Cold Drawn Precision Seamless pipe
Precision Seamless Pipe
42CrMo 34CrMo4 PG115 PG135 PG145 alloy pipe for perforating gun carrier
What is Precision Seamless Pipe?
Precision seamless tube is usually used in automobile parts, construction machinery manufacturing, mechanical parts, etc.
The production process of precision seamless pipe is a high-precision steel pipe material processed by cold drawing or hot rolling. The precision seamless pipe has the characteristics of high strength, high precision, good quality and precise size.
Precision Seamless Pipe application
Precision seamless tube has a wide range of applications:
Used for oil and gas transmission
Water and oil delivery
Auto parts
Aircraft parts
Hydraulic pressure
Pneumatic system
Precision measurement
instrumentation
what is alloy pipe ?
Alloy pipe is a kind of pipe, its material composition is nickel, chromium, molybdenum, manganese and other elements, alloy pipe is usually used in power plants, chemical plants. Oil and gas industry. It will also be used in aerospace, medical and other fields
alloy pipe application
Alloy pipe is primarily used in power plants, oil and gas refineries, and other high-temperature, high-pressure industrial settings. It is frequently used in the transportation of liquids and gases, such as oil, natural gas, and water. It is also used in the construction of buildings and bridges. It is often used in the fabrication of pressure vessels, as well as piping systems in refineries. Alloy pipe can also be used in the production of heat exchangers and pumps.
Our cold drawn precision pipe grade and composition
| Grade | C | Si | Mn | P | S | Cr | Mo | V | Al |
| 37Mn | 0.36-0.40 | 0.17-0.30 | 1.55-1.70 | Max
0.015 |
Max 0.010 | Max0.20 | Max0.10 | Max 0.05 | – |
| 37Mn/1 | 0.36-0.40 | 0.17-0.30 | 1.55-1.70 | Max
0.015 |
Max 0.010 | Max0.20 | Max0.10 | Max 0.05 | 0.02-
0.045 |
| 37Mn/2 | 0.34-0.38 | 0.17-0.30 | 1.50-1.70 | Max
0.015 |
Max 0.010 | Max0.20 | Max0.10 | Max 0.05 | |
| 34Mn2V | 0.32-0.36 | 0.17-0.35 | 1.50-1.70 | Max
0.015 |
Max 0.010 | Max0.20 | Max0.10 | 0.08-0.12 | – |
| 30CrMo | 0.28-0.32 | 0.17-0.35 | 0.45-0.65 | Max
0.015 |
Max 0.010 | 0.90-1.1 | 0.18-0.25 | Max 0.02 | 0.02-0.045 |
| 35CrMo | 0.33-0.39 | 0.17-0.35 | 0.45-0.65 | Max
0.015 |
Max 0.010 | 0.90-1.1 | 0.18-0.25 | Max 0.05 | – |
| 34CrMo4 | 0.30-0.35 | 0.17-0.35 | 0.65-0.80 | Max
0.015 |
Max 0.010 | 0.90-1.1 | 0.18-0.25 | Max 0.05 | 0.02-0.045 |
| As<0.02%,Sn<0.02%,As+Sn+Sb+Pb+Bi<0.035,V+Nb+Ti+B+Zr<15% | |||||||||
Physical Properties of alloy seamless steel pipe
| Grade | Heating Temperature (℃) | Cooling way | Tensile strength (Mpa) | Yield Strength (Mpa) | Elongation | Impact value |
| 37Mn | 820-860 quenching
550-650 tempering
|
water | ≧750 | ≧630 | ≧16 | ≧27(-50℃) |
| 37Mn/1 | 820-860 quenching
550-650 tempering
|
water | ≧750 | ≧630 | ≧16 | ≧30(-50℃) |
| 37Mn/2 | 820-860 quenching
550-650 tempering
|
water | ≧750 | ≧630 | ≧16 | ≧30(-50℃) |
| 34Mn2V | 820-860 quenching
550-650 tempering
|
water | ≧745 | ≧530 | ≧16 | ≧27(-50℃) |
| 30CrMo | 820-860 quenching
550-650 tempering
|
water | ≧930 | ≧785 | ≧12 | ≧27(-50℃) |
| 35CrMo | 820-860 quenching
550-650 tempering
|
water | ≧980 | ≧835 | ≧12 | ≧27(-50℃) |
| 34CrMo4 | 820-860 quenching
550-650 tempering
|
water | ≧950 | ≧850 | ≧14 | ≧30(-50℃) |
We also can supply seamless pipe according to API SPEC5L,ISO3183 etc.
FAQ
Which is better seamless or ERW pipe?
Seamless pipe is generally better than ERW pipe because it is stronger, more durable and can withstand higher pressure. Seamless pipe also has a higher corrosion resistance than ERW pipe. Additionally, seamless pipe is more aesthetically pleasing and has a smoother surface finish than ERW pipe.
Is seamless pipe stronger than welded?
Seamless pipe is stronger than welded pipe because it is homogenous, meaning that its structure is the same throughout the entire length, while welded pipe is composed of multiple sections of pipe welded together, making it weaker at the welded joints.