Finish-rolled bright steel pipe is a high-precision steel pipe material after finishing drawing or cold rolling. Because the inner and outer walls of precision bright tubes have no oxide layer, no leakage under high pressure, high precision, high finish, no deformation during cold bending, flaring, flattening and no cracks, etc., they are mainly used to produce products of pneumatic or hydraulic components, such as cylinders or oil cylinders, which can be seamless tubes or welded tubes. The chemical composition of precision bright tube includes carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr.
Main features of finishing bright tube:
The inner and outer walls of the steel pipe have high precision and high finish. After heat treatment, the steel pipe has no oxide layer, and the inner wall has high cleanliness. The steel pipe bears high pressure, cold bending does not deform, and flaring and flattening does not crack. The finish rolled steel pipe provided by Tianjin Century Zoomlion can be used for various complex deformation and mechanical processing. Steel pipe color: white with light, with high metallic luster.
Standard, material and delivery status of finish-rolled bright tubes
Main standards: GB/T3639, DIN2391-94/C, DIN2445, EN10305, DIN1630, DIN1629, ASTMA106, ASTMA179, JISG3445
Main materials: 10 #, 20 #, 35,45,40Cr, 25Mn.37Mn5, St35 (E235), St37.4, St45 (E255), St52 (E355)
Main delivery status: NBK (+N), GBK (+A), BK (+C), BKW (+LC), BKS (+SR)
Application of finish-rolled bright tubes
Vehicles, machinery accessories and other machinery with high requirements for the accuracy and smoothness of steel pipes. Now the users of finish rolled steel pipes are not only those who have high requirements for precision and finish. Because the precision of finish rolled bright pipes is high and the tolerance can be kept at 2-8 wires, many mechanical processing users are slowly changing seamless steel pipes or round steel into finish rolled bright pipes in order to save labor, material and time losses.
The common used sizes of Precision steel pipe
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Precision steel pipe specification table |
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| Size | Size | Size | Size |
| 10*2 | 38*4.5 | 60*7 | 108*4 |
| 14*2 | 38*5 | 60*8 | 108*4.5 |
| 14*3 | 38*6 | 63.5*3 | 108*5 |
| 18*3 | 40*2 | 63.5*3.5 | 108*6 |
| 19*2 | 40*3.5 | 63.5*4 | 108*7 |
| 19*2.75 | 42*3 | 63.5*4.5 | 108*8 |
| 19*3 | 42*3.5 | 63.5*5 | 108*9 |
| 20*2 | 42*4 | 63.5*6 | 108*10 |
| 22*2 | 42*4.5 | 63.5*9 | 108*12.5 |
| 22*2.5 | 42*5 | 63.5*10 | 114*4 |
| 22*3 | 45*2.5 | 68*4 | 114*4.5 |
| 22*3.5 | 45*3 | 68*6 | 114*5 |
| 22*4 | 45*3.5 | 70*3 | 114*6 |
| 25*2 | 45*4 | 70*3.5 | 114*9 |
| 25*2.5 | 45*4.5 | 70*4 | 133*4.5 |
| 25*3 | 45*5 | 70*4.5 | 133*5 |
| 25*3.5 | 45*6 | 70*5 | 133*6 |
| 25*4 | 48*3 | 70*6 | 133*6.5 |
| 25.4*4.5 | 48*3.5 | 70*8 | 133*7 |
| 27*2.5 | 48*4 | 70*9 | 133*8 |
| 28*2.5 | 48*4.5 | 70*10 | 133*9 |
| 28*3 | 51*3 | 73*3.5 | 133*10 |
| 28*3.5 | 51*3.2 | 73*4 | 133*12.5 |
| 28*4 | 51*3.5 | 73*4.5 | 140*6 |
| 28*4.5 | 51*4 | 73*5 | 140*8 |
| 30*3 | 51*4.5 | 73*5.5 | 140*10 |
| 32*2 | 51*5 | 73*7 | 159*4.5 |
| 32*2.5 | 51*6 | 76*3.5 | 159*5 |
| 32*3 | 54*3.5 | 76*4 | 159*5.5 |
| 32*3.5 | 54.5*3.5 | 76*4.5 | 159*6 |
| 32*4 | 54*5 | 76*5 | 159*7 |
| 32*4.5 | 57*3 | 76*6 | 159*8 |
| 32*5 | 57*3.5 | 76*7 | 159*10 |
| 34*3 | 57*4 | 89*4 | 159*12 |
| 34*3.5 | 57*5 | 89*4.5 | 168*5 |
| 34*4 | 57*6 | 89*5 | 168*6 |
| 34*4.5 | 57*10 | 89*6 | 168*7 |
| 34*5 | 57*12 | 89*7 | 168*8 |
| 34*8 | 60*3 | 89*8 | 168*9 |
| 36*4 | 60*3.5 | 89*10 | 168*10 |
| 38*2.5 | 60*4 | 102*4 | 194*6 |
| 38*3 | 60*4.5 | 102*4.5 | 194*7 |
| 38*3.5 | 60*5 | 102*5 | 194*9 |
| 38*4 | 60*6 | 102*6 | 194*10 |
We JINBAICHENG is one of the renowned manufacturer, exporter, stockist, stock holder and supplier of Precision steel pipe. We have customer from Mexico, Turkey, Pakistan, Oman, Israel, Egypt, Arab,Vietnam, Myanmar, German, etc.
Website: www.sdjbcmetal.com
Email: jinbaichengmetal@gmail.com
Post time: Apr-04-2023