en10305 din2391 Precision seamless Steel pipe
Product Description
Specifications
1 en10305 din2391 Precision Seamless Steel Pipe
2:OD:10-203mm WT:2-20mm
3.material:ST37.4/E235; ST52.4/E355
en10305 din2391 Precision Seamless Steel Pipe
DIN 2391- Seamless Precision Steel Tubes for mechanical and automotive engineering.
EN 10305-1/4 Seamless Steel Pipes for precision applications
DIN 2391/EN 10305/A519 Precision Steel pipes |
1. OD 10mm-203mm |
2 wall thicknessm:2mm to 20mm |
3. Dimensional accuracy: 0.08mm |
4. Bore roughness: Ra 0.4-1.6 |
5. Widely used in Mechanical, Chemical, Oil, Automobile industries. |
6. Main Material: ST37.4/E235; ST52.4/E355 |
7. Delivery State: BK/NBK/BKS/GBK |
1. MATERIAL SPECIFICATION
ST 52,BK+S,DIN 2391 OR Equivalent
2. CHEMICAL COMPOSITION (%)
C (Max) Mn(Max) Si(Max) S(Max) P(Max)
0.22 1.6 0.5 0.035 0.035
3. MECHANICAL PROPERTIES
Elongation(Min) Y.S (Min.) UTS (Min.)
≥15 470 N/MM2 580 N/MM2
4. SUPPLY CONDITION
Cold drawn seamless Steel Tube, stress relieved and honed or skived roller burnished
5. SURFACE ROUGHNESS
Ra = 0.4~0.8Micron
6. TOLERANCES ON INNER DIA
ISO H8
7. STRAIGHTNESS: ≤1 mm/M
8. OD TOLERANCE
≤ Dia 40 +/-0.2 mm
≥ Dia 40 ≤ Dia 100 +/-0.3mm
≥ Dia 100 +/-0.5mm
9. LENGTH AND CUT TOLERANCE
Length ≤ 500mm , +2mm
> 500mm ≤ 2000mm, +3mm
> 2000mm ≤ 5000mm, +5mm
> 2000mm ≤ 7000mm, +10mm
10. TUBE ENDS
Tube ends shall be cut nominally square to the axis and free from burs
11. APPEARANCE
Tube shall have a smooth internal and external surface consistent with cold working
process, tube inner surface should be free from rust, scratches and other surface
irregularities.
12. CERTIFICATION
Material certificates will be send to u if want.
13. PACKAGE
Anti rust oil to be applied on material and both ends closed by plastic cap and
bundled by steel strips,braiding parcel.
14. SCOPE
Hydraulic cylinder tube for swivel crane, injection machine and construction
machine application.
Grade and Chemical Composition(%):
Grade | Chemical Composition(%): | ||||
C max | Si max | Mn | P max | S max | |
St 35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 45 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
E215 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 |
E235 | 0.17 | 0.35 | 1.2 | 0.025 | 0.025 |
E355 | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 |
Mechanical Properties(Mpa):
Steel grade | BK(+C) | BKW(+LC) | BKS(+SR) | GBK(+A) | NBK(+N) | |||||||
RmN/mm | min | RmN/mm | min | N/mm | ReH | min | N/mm | min | N/mm | ReH | min | |
St35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340-470 | 235 | 25 |
St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 235 | 21 |
St52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490-630 | 355 | 22 |
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 |
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Product Categories : Precision Steel Pipe
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