Home > Products > Cold Rolled/Drawn Tube > DIN 2391 ST37.4 ST52.4 precision seamless steel hydraulic tube
DIN 2391 ST37.4 ST52.4 precision seamless steel hydraulic tube
- 500 Metric Ton / Metric Tons per Month
- Qingdao or Chinese main port
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Product Details
Place of Origin: | Shandong, China | Thickness: | 2, 30 | ||
Application: | Hydraulic Pipe | Technique: | Cold Drawn | ||
Alloy Or Not: | Non-alloy | ||||
Secondary Or Not: | Non-secondary | Special Pipe: | Thick Wall Pipe | Section Shape: | Round |
Product Description
Company introduction:
Located in Yantai, our company Yantai Xinpeng Steel Pipe Co., Ltd, is in(APEC) Science& Technology Industrial Park, with convenient transportation. Established in Dec 1992, with registered capital of 5 million Yuan, we have more than 20 years experience in manufacturing and exporting steel pipe. Our company mainly produces various specifications of cold finished precision steel pipe, which are widely used in hydraulic Pneumatic cylinder for automobile, engineering machinery, textile machinery, printing machinery, oil drilling and other field.
Our company is equipped with JLB 250T hydraulic cold drawn machine set, LD120 precision cold rolled machine set, multiple precision straightening machine, box heat treat furnaces(8000-10000mm).In 2002, our company equipped one set advanced CNC skived and roller burnished machine SRB-600mm, several Powerful honed machine, Combined cold drawn, cold rolling, heat treatment and SRB process to produce the best quality products. Standard:GB/T8713-88, GB/T3639-2000 or according to customers’ requirement. Material usual 20#,45#,16Mn,25Mn,27SiMn,St35,St52,etc.
Specifications:
1.Standard:GB/T8713,GB/T3639,DIN2391,EN10305,ASTMA519,ASTMA106-2006
2.Grade: 20#(aisi1020,ck20),45#(aisi1045,ck45),st52(16Mn,Q345D),25Mn(stkm13c-t),27SiMn
3.OD:30-250mm
4.ID tolerance:H7,H8,H9
5. Wall thickness:10%×ID
6.Surface roughness:Ra 0.02— 0.4μm
7. Delivery condition:BK,BKW,BKS,GBK,NBK
8.Ovality: ≤ 0.10-0.20
9.Curvature:0.3
ID tolerance:
ID size | ID deviation (mm) | |||
H7 | H8 | H9 | H10 | |
30 | +0.021 0 | +0.033 0 | +0.052 0 | +0.084 0 |
>30~50 | +0.025 0 | +0.039 0 | +0.062 0 | +0.100 0 |
>50~80 | +0.030 0 | +0.046 0 | +0.074 0 | +0.120 0 |
>80~120 | +0.035 0 | +0.054 0 | +0.087 0 | +0.140 0 |
>120~180 | +0.040 0
| +0.063 0 | +0.100 0 | +0.160 0 |
>180~250 | +0.046 0 | +0.072 0 | +0.115 0 | +0.185 0 |
>250~315 | +0.052 0 | +0.081 0 | +0.130 0 | +0.210 0 |
>315~400 | +0.0527 0 | +0.089 0 | +0.140 0 | +0.230 0 |
Production workshop:
Products Process:
Application:
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