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mild seamless piping top manufacturer
- 500 Metric Ton / Metric Tons per Month
- Yantai Qingdao or as client's request
- T/T
Product Details
Thickness: | 2, 30 | ||||
Section Shape: | Round | Outer Diameter: | 30 - 300 mm | Place of Origin: | Shandong, China |
Secondary Or Not: | Non-secondary | Application: | Other, Hydraulic Pipe, hydraulic cylinder, excavator, forklifts and so on | Certification: | Other, ISO9001:2008 |
Surface Treatment: | Other, honed/SRB | Alloy Or Not: | Non-alloy |
Product Description
Product: Mild seamless piping top manufacturer
Technical specification: Suitable for SK+RB/Honed or Skived and hydraulic cylinder tube
Grade:20# 45# Q345 25Mn 27SiMn
Tensile strengh: ≥ 600N/mm2
Elongnation: >15
Process
Equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine.
Character
Honed steel pipe or SRB steel pipe are widely directly used for hydraylic cylinder, this kind pipe are in better internal roughness Ra 0.2~0.8um, ID tolerance: H8 H9, straightness:1:1000 or customized, length: Max 6m. Strictly abide by ISO9001 system, our production are in high quality control with tight tolerance , better surface finishing, and superior mechanical property .
Mechanical Property
Delivery Condition | Cold drawn+stress-relieved(BK+S)(SR) | Cold finished(hard)(BK) | |||
Steel Grade | Tensile strength (Rm Mpa)
| Yield strength (ReH Mpa)
| Elongation A5% | Tensile strength (Rm Mpa)
| Elogation A5%
|
20# | ≥520 | ≥375 | ≥15 | ≥550 | ≥8 |
45# | ≥600 | ≥520 | ≥10 | ≥640 | ≥5 |
16Mn(Q345B Q345D) | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
25Mn | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
27SiMn | ≥760 | ≥610 | ≥10 | ≥800 | ≥5 |
St45 | ≥520 | ≥375 | ≥15 | ≥550 | ≥5 |
E355(St52) | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
SAE1026 | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
Technique and tolerance
Working Method | Range | Size of ID | Tolerance | |||||
ID tolerance | WT(mm) | Ovality | Curvature | |||||
H8 | H9 | H10 | ||||||
Cold Drawn | 25-250 | >30-50 | +0.0390 | +0.0620 | +0.1000 | ±5% to 7.5% ID>210mm ±10% | ≤0.10-0.20 | 0.3 |
Cold rolling | 25-150 | >50-80 | +0.0460 | +0.0740 | +0.1200 | |||
Cold drawn-hone | 40-250 | >80-120 | +0.0540 | +0.0870 | +0.1400 | |||
Cold drawn-SRB | 50-250 | >120-180 | +0.0630 | +0.1000 | +0.160 | |||
Cold drawn-polish | 40-250 | >180-250 | +0.0720 | +0.1150 | +0.1850 | |||
Cold drawn-polish-SRB | 50-250 | Other size and technique parameter upon request |
Certificate
Strictly according to system verified ISO9001:2008, all our products are in high quality control and tight tolerance.
Our service
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by
3. Big discount for repeat customers
4. Smooth delivering procedure
5. Payment Terms: T/T , L/C And so on.
Packaging&Shipping
1. bundle packing
2. marking as per customer's requests
3. paint on the pipe as per customer request
4. pipe caps as customer request
Delivery condition
1. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
2. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
3. BK(+C)
the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee
4. BKW(+LC)
after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)
5. BKS(+SR)
have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing
Waiting for your contact!
Contact Us
- Yantai Xinpeng Steel Pipe Co., Ltd.
- Contact nameJudy Gao
- Phone0086-535-6835398
- Address2th,Binglun Road,APEC Technology Industrial Park,Zhifu District,Yantai City Yantai,Shandong
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