ASME SA 312 321H ERW Pipe & SS 321H Seamless Pipe manufacturer in India
ASTM A312 Tp321h is a high carbon version of the titanium stabilized austenitic stainless steel. It has 18% chromium and 8% nickel in the common composition and therefore is called as the 18/8 steel as well. Oshwin Overseas is a manufacturer and supplier of the ASTM A312 Gr.Tp321h pipe types in all kinds, scales and dimensions. There are different production methods such as electric fusion welding, electric resistant welding, cold drawing or hot rolling of the ASTM A312 Tp 321h pipes. The titanium addition in the SA312 Tp321h material composition makes it stronger and more corrosion resistant. It also provides the material last longing life under even corrosive environments. The higher carbon content makes it tougher, but it can compromise the strength compared to the low carbon versions. Due to the increased toughness, it can perform well under cryogenic temperatures as well.
Check sizes and price of SS 321H Welded Pipe, DIN 1.4878 ASTM A312 Gr.TP321H Round Pipe, UNS S32109 321H Stainless Steel Pipe in Mumbai, India
Our A312 Tp 321h products are of superior quality and are tested to the international standards. Our products are used in laboratory equipment, architectural applications in marine environments, food processing industry, and in some chemical processing industries as well. The 321h Stainless Steel Pipe is seamless and has less absolute roughness. The SS 321h Erw Pipe of this type are used for extra strength and ease of welding. However, the SS 321h Welded Pipe has higher carbide precipitation rate than the low carbon material. Regardless of this fact, it is used in applications because of the toughness. You can contact us for further product details and pricing.
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 Chart |
ASTM A312 / ASTM SA312 |
ASME Standard |
ANSI/ASME B36.19M, ANSI/ASME B36.10M |
Shapes and Types |
Round, Square, Hydraulic, Rectangle, Honed |
Most Selling types |
Seamless, Welded, Fabricated, CDW, 100% X Ray Welded, ERW |
Pipe End Bevel |
Treaded 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 TDC |
Annealed and Pickled, Cold Drawn, Polished, Bright Annealed |
Roughness and Surface Finish |
2B, No.4, No.1, No.8 Mirror Finish or custom Finish as per customer Requirements |
Nominal Wall Thickness |
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
We also offer |
Export 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? |
- Specification
- Grade
- Nominal Pipe Sizes
- Pipe Schedule or Wall Thickness
- Manufacturing Method (Seamless / Welded)
- Heat Number
- 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 |
Type of Stainless Steel 321H Pipe

321H Stainless Steel Seamless Pipe
Stainless Steel 321H Welded Pipes

ASTM A312 TP321H ERW Pipe
SS 321H EFW Pipe
ASTM A312 TP 321H Stainless Steel Pipe Price
US $2.10-$6.40 / Kg ex Mumbai, India
Know more about testing requirements for 321h pipe for petrochemical industry
The 321H material has titanium as a stabilizing agent along with nickel, chromium, manganese, silicon and other elements in the composition. The material is meant to be highly corrosion resistant, oxidation resistant and heat resistant. It is used in applications such as aircraft exhaust, welding equipment, chemical processing equipment and in jet engine parts.
To make sure that the components are up to the standards, they have to be tested. The intergranular corrosion tests are done with copper-copper sulfate in 16% sulfuric acid. This is to ensure that the material has less intergranular corrosion after welding as it was intended. The corrosion cracking test, the test for elevated temperature corrosion cracking and tensile and yield strength tests are few of them.
Not all materials require all the tests to be performed. Some are optional for manufacture to do only when the customer specifically asks. Some are mandatory for the manufacturer to issue certificates as per the test. The 321H pipes require the EN10204 3.1,3.2 certificates, so the manufacturer has to perform these tests. Also, when third party tests are needed, those tests are performed as well as approved laboratory tests when required.
Stainless Steel 321H Pipe for sale
A312 Stainless Steel 321H Seamless Pipe |
A312 TP321H Dairy Pipe |
SA312 321H Stainless Steel Schedule 10 Pipe |
SA 312 TP 321H Erw Pipe |
TP 321H Stainless Steel DIN 1.4878 Square Pipe Price |
A312 GR TP321H Polished Pipe |
ASTM A312 SS 321H Hollow Pipe |
A312 TP 321H Exhaust Pipe |
Austenitic Stainless Steel 321H Schedule 80 Pipe |
TP 321H Stainless Steel Schedule 40 Pipe |
SS UNS S32109 Rectangular Pipe |
ASTM A 312 TP 321H Stainless Steel 3 Inch Pipe |
werkstoff nr. 1.4878 Stainless Steel 321H Round Pipe |
ASTM A312 GR TP321H Electropolished Pipe |
Stainless Steel UNS S32109 Box Pipe |
Stainless Steel UNS S32109 Threaded Pipe |
ASTM A312 TP321H C Class Pipe |
ASTM A312 TP321H Water Pipe |
ASTM A312 TP321H Mechanical Properties Table
SS |
TP 321H |
Tensile Strength minimum (MPa) |
515 |
Yield Strength 0.2% Proof minimum (MPa) |
205 |
Elongation minimum (% in 50mm) |
40 |
Hardness |
|
Rockwell B (HR B) maximum |
95 |
Brinell (HB) maximum |
217 |
TP321H Composition Standard
SS |
321H |
Ni |
09 - 12 |
S |
00.03 max |
N |
00.10 |
Cr |
17 – 19 |
Si |
00.75 max |
Mn |
2 max |
C |
00.04 - 0.08 |
P |
00.045 max |
TI |
00.70 max |
SA 312 TP 321H Equivalent Standard
MATERIAL |
UNS |
WERKSTOFF NR. |
|
USA |
GERMAN |
TP321H |
S32109 |
1.4878 |