Stainless steel pipe is a kind of hollow long round steel, which is mainly widely used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrumentation, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also commonly used as furniture, kitchen utensils, etc.
| Shandong Zhuosheng Pipe Standard Specifications |
| Thickness |
0.5mm-100mm |
| Outer diameter |
10mm, 25.4mm, 38.1mm, 50.8mm, 100mm, 250mm, 300mm, 350mm, etc |
| Length |
2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface |
2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish |
Hot rolled (HR), Cold rolled Tube (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form |
Round tube Square tube Rectangular tube etc. |
| Surface |
Characteristic |
Summary of Manufacturing Method |
Application |
| NO.1 |
Silvery white |
Hot rolled to specified thickness |
Do not need to have a glossy surface use |
| lackluster |
| NO.2D |
Silvery white |
After cold rolling, heat treatment and pickling are carried out |
General material, deep material |
| NO.2B |
Gloss is stronger than No.2D |
After No.2D treatment, the final light cold rolling is carried out through the polishing roller |
The general material |
| BA |
As bright as a sixpence |
No standard, but usually a bright annealed surface with high reflectivity. |
Building materials, kitchen utensils |
| NO.3 |
Rough lapping |
Grind with 100~200# (unit) strop tape |
Building materials, kitchen utensils |
| NO.4 |
Intermediate grinding |
Polished surface obtained by grinding with 150~180# strop abrasive tape |
Building materials, kitchen utensils |
| NO.240 |
Fine lapping |
Grinding with 240# strop abrasive tape |
kitchenware |
| NO.320 |
Very fine grinding |
Grinding was carried out with 320# strop abrasive tape |
kitchenware |
| NO.400 |
The luster is close to BA |
Use 400# polishing wheel to grind |
General timber, building timber, kitchen appliances |
| HL |
Hairline grinding |
Suitable particle material for hair stripe grinding (150~240#) with many grains |
Building, construction material |
| NO.7 |
It's close to mirror grinding |
Use a 600# rotary polishing wheel to grind |
For art or decoration |
| NO.8 |
Mirror ultrafinish |
The mirror is ground with a polishing wheel |
Reflector, for decoration |
| Chemical composition table of some models of stainless steel |
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| Min. |
|
|
|
|
|
|
|
|
|
| Max. |
≤0.12% |
≤1.00% |
≤0.75% |
≤0.040% |
≤0.030% |
16.00~18.00% |
/ |
≤0.60% |
|
| Stainless steel tube manufacturer |
Stainless steel is a general-purpose steel with good corrosion resistance. Its thermal conductivity is better than that of austenite, the coefficient of thermal expansion is smaller than that of austenite, heat-resistant fatigue, adding stable element titanium, and good weld mechanical properties.
Stainless steel is used for building decoration, fuel burner parts, household appliances and household appliances; steel with free cutting performance is mainly used for automatic lathes, bolts and nuts. The addition of Ti or Nb to the steel reduces the content of C and improves the processing and welding performance. It is mainly used for hot water tanks, heating water systems, sanitary appliances, durable household appliances, bicycle flywheel, etc. |
|
|
Stainless steel welded pipe production process:
Raw materials--slitting--welding pipe making--end trimming--polishing--inspection (printing)--packaging--shipping (warehousing) (decorative welded pipe).
Raw materials - slitting - welding pipe making - heat treatment - correction - straightening - trimming - pickling - hydraulic test - inspection (printing) - packaging - shipping (warehousing) (Welded pipe for industrial piping).
Stainless steel pipe specifications and dimensions table
| Dimensions Standard,weight chart and size schedules of stainless steel Tube |
| Tube Size(mm) |
Tube Weight per Unit Area(kg/m) |
| 6*1 |
0.125 |
| 6*1.5 |
0.168 |
| 8*1 |
0.174 |
| 8*1.5 |
0.243 |
| 10*1 |
0.224 |
| 10*1.5 |
0.318 |
| 12*1 |
0.274 |
| 12*1.5 |
0.392 |
| 12*2 |
0.498 |
| 14*1 |
0.324 |
| 14*2 |
0.598 |
| 14*3 |
0.822 |
| 16*2 |
0.697 |
| 16*3 |
0.971 |
| 17*3 |
1.046 |
| 18*1 |
0.423 |
| 18*1.5 |
0.617 |
| 18*2 |
0.797 |
| 18*3 |
1.121 |
| 20*1 |
0.473 |
| 20*2 |
0.897 |
| 20*3 |
1.27 |
| 21*3 |
1.345 |
| 22*2 |
0.996 |
| 22*2.5 |
1.214 |
Application requirements
1-Automobile industry
Stainless steel is mainly used in the exhaust system, accounting for more than 1/2 of the total stainless steel consumption in automobiles, and 80% is ferritic stainless steel. Commonly used steel types for exhaust systems include 409L, 436L, etc. Car mufflers mainly use stainless steel welded pipes.
2-Transportation of fluids such as water and gas
Stainless steel pipes and their water delivery equipment are the most advanced basic water purification materials in the world today. They have strong anti-corrosion properties that cannot be compared with cast iron pipes, carbon steel pipes, plastic pipes, etc.
3-Equipment manufacturing and repair
This type of industry mainly uses sanitary or antibacterial grade stainless steel pipes. Hygienic seamless pipes made of imported SUS304 and 316L can meet the special requirements of various media in the food and biopharmaceutical fields. The demand is increasing in the fields of kitchen equipment, workbenches and utensils for the food industry, medical equipment, tableware and towel racks for daily life, and brackets for refrigerated cabinets.
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