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304 316L 309 Stainless Steel Tube / Thick Wall Round Seamless Stainless Steel Tubing

304 316L 309 Stainless Steel Tube / Thick Wall Round Seamless Stainless Steel Tubing
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Product: Manufacturers Sell 304 316L 309 Stainless Steel Tube
Standard: ASTM A312 & A554
Grade: 304 316L 321 310S 430 2205
Surface: Mill Or Bright
Technique: Cold Drawn
Shape: Round.square.pipe
Type: Welded, Seamless
Thickness: 0.3mm ~ 3mm
OD: 6mm ~ 219mm
Length: Max 18m
High Light:

stainless steel seamless pipe


seamless steel pipe

Basic Infomation
Place of Origin: CHINA
Brand Name: HAOSTEEL
Certification: ISO9001 SGS
Model Number: HSRT304 304L 316 316L 321
Payment & Shipping Terms
Packaging Details: Woven bags and plastic strips inside packing, wooden / iron pallet and steel strips outside packing.
Delivery Time: 5-10 working days after order confirmed and receive deposit
Supply Ability: 5000tons per month
Product Description

Manufacturers sell 304 316L 309 stainless steel tube


HAOSTEEL is one of the most professional manufacturer and supplier of stainless steel Tube.Stainless steel tube can be divided into seamless tube and welded tube according to production mode. Seamless tube can be divided into hot rolled tube, cold rolled tube, cold drawn pipe and extruded tube.The welded pipe is divided into straight welded pipe and spiral welded tube.



304 stainless steel pipe introduction: in the air or chemical corrosion medium can resist corrosion of a kind of high alloy steel, 304 stainless steel pipe is a beautiful surface and corrosion resistance is good, do not have to go through the plating color and other surface treatment, and play the inherent stainless steel surface performance, the use of a variety of steel.304 is a universal stainless steel, which is widely used in the manufacture of equipment and parts requiring good overall performance (corrosion resistance and formability).304 stainless steel is a brand of stainless steel manufactured according to ASTM standard.304 is equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel.


Annealing solid solution state of 316L stainless steel tube material: NO.1, 2b, N0.4,HL and other surface states.316L is a kind of stainless steel containing molybdenum. Due to the molybdenum in the steel, the overall performance of the steel is better than 310 and 304 stainless steel. At high temperature, when the concentration of sulfuric acid is lower than 15% or higher than 85%, 316L stainless steel has a wide range of applications.316L stainless steel also has good resistance to chloride erosion, so it is commonly used in the Marine environment.
The maximum carbon content of 316L stainless steel is 0.03, which can be used for welding where annealing is not possible and where maximum corrosion resistance is required


Welded stainless steel pipe referred to as stainless steel welded pipe, commonly used steel or steel band after the unit and mold crimp forming of the steel pipe.Welding steel pipe production process is simple, high production efficiency, variety and specification, equipment investment is less, according to the welding form divided into straight welded pipe and spiral welded pipe.It can be divided into general welded pipe, heat exchanger pipe, condenser pipe, galvanized welded pipe, oxygen-blown welded pipe, wire bushing, metric welded pipe, roller pipe, deep well pump pipe, automobile pipe, transformer pipe, welded thin-wall pipe, welded special-shaped pipe and spiral welded pipe


Chemical composition:

Chemical composition Element 201 202 304 316 S31803 S32750  
C ≤0.15 ≤0.15 ≤0.08 ≤0.08 ≤0.030 ≤0.030  
Si ≤1.00 ≤1.00 ≤1.00 ≤1.00 ≤1.00 ≤0.80  
Mn 5.5-7.5 7.5-10.0 ≤2.00 ≤2.00 ≤2.00 ≤1.20  
P ≤0.060 ≤0.060 ≤0.045 ≤0.045 ≤0.030 ≤0.035  
S ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.020 ≤0.020  
Cr 16-18 17-19 18-20 16-18 21-23 21-23  
Ni 3.5-5.5 4.0-6.0 42958 43022 4.5-6.5 6.0-8.0  
Mo       2.0-3.0 2.5-3.5 3.0-5.0  
N ≤0.25 ≤0.25     0.08-0.2 0.24-0.32  
Cu           ≤0.50  
Mechanical properties Material Item 201 202 304 316 S31803 S32750
Tensile Strength (MPa) ≥655 ≥620 ≥515 ≥515 ≥620 ≥800
Yield Strength (MPa) ≥260 ≥310 ≥205 ≥205 ≥450 ≥550
Elongation (%) ≥35 ≥35 ≥35 ≥35 ≥25 ≥15
Hardness (HV) ≤230 ≤230 ≤200 ≤200 ≤303 ≤323



Material SS201 SS301 SS304 SS316L SS316 SS304L
Surface Finish 400G 500G 600G or 800G Mirror Finish,Golden Mirror Finish
180G,320G,400G Satin/Hairline Finish / Mill Finish
Thickness (mm) 0.3~2.0mm
Packing Each pipe packed into 1 pp bag
According to pipe size,few pipes packed into tight Nylon pack
Round pipe Size(mm) Φ9.5 Φ12.7 Φ15.9 Φ19.1 Φ20 Φ22.2 Φ25.4 Φ30
Φ31.8 Φ38.1 Φ42.4 Φ45 Φ48 Φ50.8 Φ63.5
Φ76.2 Φ102 or customized
Square pipe Size(mm) 13x13 15x15 20x20 25x25 30x30 38x38 40x40 50x50 60x60
80x80 or customized
Rectangle pipe Size(mm) 20x5 30x5 40x5 50x5 10x10 20x10 30x10 40x10 50x10 15x25
20x40 15x30 20x30 50x30 25x38 25x50 30x60 40x80 60x80
45x75 45x95 50x100 60x120 60x40 or customized.
Slotted Round pipe(mm)
(Double side or Single
Φ38(15+15) Φ42.4(15+15) Φ42.4(20+15) Φ42.4(24+24)
Φ48.3(15+15) Φ48.3(20+32) Φ48.3(27+30) Φ50.8(15+15)
Φ50.8(20+20) Φ60(20+20) Φ60(25+25) Φ63.5(15+15)
Φ63.5(20+20) Φ63.5(23+24) Φ76(25+25) Φ76(38+45)
Φ76(25+25) or customized
Slotted Square pipe(mm)
(Double side or Single
40x40(15+15)slot 40x40(20+20)slot 50x25(15+15)slot
50x50(15+15)slot 50x50(20+20)slot 60x40(15+15)slot
60x40(24+24)slot 75x45(35+25)slot 75x45(35+28)slot
25x21(14+14)slot 75x45(20+25)slot 75x45(25+25)slot
Slotted Ellipse pipe(mm)
(Double side or Single
Ellipse 80x40(24+24)slot Ellipse 110x40(33+26)slot
Ellipse 60x40(20+20)slot Ellipse110x40(33+26)slot
Ellipse 87x65(24+38)slot Ellipse 93x57(25+25)slot
Ellipse100x52(45+40)slot or customized


Product show

 304 316L 309 Stainless Steel Tube / Thick Wall Round Seamless Stainless Steel Tubing 0304 316L 309 Stainless Steel Tube / Thick Wall Round Seamless Stainless Steel Tubing 1

Stainless steel pipe is a kind of economic cross section steel, is an important product of iron and steel industry, which can be widely used in decorative and industrial life, many people on the market for making stair handrail, protective Windows, railings, furniture, etc., common are two kinds of material for 201 and 304.

304 stainless steel is the most widely used chromium - nickel stainless steel, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties.Corrosion resistance in the atmosphere. In the case of industrial atmosphere or heavily polluted areas, timely cleaning is required to avoid corrosion.Suitable for food processing, storage and transportation.It has good machining performance and weldability.
Use of 316L stainless steel tube

Paper pulp and paper equipment heat exchanger, dyeing equipment, film processing equipment, pipes, external building materials in coastal areas, as well as the use of advanced watch chain, case and so on.Sea water equipment, chemical, dye, paper, oxalic acid, fertilizer and other production equipment;Photography, food industry, coastal facilities, ropes, CD poles, bolts, nuts
According to use can be divided into oil well pipe (casing, tubing and drill pipe, etc.), line pipe, boiler pipe, mechanical structure, hydraulic prop, cylinder pipe, geological, chemical pipe (high pressure chemical fertilizer pipe, oil cracking pipe) and tube for ships, etc.
In addition, it is also widely used in the manufacture of mechanical parts and engineering structures in the light of bending and torsional strength and light weight.


Our service
1) PERFECT QUALITY. All the SUS 304 production lines equipment are new machines which can maintain the stable and better quality than the whole market.
2) HIGH CORROSION RESISTANCE. With standard chemical compositions, our pipes are able to last longer time than others.
3) BETTER STRETCH BENDING STRENGTH. All material are 100% virgin raw material, no recycle material at all, which enhance our pipes have better physical performance.
4) EXPERIENCE. Over 20 years of production experience of pipe production, 10 years of exporting, we are able to full fill any customers’ basis request and help them to enlarge the market sales.

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Fax : 86-021-51862951
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