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out diameter 4mm DIN2391 Precision seamless steel tubes
- 500 Metric Ton / Metric Tons per Month
- yantai/qingdao
- T/T
- API 5L / ASTM A53 Gr. B / A106 Gr.B hot/cold rolled carbon seamless steel pipe precision tube
- supply best quality of CK 45 carbon seamless steel tube
- Precision DIN 2391 ST37 carbon seamless steel piping
- Prime quality factory supply EN 10305 e235 precision seamless steel tube
- the leading manufacture of precision seamless steel pipe
- ASTM A519 NBK Precision Seamless Steel Tube for Mechanical and Automobile
Product Details
Thickness: | 2, 30 | ||||
Section Shape: | Round | Outer Diameter: | 30 - 250 mm | Place of Origin: | Shandong, China |
Secondary Or Not: | Non-secondary | Application: | Hydraulic Pipe | Technique: | Cold Drawn |
Certification: | Other, ISO90012008 | Surface Treatment: | Other, according to the customer's aquirement | Alloy Or Not: | Non-alloy |
Product Description
company overview
Yan Tai XinPeng Steel Pipe Co.,Ltd.
our company located in the beautiful coastal city -Yaitai,and it is established in December 1992,our company mainly produces various specifications of cold finished precision steel tube ,which are widely used in hydraulic and pneumatic cylinder for automobile ,engineering machinery ,textile mchinery ,printing machinery ,oil drilling and other filed.
products information
Production | out diameter 4mm DIN2391 Precision seamless steel tubes |
Standard | DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713 |
Inner Diameter | 30mm~250mm |
Wall Thickness | 0.5mm~18mm |
Material | 10#~45#,16Mn,Q195~Q345,ST35~ST52 |
Length | as customers required |
Surface treatment | As customers required |
Package | 1. bundle packing 2. marking as per customer's requests 3. paint on the pipe as per customer request 4. pipe caps as customer reques |
Min Order Quantity | According to customer's requirement |
Payment terms | L/C, T/T |
Contact | If you have any questions, please feel free to contact me. |
Delivery conditions | 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 plastic, the plastic 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 again |
tolerance in dimension
OD | GB/T3639(GB8713) | DIN2391(EN10305) | Our Tolerence | Best Quality |
4-30mm | ±0.10mm | ±0.08mm | ±0.05mm | ±0.02mm |
31-40mm | ±0.15mm | ±0.15mm | ±0.05mm | ±0.03mm |
41-50mm | ±0.20mm | ±0.20mm | ±0.05mm | ±0.03mm |
51-60mm | ±0.25mm | ±0.25mm | ±0.08mm | ±0.03mm |
61-70mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
71-160mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
Tolerance in WT | ±0.12mm | ±0.10mm | ±0.05mm | ±0.03mm |
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Process | Diameter | Length | Precision | Inner Hole Roughness |
Cold Rolled | 30-100mm | ≤12 m | H8-H10 | 0.4-1.6 |
Cold Draw | 30-250mm | ≤12 m | H8-H10 | 0.8-1.6 |
Honing | 40-500mm | ≤12 m | H8-H9 | 0.4-0.8 |
Rolling | 40-400mm | ≤7 m | H8 | 0.4 |
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Inner Diameter | H8 | H9 | H10 |
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30mm | ±0.033 | ±0.052 | ±0.084 | 5-30mm |
30-50mm | ±0.039 | ±0.062 | ±0.100 | ±0.080 |
50-80mm | ±0.046 | ±0.074 | ±0.120 |
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80-120mm | ±0.054 | ±0.087 | ±0.140 |
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120-180mm | ±0.063 | ±0.100 | ±0.160 |
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180-250mm | ±0.072 | ±0.115 | ±0.185 |
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250-315mm | ±0.081 | ±0.130 | ±0.210 |
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315-400mm | ±0.089 | ±0.140 | ±0.230 |
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mechanical property of material
Delivery | cold finished(hard)(BK) | Cold drawn and stress-relieved(BK+S) | |||
Steel grade | Rm MPa | Elongation | Rm MPa | ReH MPa | Elonggation |
20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
ST52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥12 |
packaging &delivery
Please don’t worry that our products are packed, stored, transported according to the international regulation. We do care about the quality of our products; even some little details are paid attention to. We wrap the precision steel pipe with anti-rust paper and steel rings to prevent damage. Identification labels are tagged according to standard specification or customer's instructions. Special packing is available as per customer's requirement. Plus, our storage racks are made of wood. Any unwanted chemical reaction can be prevented.
our certificate
our serivices
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.
FAQ
What is the advantage of our company ?
1.Rapid response on any inquiry.
2.Competitive price with best service .
3.Professional inspection department to guarantee quality.
4.ISO System 90012008certifa
5 Industry experience over20years.
6.Management Systems-Internal Software
7.Finished Product Inventory-More Than 5000 Tons.
8Raw Material inventory -Over 6000 Mertic Tons.
9Shipment of goods -More than 70 countries worldwide.
10.The most convenient transport and prompt delivery
Contact Us
- Yantai Xinpeng Steel Pipe Co., Ltd.
- Contact nameJudy Gao Chat Now
- Phone0086-535-6835398
- Address2th,Binglun Road,APEC Technology Industrial Park,Zhifu District,Yantai City Yantai,Shandong
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