ASTM A312 TP321H Stainless Steel Pipe Manufacturer, Suppliers, and Exporters in India

Mcneil Instrument is a manufacturer supplier, and exporter of the ASTM A312 Gr.Tp321h pipe varieties in various sizes and specifications. The ASTM A312 Tp321h is acknowledged as a high carbon version of the titanium stabilized austenitic stainless steel, featuring 18% chromium and 8% nickel in its standard composition, hence often referred to as 18/8 steel. The production techniques for the Mcneil Instrument SA312 Tp321h pipes encompass electric fusion welding, electric resistant welding, cold drawing, or hot rolling. The titanium inclusion in the SA312 Tp321h material enhances its strength and corrosion resistance, ensuring prolonged durability even in corrosive environments. While the higher carbon content boosts toughness, it may slightly compromise strength compared to low carbon variants. Nevertheless, this heightened toughness enables reliable performance even under cryogenic temperatures.

Want to buy SS 321H Welded Pipe, DIN 1.4878 ASTM A312 Gr.TP321H Round Pipe, and UNS S32109 321H Stainless Steel Pipe in India

Feel free to contact Mcneil Instrument for details on sizes and pricing of SS 321H Welded Pipe, DIN 1.4878 ASTM A312 Gr.TP321H Round Pipe, and UNS S32109 321H Stainless Steel Pipe in India. Their A312 Tp 321h products are renowned for superior quality and compliance with international standards. These products find application in laboratory equipment, marine architectural projects, food processing, and certain chemical industries. The 321h Stainless Steel Pipe, being seamless, exhibits lower absolute roughness, while the SS 321h Erw Pipe provides added strength and welding convenience. Despite a higher carbide precipitation rate in SS 321h Welded Pipe compared to low carbon materials, it maintains toughness, making it suitable for various applications. For further information on products and pricing, reach out to Mcneil Instrument.

Stainless Steel Pipe 321H Pipe Sizes Metric

ASTM A312 TP321H Seamless Pipes

Size: 6NB – 1200NB
OD: 1/8″ – 12″ NPS
Thickness : 0.6 – 12.7 mm
Length: Single, Double Random & Cut Length

ASTM A312 TP321H Erw / Welded Pipes

Size: 1/8” – 36” NB, 1/4” – 36” OD
OD: 6.35 – 114.3 mm
Thickness : 0.8 – 12.7 mm
Length: up to 26 Meters

Standard Specification of ASTM A312 TP321H

Specification ChartASTM A312 / ASTM SA312
Shapes and TypesRound, Square, Hydraulic, Rectangle, Honed
Most Selling typesSeamless, Welded, Fabricated, CDW, 100% X Ray Welded, ERW
Pipe End BevelTreaded On End, Plain One End, Bevel large end, Bevel both ends, Bevel one end, Beveled One End, Plain Both Ends, Beveled end, Bevel small end, Treaded Both Ends
Pipe TDCAnnealed and Pickled, Cold Drawn, Polished, Bright Annealed
Roughness and Surface Finish2B, No.4, No.1, No.8 Mirror Finish or custom Finish as per customer Requirements
Nominal Wall ThicknessSCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
We also offerExport Packaging, Grooving, Polishing, Customer Tagging/ Marking, Machining, Destructive, Export Documentation, Destructive, Non Cutting, Ultrasonic Testing, Material testing, Threading, Color Coding, Threading, Beveling, MTR’s Available
How SS 321H pipe is marked?
  1. Specification
  2. Grade
  3. Nominal Pipe Sizes
  4. Pipe Schedule or Wall Thickness
  5. Manufacturing Method (Seamless / Welded)
  6. Heat Number
  7. Manufacturer’s Name or Custom Logo – on request

Marked Pipe Sample: ANSI B36.19 ASTM A312 TP321H 12″ NB SCH 60S SEAMLESS HEAT NO. XXXX

testing requirements for 321h pipe for the petrochemical industry

Mcneil Instrument specializes in manufacturing 321H material, incorporating titanium as a stabilizing agent alongside nickel, chromium, manganese, silicon, and other elements. This composition ensures high corrosion resistance, oxidation resistance, and heat resistance, making it ideal for various applications such as aircraft exhaust systems, welding equipment, chemical processing apparatus, and jet engine components.

To ensure compliance with rigorous standards, Mcneil Instrument conducts a series of tests on its components. These include intergranular corrosion tests using copper-copper sulfate in 16% sulfuric acid, aimed at minimizing post-weld intergranular corrosion. Additionally, corrosion cracking tests, elevated temperature corrosion cracking tests, and tensile and yield strength tests are performed.

While not all tests are mandatory, Mcneil Instrument provides optional tests upon customer request, ensuring customized quality assurance. However, for 321H pipes, EN10204 3.1 and 3.2 certificates are mandatory, necessitating the completion of these tests. Third-party tests are conducted as needed, and approved laboratory tests are performed when required to ensure the highest standards of quality and reliability.

Stainless Steel 321H Pipe for sale

A312 Stainless Steel 321H Seamless PipeA312 TP321H Dairy Pipe
SA312 321H Stainless Steel Schedule 10 PipeSA 312 TP 321H Erw Pipe
TP 321H Stainless Steel DIN 1.4878 Square Pipe PriceA312 GR TP321H Polished Pipe
ASTM A312 SS 321H Hollow PipeA312 TP 321H Exhaust Pipe
Austenitic Stainless Steel 321H Schedule 80 PipeTP 321H Stainless Steel Schedule 40 Pipe
SS UNS S32109 Rectangular PipeASTM A 312 TP 321H Stainless Steel 3 Inch Pipe
werkstoff nr. 1.4878 Stainless Steel 321H Round PipeASTM A312 GR TP321H Electropolished Pipe
Stainless Steel UNS S32109 Box PipeStainless Steel UNS S32109 Threaded Pipe
ASTM A312 TP321H C Class PipeASTM A312 TP321H Water Pipe

ASTM A312 TP321H Mechanical Properties Table

Tensile Strength minimum (MPa) 515
Yield Strength 0.2% Proof minimum (MPa) 205
Elongation minimum (% in 50mm)40
Rockwell B (HR B) maximum95
Brinell (HB) maximum217

TP321H Composition Standard

Ni09 – 12
S00.03 max
Cr17 – 19
Si00.75 max
Mn2 max
C00.04 – 0.08
P00.045 max
TI00.70 max

SA 312 TP 321H Equivalent Standard