Small OD Seamless Precision Steel Tubes
Product Details
small OD seamless steel tubes
,precision cold drawn steel tubes
,seamless steel tubes with warranty
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 |
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,
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