According to the production method, cold drawn seamless pipes can be divided into: hot rolled seamless pipes, cold drawn pipes, precision seamless steel pipes, thermal expansion pipes, cold stamping pipes and kneading pipes, etc.Cold-drawn seamless pipes are made of high-quality carbon structural steel or carbon steel, which can be divided into hot-rolled and cold-rolled (drawn).
According to the butt connection method, seamless steel pipes can be divided into: threaded pipe and bare pipe according to the connection method of the pipe end and tail.The threaded tube is divided into: general threaded tube and thickened tube at the end of the tube.Thickened threaded pipes can also be divided into: external thickened type (with inch thread), internal thickened type (with thread) and thickened type in the table (with external thread in the table) and other ground threaded pipes.Threaded tubes can also be divided into threaded tubes according to the form of external threads: general cylindrical or cone external threads and special external threads.
1. Smaller diameter.
2. The function of seamless steel pipe is better, and the metal material is denser.
3. Cold drawn handicrafts are of high precision and good process performance.
5. Cold drawn handicrafts are of high precision and good process performance.
5. The function of seamless steel pipe is better, and the metal material is denser.
6. The horizontal area of the seamless steel pipe is more complex.
7. The horizontal area of the seamless steel pipe is more complex.
8. High precision can be used for small and large batch production.
The application of cold-drawn seamless pipe follows the development trend of industry and is relatively expanded.Therefore, cold drawn seamless tube handicrafts are widely used in industrial production (such as chemical machinery and equipment, petroleum processing, deep sea exploration, metal components, power engineering transportation, shipbuilding, etc.), agriculture and animal husbandry (such as: sprinkler irrigation equipment, heating rooms), construction ( Such as: water and liquefied gas transportation, cable casing, steel pipe scaffolding, housing, etc.), road bridges, transportation, etc., have been widely used in recent years.Because cold-drawn seamless pipe crafts have the characteristics of beautiful surface and good corrosion resistance, their application scale is becoming more and more widespread.
Following the development trend of scientific and technological progress and production, the level of electroplating industrial production is becoming more and more common.Today, the application of phosphating treatment has spread to every production and discussion unit of the social economy.For example, equipment manufacturing, electronic devices, instruments and meters, chemical plants, light industry, transportation, weapons, aerospace, nuclear energy, etc. have positive significance in the social economy.
Mechanical behavior | |||||
Mechanical properties | |||||
Material material: 20#, 45#, 16Mn, 27SiMn, ST52, SAE1026 | |||||
standard standra | d: GB/T8713 GB/T3639 EN10305 AS | TM A519 | |||
steel number | Tensile | extend | Tensile | yield | extend |
20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
45# | ≥640 | ≥5 | ≥600 | ≥520 | ≥10 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
25Mn | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
27SiMn | ≥800 | ≥5 | ≥760 | ≥610 | ≥10 |
E355 (St52) | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
Cold drawn tube size range The size range of cold drawn seamless tube | |||||||||||
Inner diameter tolerance (ID tolerance): upon request (upon request) | |||||||||||
ID | Wall thickness WT | ||||||||||
4 | 5 | 6.5 | 7.5 | 8.5 | 10 | 12.5 | 15 | 17.5 | 20 | 22.5 | |
40 | |||||||||||
45 | |||||||||||
50 | |||||||||||
50.8 | |||||||||||
55 | |||||||||||
60 | |||||||||||
63 | |||||||||||
63.5 | |||||||||||
65 | |||||||||||
70 | |||||||||||
75 | |||||||||||
76.2 | |||||||||||
80 | |||||||||||
85 | |||||||||||
88.9 | |||||||||||
90 | |||||||||||
95 | |||||||||||
100 | |||||||||||
101.6 | |||||||||||
105 | |||||||||||
110 | |||||||||||
114.3 | |||||||||||
115 | |||||||||||
120 | |||||||||||
125 | |||||||||||
127 | |||||||||||
135 | |||||||||||
140 | |||||||||||
150 | |||||||||||
152.4 | |||||||||||
155 | |||||||||||
160 | |||||||||||
170 |
| ||||||||||
180 |
| ||||||||||
190 | |||||||||||
200 | |||||||||||
210 | |||||||||||
220 | |||||||||||
230 | |||||||||||
240 | |||||||||||
250 | |||||||||||
Other sizes are also acceptable (Other sizes upon request) |
According to the production method, cold drawn seamless pipes can be divided into: hot rolled seamless pipes, cold drawn pipes, precision seamless steel pipes, thermal expansion pipes, cold stamping pipes and kneading pipes, etc.Cold-drawn seamless pipes are made of high-quality carbon structural steel or carbon steel, which can be divided into hot-rolled and cold-rolled (drawn).
According to the butt connection method, seamless steel pipes can be divided into: threaded pipe and bare pipe according to the connection method of the pipe end and tail.The threaded tube is divided into: general threaded tube and thickened tube at the end of the tube.Thickened threaded pipes can also be divided into: external thickened type (with inch thread), internal thickened type (with thread) and thickened type in the table (with external thread in the table) and other ground threaded pipes.Threaded tubes can also be divided into threaded tubes according to the form of external threads: general cylindrical or cone external threads and special external threads.
1. Smaller diameter.
2. The function of seamless steel pipe is better, and the metal material is denser.
3. Cold drawn handicrafts are of high precision and good process performance.
5. Cold drawn handicrafts are of high precision and good process performance.
5. The function of seamless steel pipe is better, and the metal material is denser.
6. The horizontal area of the seamless steel pipe is more complex.
7. The horizontal area of the seamless steel pipe is more complex.
8. High precision can be used for small and large batch production.
The application of cold-drawn seamless pipe follows the development trend of industry and is relatively expanded.Therefore, cold drawn seamless tube handicrafts are widely used in industrial production (such as chemical machinery and equipment, petroleum processing, deep sea exploration, metal components, power engineering transportation, shipbuilding, etc.), agriculture and animal husbandry (such as: sprinkler irrigation equipment, heating rooms), construction ( Such as: water and liquefied gas transportation, cable casing, steel pipe scaffolding, housing, etc.), road bridges, transportation, etc., have been widely used in recent years.Because cold-drawn seamless pipe crafts have the characteristics of beautiful surface and good corrosion resistance, their application scale is becoming more and more widespread.
Following the development trend of scientific and technological progress and production, the level of electroplating industrial production is becoming more and more common.Today, the application of phosphating treatment has spread to every production and discussion unit of the social economy.For example, equipment manufacturing, electronic devices, instruments and meters, chemical plants, light industry, transportation, weapons, aerospace, nuclear energy, etc. have positive significance in the social economy.
Mechanical behavior | |||||
Mechanical properties | |||||
Material material: 20#, 45#, 16Mn, 27SiMn, ST52, SAE1026 | |||||
standard standra | d: GB/T8713 GB/T3639 EN10305 AS | TM A519 | |||
steel number | Tensile | extend | Tensile | yield | extend |
20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
45# | ≥640 | ≥5 | ≥600 | ≥520 | ≥10 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
25Mn | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
27SiMn | ≥800 | ≥5 | ≥760 | ≥610 | ≥10 |
E355 (St52) | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
Cold drawn tube size range The size range of cold drawn seamless tube | |||||||||||
Inner diameter tolerance (ID tolerance): upon request (upon request) | |||||||||||
ID | Wall thickness WT | ||||||||||
4 | 5 | 6.5 | 7.5 | 8.5 | 10 | 12.5 | 15 | 17.5 | 20 | 22.5 | |
40 | |||||||||||
45 | |||||||||||
50 | |||||||||||
50.8 | |||||||||||
55 | |||||||||||
60 | |||||||||||
63 | |||||||||||
63.5 | |||||||||||
65 | |||||||||||
70 | |||||||||||
75 | |||||||||||
76.2 | |||||||||||
80 | |||||||||||
85 | |||||||||||
88.9 | |||||||||||
90 | |||||||||||
95 | |||||||||||
100 | |||||||||||
101.6 | |||||||||||
105 | |||||||||||
110 | |||||||||||
114.3 | |||||||||||
115 | |||||||||||
120 | |||||||||||
125 | |||||||||||
127 | |||||||||||
135 | |||||||||||
140 | |||||||||||
150 | |||||||||||
152.4 | |||||||||||
155 | |||||||||||
160 | |||||||||||
170 |
| ||||||||||
180 |
| ||||||||||
190 | |||||||||||
200 | |||||||||||
210 | |||||||||||
220 | |||||||||||
230 | |||||||||||
240 | |||||||||||
250 | |||||||||||
Other sizes are also acceptable (Other sizes upon request) |