2mm-80mm precision thick wall seamless steel pipe
Product Description
DIN2391 EN10305 BK .NBK, GBK Precision Cold Drawn Seamless Steel Pipe
Brand : Zhongxing Steel Pipe (by ourselves)
Specification : OD18mm to 121mm , Thickness 2mm to 18mm
0ur products are offered in standard as well as customized specifications given as per client.
1.Section shape : Round
2. Material Specification and Ref. Document
ST52,BK+S OR NBK,DIN2391
OD:36-480mm WT:3-40mm
3. Chemical Compisition (%)
Steel grade | Chemical composition,% | |||||
C | Si | Mn | P | S | Cr | |
≤ | ||||||
St45 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.250 |
ST52(E355) | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.25 |
SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.040 | 0.050 | / |
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.035 | 0.035 | 0.300 |
20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.250 |
4. Mechanical Properties
Delivery condition | BK Cold finished(hard) | BKS Cold drawn and stress-relieved | |||
Steel grade | Rm Mpa | Elongation | Rm MPa | ReH MPa | Elonggation |
ST45 | ≥550 | ≥5 | ≥520 | ≥375 | ≥15 |
ST52(E355) | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
5. Supply Condition
Cold drawn seamless Steel Tube, stress relieved and honed or skived roller burnished
6. Surface Roughness
Ra = 0.4~0.8 Micron
7. Tolerances of Inner Dia.
Size of I.D | I.D Tolerance | Tolerance of wall thickness | ||
H8 | H9 | H10 |
±7.5% >210mm ±10% | |
30 | +0.0330 | +0.0520 | +0.0840 | |
>30-50 | +0.0390 | +0.0620 | +0.1000 | |
>50-80 | +0.0460 | +0.0740 | +0.1200 | |
>80-120 | +0.0540 | +0.0870 | +0.1400 | |
>120-180 | +0.0630 | +0.1000 | +0.1600 | |
>180-250 | +0.0720 | +0.1150 | +0.1850 | |
>250-315 | +0.0810 | +0.1300 | +0.2100 |
8. Tolerance on Outer Dia.
≤ Dia 40 +/-0.2 mm
≥ Dia 40 ≤ Dia 100 +/-0.3mm
≥ Dia 100 +/-0.5mm
9. 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.
10. Scope
Hydaulic cylinder tube for swivel crane, injection machine and construction machine application
Material : St 35,St45 , St 52
4. As per client`s request .
Length: Length for smls pipe is 4.8meters to 12meters .
generally 5-5.8meters random length for 20ft ctnr ,6-12m random length for 40ft ctnr, or fixed length like 5.8meters , 6meters ,11.8meters as per demand .
Ends : Plain ends, beveled ends
Raw material :Steel bar
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Features |
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Usage | Mainly used to produce Pneumatic or hydraulic component `s products ,like Cylinder or oil cylinder |
Advantage | Precision Seamless Pipe application could save steel material , improve Processing effect , reduce the procedure and equipment investment , save cost and time to improve production production capacity |
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Specialized in seamless steel pipe for more than 21years including exporting for more than 8years, we achieved much experience for good service
Seamless steel tube or pipe is our mainly products
Our company is a professional manufactuer in steel pipe .
We will provide you the excellent quality and best price with better professional service !
Contact us if you need more details on Thick Wall Pipe. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Precision Seamless Steel Pipe、2mm-80mm Precision Pipe. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : Precision Steel Pipe
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