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November 07, 2023
Introduction:
Shandong Fengbao Metal Products Co., Ltd. production and sales of SRB fine grinding cold finishing hydraulic steel pipe 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.
Our company can also produce and sell SA210 alloy pipe, Hot Rolled Seamless Pipe, Cold Drawn Seamless Pipe, galvanized round pipe, oil and gas pipeline and other carbon steel products, to provide customers with one-stop service.
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:
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 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 |
En stanard SRB Honed Cold finished Hydraulic steel tube made in china
Tolerance in Dimension:
| Size ID*OD (mm) length can be fixed biggest 6M | |||
| 40*50 | 90*110 | 140*170 | 190*215 |
| 40*55 | 95*110 | 145*170 | 190*220 |
| 50*60 | 95*115 | 150*170 | 190*225 |
| 50*65 | 100*110 | 150*175 | 200*220 |
| 55*70 | 100*114 | 150*180 | 200*225 |
| 60*70 | 100*115 | 155*180 | 200*230 |
| 60*75 | 100*120 | 160*175 | 200*245 |
| 60*78 | 100*125 | 160*180 | 200*250 |
| 63*73 | 105*125 | 160*185 | 220*250 |
| 63*75 | 110*125 | 160*190 | 220*270 |
| 63*76 | 110*130 | 160*195 | 225*250 |
| 63*78 | 115*130 | 165*190 | 240*273 |
| 65*80 | 115*135 | 165*205 | 250*290 |
| 70*80 | 120*140 | 170*200 | 250*300 |
| 70*82 | 125*140 | 180*200 | 200*213 |
| 70*85 | 125*145 | 180*205 | 200*216 |
| 70*90 | 125*150 | 180*210 | 250*266 |
| 75*90 | 130*150 | 180*215 | 60*45 |
| 80*92 | 130*155 | 180*220 | 70*57 |
| 80*95 | 130*160 | 185*205 | 90*80 |
| 80*100 | 135*160 | 185*215 | 102*90 |
| 85*100 | 140*160 | 185*220 | 50*40 |
| 90*105 | 140*165 | 190*210 | 55*40 |
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The above is the En stanard SRB Honed Cold finished Hydraulic steel tube we have listed for you. You can submit the following form to obtain more industry information we provide for you.
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Mr. reyn
Tel:86-182-62283768
Fax:
Mobile Phone:+8618262283768
Email:reyn@fengbaosteels.com
Address:Liaocheng Economic and technological Development Zone contemporary international plaza, Liaocheng, Shandong
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