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[China]
Address: No. 2503 Room,3B Buiding,ShiFu Road,LuCheng District,Wenzhou City,China
Contact name:Mark Fuel
HAINER STEEL INDUSTRIAL CO.,LIMITED |
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EN10305 E235 Precision Seamless Steel Tube 0.05 mm Tolernace
Quick Detail:
Description:
Quality Control:
Our quality control department consists of experienced technicians.
These personnel strictly control the whole production procedure,
from introduction of raw materials to finish products. They ensure
high quality products for our customers.
EN 10305 E235 precision seamless steel tube
Introduction:
Precision seamless steel tube en 10305 e235 precision seamless steel tube is a kind of after cold rolling processing of a kind of high precison 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 layars, 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 obvioue 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:
Precision seamless steel tube en 10305 e235 precision seamless steel tube 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 proffing
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
Specifiation:
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 |
Condirion 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, threfore small steel pipe plasticly, the plasticly 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 |
EN10305 E23 precision seamless steel tube
Some Demension:
OD x WT | OD x WT | OD x WT | OD x WT |
4*0.5 | 16*0.5 | 26*1.8 | 35*9.0 |
4*0.8 | 16*0.8 | 26*2.0 | 35*10 |
4*1.0 | 16*1.0 | 26*2.2 | 38*0.5 |
4*1.2 | 16*1.2 | 26*2.5 | 38*0.8 |
5*0.5 | 16*1.5 | 26*2.8 | 38*1.0 |
5*0.8 | 16*1.8 | 26*3.0 | 38*1.2 |
48*5.0 | 70*2.8 | 90*10 | 130*14 |
48*5.5 | 70*3.0 | 90*12 | 130*16 |
48*6.0 | 70*3.5 | 90*14 | 130*18 |
48*7.0 | 70*4.0 | 90*16 | 140*2.5 |
48*8.0 | 70*4.5 | 95*2.0 | 140*2.8 |
48*9.0 | 70*5.0 | 95*2.2 | 140*3.0 |
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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EN10305 E23 precision seamless steel tube
Mechanical Properties:
Condition | Materail 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:
Precision pipe en 10305 e235 precision seamless steel tube 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, forestrymachinery, etc.
Our advantage
We owned special equipment for manufacturing various high precision products
