Brand Name︰ASTM A249,ASTM A269,ASTM A312,ASTM A554,EN10216-7
Country of Origin︰-
Unit Price︰US $ 7.8 / Kg
Minimum Order︰500 Kg
|S = SEAMLESS. W = WELDED. S & W = SEAMLESS & WELDED.|
|ASTM/AISI||UNS||EN||C (%)Max||Cr (%)||Ni (%)||Mo (%)||Others (%)||Manufactured|
|316Ti||S31635||1.4571||0.08||16.0-18.0||10.0-12.0||2.0-3.0||Ti: 5x(C+N)min, 0.70 max||S&W|
|321||S32100||1.4541||0.08||17.0-19.0||9.0-12.0||-||Ti: 5xC min, 0.70 max||S&W|
|321H||S32109||1.4940||0.04-0.10||17.0-19.0||9.0-12.0||-||Ti: 4xC min, 0.60 max||S&W|
|347||S34700||1.4550||0.08||17.0-19.0||9.0-13.0||Co: 10xC min, 1.00 max||S|
|347H||S34709||1.4912||0.40-0.10||17.0-19.0||9.0-13.0||Co: 8xC min, 1.00 max||S|
|S31254||1.4547||0.02||19.5-20.5||17.5-18.5||N:0.18-0.22 Cu: 0.50-1.00||S&W|
|S32304||1.4362||0.03||21.5-24.5||3.0-5.5||N:0.05-0.20 Cu: 0.05-0.60||S&W|
|S32750||1.4507||0.03||24.0-26.0||6.0-8.0||N: 0.24-0.32 Cu: 0.50 max||S&W|
|S32760||1.4501||0.05||24.0-26.0||6.0-8.0||N: 0.20-0.30 Cu: 0.50-1.00||S&W|
|N06625||2.4856||0.10||20.0-23.0||58.0 min||Nb+Ta: 3.15-4.15||S|
|N06985||2.4619||0.015||21.0-23.5||48.0 min||Cu: 1.5-2.5 Nb+Ta: 0.50max||S|
|N08800||1.4876||0.10||19-23.0||30.0-35.0||(Al, Ti): 0.15-0.60||S|
|N08810||1.4958||0.05-0.10||19-23.0||30.0-35.0||(Al, Ti): 0.15-0.60||S|
|N08825||2.4858||0.05||19-23.0||38.0-46.0||Al:0.2max Ti:0.6-1.2 Cu:1.5-3.0||S|
|N04400||2.4360||0.30||-||68.0 min||Cu: 28.0-34.0||S|
|Chemical Composition is According to ASTM/ASME Specifications.|
ASTM A 249/A 249M Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser tubes
ASTM A269/A269M, ASME SA269/SA269M Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
ASTM A 270 Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing
ASTM A312/A312M, ASME SA312/SA312M Specification for Seamless and Welded Austenitic Stainless Steel Pipes
ASTM A 358/A 358M Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service
ASTM A409/SA409 Welded Large Diameter Austenitic Steel Pipe for Corrosive or High Temperature Service
ASTM B515/ASME SB515
ASTM B516, ASME SB516,
ASTM A 554 Specification for Welded Stainless Steel Mechanical Tubing
ASTM A632 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
ASTM A 688 / SA 688 For Welded feed water heater ‘U’ Tubes
ASTM A731 / A731M Seamless and Welded Ferritic and Martensitic Stainless Steel Pipe
ASTM A 778 Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products
ASTM A789/A789M, ASME SA789/SA789M Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A790/A790M, ASME SA790/SA790M Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASTM A 450/A 450M Specificaion for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
ASTM A530/A530M Standard Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
ASTM A 999/A 999M Specification for General Requirements for alloy and Stainles Steel Pipe
ASTM A813/A813M Standard Specification for Single- or Double-Welded Austenitic Stainless Steel Pipe
ASTM A814/A814M Standard Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe
ASTM A999/A999M Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
ASTM A1016/A1016M Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
DIN 2463-1Welded austenitic stainless steel tubes: dimensions and masses per unit length
DIN 17455 Welded circular stainless steel tubes with general quality requirements -Technical delivery conditions
DIN 17457 Welded circular austenitic stainless steel tubes subject to special requirements
EN 10216-5 Welded Stainless Steel Tube
EN 10217-7 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
EN 10296-2 Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
AS 1528 Tubes (Stainless Steel) and Tube Fittings for the Food Industry.
JIS G 3447 Stainless Steel Sanitary Pipes
G 3448 Light Gauge Stainless Steel Tubes for Ordinary Piping
G 3459 Stainless Steel Pipes
G 3468 Large Diameter Welded Stainless Steel Pipes
G 3463 Stainless Steel Boiler and Heat Exchanger Tubes
G 3446 Stainless Steel Pipes for Machine and Structural Purposes
Mil T Standards:
Mil T 8606,
Mil T 8808 Type 2
Mil T 6845 Type 2
Our Tube Manufacturing Services Include:
· In-house comprehensive testing and inspection.
· Ink Jet product marking
· Tubes cut to length from 25mm to 20 metre
· Tube calibration
· Inline eddy current testing
· Tube polishing
· Dull, satin, bright, super mirror
· Annealing & black oxidizing
· Coiled tubes in 100m - 250m coils fully annealed.
All of the tubing we produce begins its life as a welded tube. From there, we can do additional processing to the tube to reduce or essentially eliminate any evidence of a weld seam, or to achieve other goals such as very tight and consistent tolerances. Our welded and drawn over mandrel tubing is nearly indistinguishable from seamless tubing, and is often used as a less expensive substitute for it. Our five types of tubing are:
•Outer Diameter Conditioned
•Cold Drawn Outer Diameter
•Welded & Drawn Over Mandrel
Each type of tube undergoes different production processes that impact the dimensions and tolerances of a tube's cross section. The size ranges and tolerances available for each tube type are described in detail on the sizes page. Important dimensional terms discussed below include the O.D. (or Outer Diameter), the I.D. (or Interior Diameter), and the Wall Thickness.
As Welded tubing
As Welded tubing is our least expensive product line, and is manufactured by running coils of annealed strip through a cold roll forming process. It is continuously welded using appropriate shielding gases for each alloy to prevent oxidation of the seam. With As Welded tubing, the seam is clearly visible on both the exterior and interior of the tube, but the size of the weld bead is held within strict tolerances.
Typical applications for As Welded tubing include tubular heating elements for both industrial and consumer targeted end products, beverage or fluid transportation systems, mechanical devices, automotive applications, and heat exchange devices.
Outer Diameter Conditioned tubing
OD Conditioned tubing is the first step-up from As Welded tubing. After its initial forming process, which is identical to the process used to create As Welded tubing, OD Conditioned tubing is then run through a process which rounds and blends the exterior weld seam so that it is flush with the exterior of the tube. As a result, it is difficult to see the weld seam on the exterior of an OD Conditioned tube with the naked eye. However, the interior of the tube is not affected and is therefore identical to that of an As Welded tube, and the weld seam remains visible.
OD Conditioned tubing is beneficial when compression fittings, flare fittings, or O-ring seals are used, as the smoother OD surface reduces potential leak paths.
Bead Hammered tubing
Bead Hammered tubing is initially formed with a process identical to that of As Welded tubing, except that an additional, special cold roll forming process with an interior mandrel support is added to smooth both the interior and exterior weld seam. As a result, the seam is nearly invisible on both the exterior and the interior, creating a tube that is an excellent, lower cost substitute for seamless tubing.
Applications for Bead Hammered tubing include anything where interior and exterior smoothness are important, such as certain liquid and gas handling applications, and fabricated applications where exterior fittings require a smooth surface.
Cold Drawn Outer Diameter tubing
CDOD tubing is created by running As Welded tubing through a cold drawing process using a die that is slightly smaller than the starting tube diameter. No interior mandrel support is used for CDOD tubing. The result is a tube with no visible exterior weld seam and which can hold tighter tolerances than As Welded, OD Conditioned, or Bead Hammered tubing. In addition, as is the case with Welded and Drawn over Mandrel tubing, any OD size tube can be created starting at 0.125 inches up to 1.245 inches in increments of 0.001 inch without requiring an extra charge for special tooling.
Applications for CDOD tubing include anything where exterior smoothness and tight tolerances are important, such as certain liquid and gas handling applications, and fabricated applications where exterior fittings require a smooth surface, as well as small orders for unique, non-standard OD sizes where an investment in special tooling is not practical.
Welded and Drawn Over Mandrel tubing
Welded and Drawn tubing is initially formed and welded using the same process as As Welded tubing, except that after it is initially formed it is then run through a drawing process similar to that used to form seamless tubing. The difference from CDOD tubing is that with Welded and Drawn tubing , a mandrel is inserted into the tube to ensure that the interior diameter can be held to a very tight tolerance, and the tube is passed through a die that reduces the outer diameter of the tube and compresses the interior diameter down to the size of the mandrel. This cold drawing process completely eliminates any evidence of the weld seam both internally and extermally. In addition, the process breaks up the cast grain structure of the weld zone, which gives the tube strength and burst pressure ratings equivalent to seamless tube while keeping the cost lower than the cost of seamless tubing. In addition, virtually any size of interior or exterior diameter can be created in increments of 0.001 inch, with very tight tolerances.
Welded and Drawn tubing is ideal where maximum strength or corrosion resistance is required, or where special temper characteristics, unique sizes, or very tight exterior and interior diamter tolerances are required.
offers a variety of finishing options including annealing, stenciling, bead rolling, deburring, coiling, and polishing. We can provide either standard or score and break cut styles, and also can provide a variety of packaging options suitable for domestic or international shipping. We specialized in unique, made-to-order tubing and can custom engineer a solution for virtually any application.
We is proud to offer full soak, bright annealing as an option for any of its tubing products. Full soak bright annealing provides the softest possible tubing suitable for the most challenging bending applications. Our bright anneal also leaves a finish that is as shiny as possible, which is critical for many applications.
As Welded tubing (either annealed or unannealed) can be provided in coils of up to 500 feet.
Product Types:Stainless Steel Pipe, Stainless Steel Hollow Sections, Flat-Oval Tubes - Elliptical Tubes - Triangular Tubes, Ornamental Pipes and Hollow Sections, Annealed Pipes, Automotive Pipes, Evapora
EN 1.4301 - TP304 EN 1.4571 - TP316TI
EN 1.4828 - TP309 EN 1.4311 - TP304LN
EN 1.4845 - TP310S EN 1.4307 - TP304L
EN 1.4432 - TP316L EN 1.4306 - TP304L
EN 1.4404 - TP316L EN 1.4438 - TP317L
EN 1.4401 - TP316 EN 1.4436 - TP316
EN 1.4541 - TP321 EN 1.4435 - TP316L
EN 1.4833 - TP309S
Superferritic and Superaustenitic Steels
AL 29-4C® - UNS S44735 UNS N08367
EN 1.4547 - 254SMO EN 1.4529 - 1925HMO®
EN 1.4565 - S34565 EN 1.4539 - TP904L
EN 1.4162 - LDX 2101® EN 1.4362 - S32304
EN 1.4410 - S32750 EN 1.4462 - S31803