s-7 flat bars,m-2 rounds_ASTM A269 TP 321 / 321H Stainless Steel Pipes and Tubes ( UNS NO S32100, UNS NO S32109)

ASTM A269 TP 321 / 321H Stainless Steel Pipes and Tubes ( UNS NO S32100, UNS NO S32109)

ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes | ASTM A269 TP 321 / 321H Stainless Steel Seamless Tubes

ASTM A269 TP 321 Stainless Steel Seamless Pipes | ASTM A269 TP 321H Stainless Steel Seamless Pipes | ASTM A269 TP 321 Stainless Steel Seamless Tubes| ASTM A269 TP 321H Stainless Steel Seamless Tubes| ASTM A269 TP 321 / 321H SS Pipes and Tubes

HSH China Manufacturer & Fabricator, Importer, Stockholder, ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes and Tubes, premier suppliers of bulk ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes and Tubes. We Stock & Supply worldwide. Fast delivery guaranteed for every size ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes and Tubes, largest range of ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes and Tubes Suppliers in India.

Grades:
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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.

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.

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

Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports

Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Specials: Sizes and Specifications other than above can be manufactured on request

Why Choose HSH for Stainless Steel 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, WNR 1.4878 Pipes & Tubes?

  1. Short Delivery Times – We are the quickest when it comes to servicing our customers with high quality stainless steel 321/321H pipes and tubes.
  2. Custom Sizes: We can process stainless steel 321/321H pipes and tubes to produce and supply either standard or non-standard stainless steel pipes.
  3. Best Prices: Our prices for stainless steel 321/321H pipes are competitive.
  4. Quality Products: We make sure that our quality of SS 321/321H pipes and tubes are compromised at any cost.
  5. Complete Certification: Our products are supplied with complete certification Mill TC, Test Reports from NABL approved Labs, Hydro Testing.
  6. Pipe Fittings and Flanges: We are a manufacturer of 321 forged pipe fittings, 321 butt weld pipe fittings, 321 compression ferrule fittings, and 321/321H flanges, offering our customers the convenience to purchase all their requirements from one vendor.
  7. Complete Documentation: For our overseas customers in the Middle East, GCC region, South Amercia and the African region we offer our SS 321/321H grade materials with all documents including Invoice, Packing List, Mill Test Certificates, Certificate of Origin and Bill of Lading

Stainless Steel 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, WNR 1.4878 Pipes and Tubes Available Product Forms

  1. SS 321/321H Hydraulic and Instrumentation Tubes
  2. SS 321/321H Coiled Tubing
  3. SS 321/321H Capillary Tubes
  4. SS 321/321H Seam Welded and Cold Redrawn Pipe and Tubes
  5. SS 321/321H Seam Welded, Cold Redrawn and Annealed Pipes and Tubes

321/321H Stainless Steel Pipes, 321/321H Stainless Steel Tubes Value Added Processing Service

  1. 321/321H Stainless Steel Pipe Polishing
  2. 321/321H Stainless Steel Pipe Beveling
  3. Heat Treatment, Annealing, Pickling of SS 321/321H ERW, Seamless Pipes
  4. Ultrasonic Testing of SS 321/321H Pipes
  5. 100% X-Ray Welding for 321/321H Large Diameter Custom Size Stainless Steel Pipes
  6. Drawing Services
  7. Special Testing Requirements Destructive Testing, Non Destructive Testing etc.

Markings on the Stainless Steel 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, WNR 1.4878 Seamless/Welded Pipes

The full identification of the pipe should be continuously marked down its whole length, including:

  1. Nominal Pipe Size (Nominal Bore)
  2. Schedule (Wall Thickness)
  3. Specification
  4. Grade
  5. Method of Manufacture (Seamless or Welded)
  6. Heat Number
  7. Manufacturers Name or Symbol

Background of ASTM A312 TP 321 / 321H 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.

Composition of ASTM A269 TP 321 / 321H Stainless Steel Pipes and Tubes

Typical compositional ranges for grade 321 stainless steels are given in table 1.

Table 1. Composition ranges for 321 grade stainless steel

Grade C Mn Si P S Cr Mo Ni N Other
321 min.
max

0.08
2.00 0.75 0.045 0.030 17.0
19.0
9.0
12.0
0.10 Ti=5(C+N)
0.70
321H min.
max
0.04
0.10
2.00 0.75 0.045 0.030 17.0
19.0
9.0
12.0
Ti=4(C+N)
0.70
347 min.
max
0.08 2.00 0.75 0.045 0.030 17.0
19.0
9.0
13.0
Nb=10(C+N)
1.0

Mechanical Properties of ASTM A269 TP 321 / 321H Stainless Steel Pipes and Tubes

Typical mechanical properties for grade 321 stainless steels are given in table 2.

Table 2. Mechanical properties of 321 grade stainless steel

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217
321H 515 205 40 95 217
347 515 205 40 92 201
321H also has a requirement for a grain size of ASTM No 7 or coarser.

Physical Properties of ASTM A269 TP 321 / 321H Stainless Steel Pipes and Tubes

Typical physical properties for annealed grade 321 stainless steels are given in table 3.

Table 3. Physical properties of 321 grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/0C) Thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

Grade Specification Comparison of 321 Stainless Steel Pipes and Tubes

Approximate grade comparisons for 321 stainless steels are given in table 4.

Table 4. Grade specifications for 321 grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321
321H S32109 321S51 1.4878 X10CrNiTi18-10 SUS 321H
347 S34700 347S31 58G 1.4550 X6CrNiNb18-10 2338 SUS 347
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Corrosion Resistance of ASTM A269 TP 321 / 321H Stainless Steel Pipes and Tubes

equivalent to Grade 304 in the annealed condition and superior if a weldment in these grades has not been post-weld annealed or if the application involves service in the 425-9000C range. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 600C. Considered resistant to potable water with up to about 200mg/L chlorides at ambient temperatures, reducing to about 150mg/L at 600C.

. Heat Treatment of 321 Stainless Steel Pipes and Tubes

Solution Treatment (Annealing) – heat to 950-11200C and cool rapidly for maximum corrosion resistance.

Stabilising – heat to 870-9000C for 1 hour per 25mm of thickness and air cool. Stabilisation is recommended for most severe service conditions (above 4250C) and particularly for material annealed at the upper side of the annealing temperature range.

Stress Relief – Heat to 7000C for 1 to 2 hours and air cool. These grades cannot be hardened by thermal treatment.

ASTM A269 TP 321 / 321H Stainless Steel Pipe and Tube Packing

ASTM A269 TP 321 / 321H 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. SS 321 ASTM A269 Seamless Pipe packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.

Delivery: Within 10-25 days or asap if we have enough stock

Types of Packaging:

  • – Bundles (hexagonal)
  • – Wooden Boxes
  • – Crates (steel/wooden)
  • – Special crates for U-Bend tubes with each radius separated
  • – Packaging for SS 321 ASTM A269 Seamless Pipe as per customer’s requirements

Special Features:

  • – Each bundle covered with plastic for protection against extreme weather.
  • – End of SS 321 ASTM A269 Seamless Pipe protected by plastic caps.
  • – Bundles strapped with plastic strips.
  • – Each radius of U-Bend tube separated by a separator.
  • – Packaging list (laminated) placed with box/crate.

ASTM A269 TP 321 / 321H Stainless Steel Pipes, Tube Stock and Supply Range

Sr. No. Product Description Outside Diamter, OD (in mm) Wall Thickness, WT (in mm)
1 321/321H Stainless Steel Round Pipe/Tube 6mm – 630mm 0.5mm-30mm
2 321/321H Stainless Steel Square Pipe/Tube 12.7mm* 12.7mm to 300mm* 300mm 0.5mm-30mm
3 321/321H Stainless Steel Rectangular Pipe/Tube  10*20mm to 100*200mm 0.5mm-30mm
4 321/321H Stainless Steel Colour Coated Pipe/Tube 6mm to 630mm 0.5mm-30mm
5 321/321H Stainless Steel Ornamental Tubes 12.7mm to 76.2mm 0.5mm-2.0mm
6 321/321H Stainless Steel Electropolished Pipes/Tubes 12.7mm to 250mm 0.5mm-30mm
7 321/321H Stainless Steel Slot Round Pipe/Tube 12.7mm to 76.2mm 0.5mm-2.0mm
8 321/321H Stainless Steel Triangle Tube 16mm to 85mm 0.5mm-3.0mm
9 321/321H Stainless Steel Hexagonal Tube 13mm to 85mm 0.5mm-2.0mm
10 321/321H Stainless Steel Handrail Tube 0.5mm-2.0mm
11 321/321H Stainless Steel U Shaped Tube 20mm to 200mm 0.5mm-2.0mm
12 321/321H Thin-Wall Stainless Steel Tube  22mm*0.7mm to 108mm*2.0mm 0.5mm-2.0mm
13 321/321H Inner/Outside Polished Stainless Steel Tube, Pipes 12.5mm to 203.2mm 1.0mm – 5mm
14 321/321H Stainless Steel Capillary Tube 0.28mm to 10mm 0.08mm – 1.2mm
15 321/321H Stainless Steel Seamless Tube 6mm to 430mm 0.8mm – 30mm

ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipe Sizes Available in Stock with Price

  • 1/2″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 3/4″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 1″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 1-1/4″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 1-1/2″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 2″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 2-1/2″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 3″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 3-1/2″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 4″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 5″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 6″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 8″ NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 10″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 12″ NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 14″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 16″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 18″ NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS

ASTM A269 TP 321 / 321H Stainless Steel Seamless Tube Sizes in Thickness SWG/BWG Available in Stock with Price

  • 1/4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 5/16″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 3/8″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 1/2″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 3/4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 1″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 1-1/4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 1-1/2″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 1-3/4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 2″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 2-1/4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 2-1/2″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 2-3/4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 3″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 3-1/2″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 4″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 4-1/2″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge
  • 5″ OD in Thickness 10 Gauge, 12 Gauge, 14 Gauge, 16 Gauge, 18 Gauge, 20 Gauge, 22 Gauge

We export ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipe and Tube to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc.

HSH is a well known worldwide exporter of ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes and Tubes, HSH is committed to provide each and every customer with the highest standard of customer service. We deals in in India & Overseas, offering a wide range of ASTM A269 TP 321 / 321H Stainless Steel Seamless Pipes and Tubes.

HSH stocks a broad range of metal materials, including aluminum, steel, stainless steel, copper and brass, and specialty metals. Also, we also sell cast fittings, cast Iron, forged fittings, cutting tools, flanges, ect. If you have any needs about our products, you can contact us.
sales@https://www.metal-pipe.com

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