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Stainless Steel Pipe and Tube

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Stainless Steel Pipe and Tube

Qinghe Steel’s stainless steel pipe inventory features both seamless and welded pipe that is cold finished, annealed and pickled in a range of diameters and stock lengths. All inventory can be cut to your exact size requirements, and is available to ship worldwide from a number of  locations.

What Stainless Steel Pipe and Tube Grades We Have!

Terms of price: EXW, FOB, CFR, CIF

Product customization available

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Order your stainless pipe and tube from Us

Our stainless steel pipe & tube are available in various sizes, and are available in custom cut sizes to meet your individual requirements.

  • AvailableGrade — 200 Series, 300 Series(303, 304, 310, 309, 316, 317, etc), 400 Series stainless steel and more!
  • Available Standards— ASTM, AISI, JIS, ISO, EN, BS, GB,
  • Available Finishes— No.1, 2D, 2B, BA, 3, No.4, No.240, No.320, No.400, HL, No.7, or as your Request
  • Surface— Pickled, Black, Bright, Polishing, Blasting, etc
  • Length(m)— 6m, 8m, 3m , or as your Request

Get Your Metal Cut-to-Size!

We’ll cut your order to your exact specifications. No need to buy full lengths! Contact us

Top 6 Services

Technical Service
Committed to solving your steel problems, calculating steel, and providing a free quote
Custom Metal Services
We can be customized according to customer technical requirements. and provide a variety of surface treatments
Purchase Process Service
Pre-sale, in-sale, and after-sale full-service, allowing you to have a pleasant purchase journey
Quality Control
We have a strict quality inspection system, all the steel products are with the original mill material report, and the third-party quality tests are also acceptable.
Packaging & Delivery Service
Various packaging options are available; professional loading teams, and shipping companies ensure that the goods arrive safely and quickly.
Factory Inspection Service
Welcome to visit the factory, we also provide 3D factory inspection service. Email us for your next China journey.

Types

  • Stainless Steel Pipe Tube
  • Stainless Steel Square Tube
  • Stainless Rectangular Pipe
  • Stainless Steel Round Tube

The most widely used of the stainless and heat resisting steels, Stainless steel 304 offers good corrosion resistance to many chemical corrodents as well as industrial atmospheres. 304 Stainless Steel Pipe has very good formability and can be readily welded by all common methods.

Stainless steel pipe exhibit such characteristics as corrosion resistance, excellent weldability, and good formability.

Surface Finish

A comprehensive collection of finishes is also available from QINGHE STEEL when purchasing stainless steel pipe & tube. Popular finish options include:

  • Also cold-rolled, the 2D finish has a matte surface with low reflectivity.
  • HR / No.1 . This hot-rolled finish has a scaled appearance and so is ideal where the final aesthetic is not an important concern.
  • BA / 2R. Cold rolled and annealed in a controlled atmosphere to retain a highly reflective finish. This highly-reflective finish is achieved by annealing the alloy in a carefully controlled atmosphere.
  • Smooth finish, reflective grey sheen. Most widely used surface finish. The most popular surface finish, 2B offers a smooth appearance with a grey, reflective sheen.

Stainless Steel Pipe & Tube Finish Finish

Standard specifications for stainless steel pipe

Inch DN

(mm)

 OD

(mm)

 SCH5S SCH10S SCH10 SCH20 SCH30 SCH40 SCH60 SCH80 SCH100 SCH120 --
1/8 DN6 10.3 1.24 1.73 2.42
1/4 DN8 13.7 1.65 2.24 3.02
3./8 DN10 17.1 1.65 2.31 3.2
1/2 DN15 21.3 1.65 2.11 2.77 3.73
3/4 DN20 26.7 1.65 2.11 2.87 3.91
1 DN25 33.4 1.65 2.77 3.38 4.55
1 1/4 DN32 42.2 1.65 2.77 3.56 4.85
1 1/2 DN40 48.3 1.65 2.77 3.68 5.05
2 DN50 60.3 1.65 2.77 3.91 5.54
2 1/2 DN65 73.0 2.11 3.05 5.16 7.01
3 DN80 88.9 2.11 3.05 5.49 7.62
3 1/2 DN90 101.6 2.11 3.05 5.74 8.08
4 DN100 114.3 2.11 3.05 6.02 8.58 11.13
5 DN125 141.3 2.77 3.4 6.55 9.53 12.7
6 DN150 168.3 2.77 3.4 7.11 10.97 14.27
8 DN200 219.1 2.77 3.76 6.35 7.04 8.18 10.31 12.7 15.09 18.26
10 DN250 273.1 3.40 4.19 6.35 7.8 9.27 12.7 15.09 18.26 21.44
12 DN300 323.9 3.96 4.57 6.35 8.38 10.31 14.27 17.48 21.44 25.4
14 DN350 355.5 3.96 4.78 6.35 7.92 9.53 11.13 15.09 19.05 23.83 27.79
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Tolerance

Item
Specification		 Outside diameter Wall thickness Roundness Straightness Length
JIS G3459 Tolerance O.D.[mm]<30 [mm]+0.3mm O.D.[mm] ≥30 [mm]+1% 2mm+0.2mm 2mm+10% - - Not less than definite cut  Length
ASTM A312 O.D.[mm] ≤48.26 >48.26 ≤114.3 >114.3 ≤219.08 >219.08 ≤457.2 +12.5% - - definite cut  Length +6.4mm -0mm
[mm] +0.4 -0.4 +0.8 -0.8 +1.6 -0.8 +2.4 -0.8

Stainless Steel Pipe Applications:

  • Food processing
  • Textile operations
  • Breweries
  • Water treatment plants
  • Oil and gas processing
  • Fertilizers and pesticides
  • Chemical applications
  • Construction
  • Pharmaceuticals
  • Automotive components

Stainless Steel Pipe & Tube applications

Qinghe Steel stocks a wide range of stainless steel tube pipe sizes for your specific project needs. We offer quick delivery throughout the world. Contact us today to discuss stainless steel pipe and tube for your project needs.

FAQ

What’s the difference between stainless steel pipes and stainless tubes?

The term “pipe” and “tube” are often used to describe the same product, but it is important to know the difference. Though they share the same cylindrical shape, steel pipes are measured by the interior diameter (ID), whereas steel tubes are measured by the outside diameter (OD) and wall thickness. Another difference is that pipes are used to transport fluids and gases, while tubes are used to build parts or structural components.

Does Stainless Steel rust?

Stainless Steel is very corrosion resistant because it is alloyed with Chromium which reacts to oxygen and creates a rust resistant barrier. This is not to say that stainless will never rust, in certain conditions it may still corrode. For example, 304 stainless is the most common stainless alloy, but in marine environments it will eventually rust. 316 stainless alloy was created with more nickel to be more corrosion resistant in those Marine environments. Other stainless alloys are specialized to be more corrosion resistant in a number of different situations, i.e. 310 alloy is corrosion resistant in high heat environments.

Why Choose Stainless Steel?

  • Stainless steel extrusions are used for these types of profiles due to the materials’ wear and corrosion resistance. In addition to being essentially rustproof, some grades of stainless steel are also immune to acids and/or other highly corrosive compounds, even in high concentrations.
  • Stainless steel, in general, is a very low maintenance material. It can be repeatedly steam-cleaned or sterilized without degrading and does not require painting or other surface finishes. Stainless steel exhibits high electrical resistance, as well as low thermal conductivity.
  • However, due to its hardness, stainless steel is not easy to extrude. This dictates that wall thickness must be greater than those of extruded shapes made from most other alloys.

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Minimum Total Quantity Per Order is 1 ton.