Type: | Seamless |
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Technique: | Hot Rolled |
Material: | Stainless Steel |
Surface Treatment: | Polished |
Usage: | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
Section Shape: | Round |
Customization: |
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Stainless Steel Pipes | |
Type | 201,304,304L,316,316Ti,316L,321,309s,310,904L,410,410s,409,420 420J2,430,444,2205,2507,2304,301,317 |
Surface Treatment | Bright,Pickling white,Brushed,Color,perforated surface |
Thickness | 1mm-150mm |
Technology | seamless ,welded |
Shape | Round,square,rectangle,oval |
Surface
|
Feature | Manufacturing Method | Usage |
NO.1 | Silvery white, dull | Hot rolled to specified thickness | It does not need to have a shiny surface |
NO.2D | Silvery white | After cold rolling, heat treatment and pickling are carried out | Common material, deep drawing wood |
NO.2B | Luster is stronger than No.2D | After NO.2D treatment, a final light cold rolling is carried out on a polishing roll | Common material |
BA | as bright as a sixpence | Non standard, but usually bright annealed surface finish with high surface reflectivity. | Building materials, kitchen utensils |
NO.4 | Grind | A polished surface obtained by grinding with a 150~180# abrasive belt | Building materials, kitchen utensils |
NO.240 | Fine grind | Grind with a 240# strop abrasive belt | kitchen utensils |
NO.320 | Very fine grinding | Grind with a 320# strop abrasive belt | kitchen utensils |
NO.400 | The gloss is close to BA | Grind with 400# polishing wheel | Common material,Building materials, kitchen utensils |
HL | Hairline grinding | It has a large number of whetstone grains when it is used for grain grinding (150~240#) | Buildings, building materials |
NO.8 | Mirror | The mirror is ground with a polishing wheel | Reflector, decorative |
CHEMICAL COMPOSITION | ||||||||||
Classification | Grade | Chemical Composition(%) | ||||||||
C | Si | Mn | P | S | Ni | Cr | Mo | N | ||
Austenitic stainless steel | 201 | ≤0.15 | ≤1.00 | 5.50-7.50 | ≤0.060 | ≤0.030 | 3.50-5.50 | 16.00-18.00 | ≤0.25 | |
301 | ≤0.15 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 6.00-8.00 | 16.00-18.00 | |||
304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 8.00-10.50 | 18.00-20.00 | |||
304L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 9.00-13.00 | 18.00-20.00 | |||
305 | ≤0.12 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 10.50-13.00 | 17.00-19.00 | 0.12-0.2 | ||
309S | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 12.00-15.00 | 22.00-24.00 | |||
310S | ≤0.08 | ≤1.50 | ≤2.00 | ≤0.045 | ≤0.030 | 19.00-22.00 | 24.00-26.00 | |||
316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 10.00-14.00 | 16.00-18.00 | 2.00-3.00 | ||
316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 12.00-15.00 | 16.00-18.00 | 2.00-3.00 | ||
317 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 12.00-15.00 | 18.00-20.00 | 3.00-4.00 | ||
321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 11.00-15.00 | 17.00-19.00 | |||
Ferritic stainless steel | 409 | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.030 | ≤9.00-13.00 | 10.50-11.75 | ||
430 | ≤0.12 | ≤0.75 | ≤1.00 | ≤0.040 | ≤0.030 | ≤0.60% | 16.00-18.00 | |||
430LX | ≤0.03 | ≤0.75 | ≤1.00 | ≤0.040 | ≤0.030 | 16.00-18.00 | 0.75-1.25 | 0.1-1.0 | ||
Martensitic stainless steel | 410 | ≤0.15 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 11.50-13.50 | |||
410S | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 11.50-13.50 | ||||
420 | 0.16-0.25 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.00-14.00 | ||||
440A | 0.60-0.75 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.00-18.00 | ||||
duplex stainless steel | 2205 | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 4.50-6.50 | 21.00-24.00 | 0.08-0.2 | |
2507 | ≤0.03 | ≤0.80 | ≤1.20 | ≤0.035 | ≤0.020 | 6.00-8.00 | 24.00-26.00 | 3.00-5.00 | 0.24-0.32 |
Stainless steel seamless pipe is a kind of hollow section, no joints around the strip of steel. The thicker the wall thickness of the product, the more economical and practical it is, the thinner the wall thickness, its processing costs will rise substantially.
The process of the product determines its limited performance. Generally, the precision of seamless steel pipe is low: uneven wall thickness, low internal surface brightness, high measuring cost, and the internal surface and pitting and black spots are not easy to remove; Its detection and shaping must be handled offline. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials.
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