Home > Products > main products > ISO9001 2008 verified Stress Relieve Cold rolled Seamless cylinder pipe
ISO9001 2008 verified Stress Relieve Cold rolled Seamless cylinder pipe
- yantai/qingdao
- T/T
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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, ISO 90012008 | |
Surface Treatment | Other, according to the customer's aquirement | Alloy Or Not | Non-alloy |
Product Description
ISO9001 2008 verified Stress Relieve Cold rolled Seamless cylinder pipe
Company Information:
Yantai Xinpeng steel pipe co,.ltd. top 5 manufacture on the precision steel tube in China, We establish in 1992, from 2002 we begin to work on the hydraulic cylinder tube . We sell the seamless tube, agency of marcegaglia’s Dom tube. We have passed ISO9001:2008 since 2010. Xinpeng Persons all trust Honesty, credit is more important than business itself. We have cooperate with many clients from all over the world, Dongyang Corporation, Lonkon, China Heavy Truck, New star, Faster are all our clients, Xinpeng know technology is and cost reeducation is very important to China’s enterprise. Our main products is cold drawn/rolled steel tube, can do anneal by ourselves, honing and Srb process we all can work also. Any need, welcome to give us inquiry, we will give our best quotation.
Introduction:
Hydraulic cylinder tube st52 din2391 is a kind of after cold rolling processing of a kind of high precision steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe without oxidation layers, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks,etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made seamless tube. The chemical composition of precision seamless steel tube with carbon sulfur C,Si, Mn, S, P, Cr.
The difference between precision steel pipe and seamless pipe:
1. The seamless steel tube with obvious difference is that dimensional accuracy can be up to 0.1mm.2. High precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.
Features:
hydraulic cylinder tube st52 din2391 inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proofing
1. The smaller outer diameter
2. High precision to do small batch production
3. Cold drawn finished products of high precision, good surface quality
4. The steel pipe transverse area is more complex
5. Steel pipe is superior performance, dense metal
Specification:
Standard | DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713 |
Grade | ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45# |
O.D. | 4.0MM-400MM |
W.T. | 0.5MM-18MM |
Surface Treatment | bare, varnished, oiled, anti-corrosion coating as request |
Packing | 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 |
Condition of Delivery | 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 again |
Process
Some Dimension:
OD x WT | OD x WT | OD x WT | OD x WT |
48*31.75 | 98*80 | 154*130 | 45*35 |
45*30 | 100*85 | 137*115 | 35*25 |
25*19 | 121*100 | 94*80 | 125*100 |
50*40 | 120*100 | 90*80 | 90*70 |
40*30 | 140*120 | 80*70 | 100*70 |
65*50 | 123*105 | 111*95 | 120*100 |
70*57 | 146*125 | 50.5*44.5 | 31*25 |
48*40 | 165*140 | 158*135 | 76*55 |
58*50 | 176*150 | 160*135 | 77*57 |
60*50 | 194*160 | 149*125 | 77*59 |
70*50 | 30*25 | 42.5*31 | Other size can work |
95*80 | 128*110 | 190*160 |
OD | GB/T3639(GB8713) | DIN2391(EN10305) | Our Tolerance | 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 |
|
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 |
|
80-120mm | ±0.054 | ±0.087 | ±0.140 |
|
120-180mm | ±0.063 | ±0.100 | ±0.160 |
|
180-250mm | ±0.072 | ±0.115 | ±0.185 |
|
250-315mm | ±0.081 | ±0.130 | ±0.210 |
|
315-400mm | ±0.089 | ±0.140 | ±0.230 |
|
Tolerance in Dimension:
hydraulic cylinder tube st52 din2391
Mechanical Properties:
Condition | Material Grade | T.S (Mpa) | Y.S (MPa) | Elongation (%) |
BKS | ST35 (10#) | ≥420 | ≥315 | ≥14 |
BKS | ST45(20#) | ≥520 | ≥375 | ≥12 |
BKS | ST52(16Mn) | ≥580 | ≥420 | ≥10 |
GBK | ST35 (10#) | ≥315 |
| ≥35 |
GBK | ST45(20#) | ≥390 |
| ≥32 |
GBK | ST52(16Mn) | ≥490 |
| ≥30 |
NBK | ST35 (10#) | 340-470 | ≥235 | ≥32 |
NBK | ST45(20#) | 440-570 | ≥255 | ≥30 |
NBK | ST52(16Mn) | 490-630 | ≥335 | ≥28 |
Application:
hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestry machinery, etc.
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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