ASTM A312 TP321 Stainless Steel Pipe

SS 321 Seamless Pipe & ASME SA 312 TP 321 Welded Pipe manufacturer in India

Also referred to as by its trade name UNS S32100, stainless steel grade ASTM A312 Tp321 is a titanium stabilized alloy. The SS 321 Welded Pipe produced under specification ASTM A312 has been designed to resist intergranular corrosion, especially in high temperature settings. At a temperature between 800 to 1500°F, the more conventionally used austenitic stainless steel grades are susceptible to chromium carbide precipitation, unlike the ASTM A312 Gr.Tp321 which has higher creep strength as well as stress rupture properties. In addition, the 321 Stainless Steel Pipe has good toughness properties even at lower temperatures.

Wide stock of AISI 321 ERW Pipe, Check Price and weight of werkstoff nr. 1.4541 321 SS Pipe, Grade 321 UNS S32100 Stainless Steel Pipe

The SS 321 Erw Pipe is one of those alloys which cannot be hardened by heat treatment. However, since the alloy is cold worked, these pipes tend to have a much better surface finish along with superior dimensional control. As the alloy is ductile, the A312 Tp 321 can be easily formed into pipes. Moreover, the SA312 Tp321, like most austenitic stainless steel pipes can be easily welded by the conventionally used welding and fabrication techniques. Tests such as transverse or longitudinal tension test, flattening test in tandem with Grain size determination and weld decay tests are to be performed on the ASTM A312 Tp 321.

SS 321 Pipe Size Chart

ASTM A312 TP321 Seamless Pipes

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

ASTM A312 TP321 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

Specification of ASTM A312 TP321

ASTM / ASME Specification ASTM A312 / ASTM SA312
Dimensional Standards ANSI/ASME B36.19M, ANSI/ASME B36.10M
Different Types and Shapes Hydraulic, Square, Hex, Honed, Round, Rectangle
Most Common types 100% X Ray Welded, Seamless, CDW, Fabricated, ERW, Welded
Pipe End Types Plain One End, Plain Both Ends, Bevel small end, Treaded On End, Beveled end, Bevel one end, Bevel large end, Beveled One End, Treaded Both Ends, Bevel both ends
Technical Conditions of The Pipe Cold Drawn, Bright Annealed, Annealed and Pickled, Polished
Mechanical Surface Finishing 2B, No.4, No.1, No.8 Mirror Finish or custom Finish as per customer Requirements
Wall Wall Thickness Schedule Chart
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Other Services we provide
  • Draw & Expansion as per client's required Size & Length
  • Polish (Electro & Commercial) Heat Treatment
  • Annealed & Pickled
  • Bending
  • Sand Blasting
  • Machining Etc.
Marking available for TP321 Pipes
  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 TP321 12" NB SCH 40S SEAMLESS HEAT NO. XXXX

Type of 321 Stainless Steel Pipe

SS 321 Seamless Pipe

SS 321 Seamless Pipe

Stainless Steel 321 Welded Pipe

Stainless Steel 321 Welded Pipe

SS 321 ERW Pipe

SS 321 ERW Pipe

A312 TP321 EFW Pipe

A312 TP321 EFW Pipe

321 Stainless Steel Pipe Price

FOB Price: US $1.00-$4.50/Kg

Types of heat treatment methods for 321 stainless steel pipe

The grade 321 stainless steel is austenitic steel that is stabilized with titanium. The titanium stabilization provides the material with good corrosion resistance. The titanium also limits the usage as welding consumable because titanium does not transfer well over an electric arc welding procedure. So working with heat has limitations on this product.

However, annealing is available as a means of treating this material for extra corrosion resistance. Annealing is performed by heating up the material up to 1065 degrees Celsius and then water quenching it. This provides maximum corrosion resistance to the products made up this material. In addition to the annealing procedure, the hot bending operation could be performed in the range of 950 -1100 degrees Celsius.

This is not actually a heat treatment to increase any mechanical properties but soon after the hot bending, annealing is performed to make sure that the corrosion resistance properties are restored. The annealing also provides the material with less intergranular corrosion during welding. An oxide layer forms on the surface of the pipes after annealing which acts as a coating against oxidation reactions. Some types of finishing are also available to protect the surface in addition to the heat treatment.

ASTM A312 TP321 Material in stock

SA 312 TP 321 3 Inch Pipe Stainless Steel UNS S32100 Dairy Pipe
A312 GR TP321 Square Pipe Price SS UNS S32100 TP321 Erw Pipe
A312 TP 321 Seamless Pipe Austenitic SS TP321 Polished Pipe
TP 321 Stainless Steel Hollow Pipe ASTM A 312 TP 321 Stainless Steel Schedule 80 Pipe
ASTM A312 SS 321 Rectangular Pipe ASTM A312 GR TP321 Schedule 10 Pipe
Austenitic Stainless Steel 321 Round Pipe A312 Stainless Steel 321 Electropolished Pipe
ASTM A312 TP321 Exhaust Pipe SS UNS S32100 Box Pipe
A312 TP321 Schedule 40 Pipe TP 321 Stainless Steel DIN 1.4541 Water Pipe
werkstoff nr. 1.4541 Stainless Steel 321 C Class Pipe SA312 321 Stainless Steel Threaded Pipe

Mechanical Specification of AISI 321 Pipe

Density 8.0 g/cm3
Melting Point 1454 °C (2650 °F)
Tensile Strength Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset) Psi – 30000 , MPa – 205
Elongation 35 %

TP321 Stainless Steel Composition Chart

Ni 9 – 12
Cr 17 – 19
C 0.08 max
N 0.10 max
Fe Balance
Mn 2 max
Si 0.75 max
S 0.03 max
P 0.045 max
Ti 5xC min
0.60% max

ASTM A312 TP321 Equivalent material grade

MATERIAL UNS WERKSTOFF NR.
  USA GERMAN
TP321 S32100 1.4541