Inside Banner

ASTM A213 321/321H Stainless Steel ERW Pipes

High quality Stainless Steel ERW Pipes is all made and controlled to the relevant standards such as: ASME, ASTM, BS and DIN/WERKSTOFFE. KOBSINDIA offer ASTM A213 321/321H Stainless Steel EFW Pipes high quality, favorable price! ASTM A213 321/321H Stainless Steel EFW Pipes in large & small min mill quantities.

Stainless Steel ERW Pipes of premium quality is supplied by KOBSINDIA, per ASTM A 213, ASTM A 269 and ASTM A 511. Not only we stock standard sizes and grades of Seamless tubes  in Stainless Steel SS304 & SS316, but we also do maintain huge inventories of Alloy Steel based pipes in  304H, 309/S, 310/S, 317/L, 321H, 347H, Alloy 20, Duplex 2205, Duplex 2507, Alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others. ASTM A213 321/321H Stainless Steel EFW Pipes, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.

KOBSINDIA has pride in providing a whole range of high-class, customizable and innovative ASTM A213 321/321H Stainless Steel ERW Pipes using state-of-art technology. Our range includes ASTM A213 321/321H Stainless Steel ERW Pipes, Stainless Steel Seamless pipes & Tubes, Carbon Steel Seamless Pipes & Tubes and Alloy Steel Seamless Pipes & Tubes. For more than five decades, KOBSINDIA has been serving the needs of the oil and gas industries, automotive, shipbuilding, power plants. All the supply records for most of the severe environment of ASME SA312 321/321H Stainless Steel EFW Pipes & pipe line indicate that KOBSINDIA is the leader in line pipe technologies.

We have been supplying high quality ASTM A213 321/321H Stainless Steel ERW Pipes with most advance technology and with most reliable quality. We place importance not just on managing material sales, but also on 'before' and 'after service'.

Applications

  • Oil Industry
  • Gas Industry
  • Refrigeration Industry
  • Filtration Industry
  • Petrochemical Industry
  • Offshore Industry

Specifications

Outer Diameter (OD) of Welded Pipe 1/8" to 36"
Grades in Stainless Steel 300 Series of Welded Pipes 304, 304L, 304H, 309S, 309H,310S,310S,316L,317L,321,321H,347, 347H
Grades in Stainless Steel 400 Series of Welded Pipes 410, 410S
Alloy Steel Grades of Welded Pipes Alloy 20, 200, 400,600,601,625,825H,825HT,C276, Duplex 2205, Duplex 2507

Chemical Composition

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

Physical Properties

Grade

Density (kg/m3)

Elastic Modulus (GPa)

Mean Coefficient of Thermal Expansion (μm/m/°C)

Thermal Conductivity (W/m.K)

Specific Heat 0-100°C (J/kg.K)

Electrical Resistivity (nΩ.m)

0-100°C

0-315°C

0-538°C

at 100°C

at 500°C

321

8027

193

16.6

17.2

18.6

16.1

22.2

500

720

Mechanical Properties

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.

Grade Specification Comparison

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.

KOBSINDIA exports Stainless Steel ERW Pipes to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

Our Products