ASTM A312 TP 321 Stainless Steel Tubing Seamless 0.5mm - 80mm Welded

Product Specification

321 Stainless Steel Seamless Pipe stainless steel seamless tubing Supplier

HAOSTEEL is one of the most professional manufacturer and supplier of 321 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.

Description:

STAINLESS STEEL TUBES, SS 321 SEAMLESS STEEL PIPES, TUBES, SS 321 SEAMLESS TUBES, SS 321 ERW PIPES SUPPLIER, ASTMA554 321 Polished Pipes, ASTM A249 321 Pipes, 14541 Tubes, STAINLESS STEEL 321 WELDED PIPES, UNS S32100 TUBING, 304, 304L, 304H SEAMLESS PIPES, WELDED TUBESASTM A312, ASTM A213, ASTM A249, ASTM A554, ASTM A312 321 Pipes, ASTM A213 321 Pipes

321 Stainless Steel Pipes, premier suppliers of bulk 321 Stainless Steel Pipes We Stock & Supply Stainless steel China. Fast delivery guaranteed for every size 321 Stainless Steel Seamless Pipes, 321 Stainless Steel Pipes, largest range of 321 Stainless Steel Tubes Suppliers Seamless Pipe for the Chemical Industry Are you Looking for a Reliable Source for Buying 321 Stainless Steel Pipes and 321 Stainless Steel Tubes Haosteel offer Great Discount on High Quality 321 Stainless Steel Pipes and 321 Stainless Steel Tubes

Type 304 304L 304H | Type 316 | Type 316L | Type 316H | Type 317L | Type 321 | Type 347 | Type 410 | Type 904L

Grade specifications for 321 grade stainless steel

ASTM A312 TP 321 Stainless Steel Seamless Pipe Dimensional Range Specification

ASTM A312 TP 321 Stainless Steel Seamless Pipe Available Size

ASTM A312 TP 321 Stainless Steel Seamless Pipe Test Certificate

ASTM A312 TP 321 Stainless Steel Seamless Pipe Value Added Service

ASTM A312 TP 321 Stainless Steel Seamless Pipe Packaging and Transportation

ASTM A312 TP 321 Stainless Steel Seamless Pipe other Available Grades

ASTM A312 TP 321 Stainless Steel Seamless Pipe Warehouse & Inventory

ASTM A312 TP 321 Stainless Steel Seamless Pipe Price

Chemical composition ranges for 321 grade stainless steel

Specification:

Surface Finish of stainless steel pipe

Mechanical properties of 321 grade stainless steel

Draw & Expansion as per required Size & Length Polish (Electro & Commercial) Heat Treatment

Haosteel have a large range of ASTM A312 TP 321 Stainless Steel Seamless Pipe We offers a wide range of Round Pipes & Tubes, Coil, ‘U’ Shape tubes, Square pipes & tubes, Rectangular tubes, ASTM A312 TP 321 Stainless Steel Seamless Pipe, 316 Seamless Tubing, 316 Seamless Pipe, ss 316l Seamless Pipe, 321 Seamless Tube, 321 Seamless Stainless Steel Tubing & Hydraulic Tube etc. Haosteel is committed to upgrade the capabilities of its technical and administrative staff through formal training and continuous technical quality awareness. Our all ASTM A312 TP 321 Stainless Steel Seamless Pipe are tested in accordance to internationally recognized standards or our own more stringent internal test procedures, which is developed considering the harsh field conditions. In addition to this we also offer specific testing to our client’s requirement.

We can meet most ASME, ASTM, and other specifications, and can cross-reference to most international standards, including full 3.1/3.2 Certifcation and NACE requirements. In order to guarantee these standards, we are certified in accordance with the strict guidelines of ISO 9001:2008.

Type 321 is a standard austenitic 18/8 chromium nickel alloy with the addition of Titanium making it an excellent choice in elevated temperature environments.

The titanium stabilises the material removing its susceptibility to the effects of intergranular corrosion. 321 is therefore the stainless steel material of choice for applications in working environments up to 9000 C.

A drawback of Type 321 is that the titanium does not transfer well across a high temperature arc, so it is not recommended as a welding consumable.

In such instances, 347 is the preferred choice as the Niobium performs the same function as Titanium but can be still transferred across a high temperature arc. Type 347 is therefore the consumable of choice for welding Grade 321.

The steel has excellent forming and welding qualities and excellent toughness even at cryogenic temperatures. If you are looking for a stainless steel to provide resistance to intergranular corrosion, 304L is the normal choice as it is a more commonly used and supplied steel.

321 Stainless Steel Pipes and Tubes
Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-8500C. Grade 321 is the grade of choice for applications in the temperature range of up to about 9000C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.

Grade 321H is a modification of 321 with a higher carbon content, to provide improved high temperature strength.
A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred - the niobium performs the same carbide stabilization task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.

Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness,even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.

Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 5000C.

However, 321 is a much better option in operating temperature environments in excess of 5000 C and therefore have its own merits.

Note that Type 321 does not polish well so it is not practical to use this material as cosmetic architectural feature.

Stainless Steel DIN 1.4541 / 1.4878 Seamless TubesStockist, SS UNS S32100 / S32109 Seamless Tubing, SS 321 Cold Drawn Tubes, SS 321H Seamless Tubes, SS 321 Seamless Tubing

STAINLESS STEEL ASTM A312 TP 321 PIPES, 1.4541 STAINLESS STEEL TUBES, SS 321 SEAMLESS PIPES, TUBES, 321 SEAMLESS TUBES, SS321 ERW PIPES SUPPLIER, ASTMA554 321 Polished Pipes, ASTM A249 321 Pipes, 14541 Tubes, STAINLESS STEEL 321 WELDED PIPES, UNS S32100 TUBING, 304, 304L, 304H SEAMLESS PIPES, WELDED TUBESASTM A312, ASTM A213, ASTM A249, ASTM A554, ASTM A312 321 Pipes, ASTM A213 321 Pipes .

Typical Uses

Heat exchangers

High temperature steam service

High temperature chemical process

321/321H Stainless Steel Pipes, Tube Stock and Supply Range

General Properties of 321 Stainless Steel Pipes and Tubes
Alloys 321 (S32100) and 347 (S34700) are stabilized stainless steels which offer as their main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 15000F (427 to 8160C). Alloy 321 is stabilized against chromium carbide formation by the addition of titanium. Alloy 347 is stabilized by the addition of columbium and tantalum.

While Alloys 321 and 347 continue to be employed for prolonged service in the 800 to 15000F (427 to 8160C) temperature range, Alloy 304L has supplanted these stabilized grades for applications involving only welding or short time heating.
Alloys 321 and 347 stainless steels are also advantageous for high temperature service because of their good mechanical properties. Alloys 321 and 347 stainless steels offer higher creep and stress rupture properties than Alloy 304 and, particularly, Alloy 304L,which might also be considered for exposures where sensitization and intergranular corrosion are concerns. This results in higher elevated temperature allowable stresses for these stabilized alloys for ASME Boiler and Pressure Vessel Code applications. The 321 and 347 alloys have maximum use temperatures of 15000F (8160C) for code applications like Alloy 304, whereas Alloy 304L is limited to 8000F 4260C).

Production, Supply, Stock Range of Stainless Steel 321, 321H Pipes and Stainless Steel 321H Tubes

Outside Diameter:6.00 mm OD up to 250 mm OD, Sizes up to 12” NB available Ex-stock, OD Size Steel Tubes available Ex-stock

Thickness Range:0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Type: Seamless / ERW / Welded / Fabricated / CDW

Form: Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes

Length: Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded

End Protection: Plastic Caps | Outside Finish: 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements

Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

ASTM A312 TP 321 Stainless Steel Seamless Pipe packaging

We have a full range of expertise for Export Packing. We can pack ASTM A312 TP 321 Stainless Steel Seamless Pipe so that they arrive ready for use in perfect condition.321 Stainless Steel Pipe and Tube Packing
321 Stainless Steel Seamless Pipes and Tubes is sleeved into plastic bag individually,pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation. If required we arrange for packaging (also for sea freight), supply plastic caps or protection rings at the pipe ends and organise special marking.

ASTM A312 TP 321 Stainless Steel Seamless Pipe Packing standards
 

Packing Standard :

01: single pipes wrapped in shrink foil, pipe ends protected with foil or plastic caps, wooden beams between each pipe layer, bundles secured with plastic strapping.

ASTM A312 TP 321 Stainless Steel Seamless Pipe Packing Standard 02: single pipes wrapped in shrink foil, pipe ends protected with foil or plastic caps, frame construction made of wood, both front-sides closed, frame construction secured with steel strapping.

ASTM A312 TP 321 Stainless Steel Seamless Pipe Packing Standard 03: single pipes wrapped in shrink foil, pipe ends protected with foil or plastic caps, reinforced frame construction made of wood, both front-sides closed, frame construction secured with steel strapping.Our team of project coordinators communicates all relevant facts about inspection, testing and quality control and assures ASTM A312 TP 321 Stainless Steel Seamless Pipe will be supplied against the agreed terms for packaging and transportation. All materials can be prepared for shipping by truck, by bulk vessel or container vessel.

ASTM A312 TP 321 Stainless Steel Seamless Pipe Packing Standard 04: single pipes wrapped in shrink foil, pipe ends protected with foil or plastic caps, wooden box with frame construction, completely closed, box secured with steel strapping.