Steel Tubes and Steel Pipes Pictures:
Tags:cold drawn,seamless,precision steel tubes,E215,EN10305-1,
