cold rolled precision seamless steel tube for hydraulic and pneumatic cylinder diameter
USD $0.5 - $1.5 /Metric Ton
Min.Order:5 Metric Tons
Yantai Xinpeng Steel Pipe Co., Ltd.
products information
Production | cold rolled precision seamless steel tube for hydraulic and pneumatic cylinder diameter |
Standard | DIN/ASTM/EN/GB/JIS/AISI |
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 |
the tolerance of 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 |
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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The finished products
about our process
about our services
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.
about our testing equipment
1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material |
2.100% Dimension & Visual Examination |
3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test |
4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT) |
5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor) |
6.Straightness Test (optional) |
7.Roughness Test (optional) |
8.Intergranular Corrosion Test(optional) |
9.Impact Test (optional) |
10.Grain Size Determinations (optional) |
packaging details: standard packing with plastic caps and starpped bundles,standard wheight approx 1500Kg
delivery details: 15 days after receiving downpayment or L/C or as your request
About our company :
Yan Tai XinPeng Steel Pipe Co.,Ltd
Located in yantai, a beautiful coastal city.our company is in the APEC Science&Technology Industrial Park,urban area of yantai,with convenient transportaton.Established in December 1992, with registered capital of 5mllion yuan and plant and office space of 12,000m²,covering an area of 20,000m²,our company mainly products various specifications of cold -drawn precision seamless steel tube and hydraulic precision cylinder ,which are widely used in such industries as hydro-cylinder,automobile,engineering machinery ,textile machinery ,printing machinery ,oil drilling,etc.Our company is also the distributer of several domestic well-known steel tube plants in shandong,and mianly distributes seamless steel tubes of all kinds of materials.
If there is any Question, please feel free to send us inquiry.
We will provide the professional Explanation.
We always do our Best!