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Stainless Steel 304 ERW Pipe Manufacturer and Supplier in India

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Stainless Steel 304 ERW Pipe

The SS 304 ERW pipe (Stainless Steel 304 ERW Pipe) is manufactured using the 304 strip through a process where circularization and welding of its edges takes place without the use of filler material using Electric Resistance Welding method. They are mostly used in food processing, water, chemical machinery and process piping. ASTM A312 / ASME SA312 covers seamless and straight-seam welded austenitic stainless steel pipe that has been heavily cold worked. Since ASTM A312 does not cover ERW, we are supplying this pipe as ASTM A312 TP304, Welded. Sizes according to ASME B36.19M, NPS and Schedule. Sachin Steel Centre, one of the reliable supplier of Stainless Steel 304 ERW Pipes in India, offers complete traceability of materials to industrial customers in India and abroad.

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Table Of Content

Technical Data

Specifications of Stainless Steel 316 ERW Pipe

Parameter

Product & Standard Detail

Material Grades

TP316 (UNS S31600 / 1.4401), TP316L (UNS S31603 / 1.4404); TP316Ti (1.4571) on request

Pipe Standard

ASTM A312 / ASME SA312 (TP316, TP316L, welded)

Tube Standards

ASTM A249 (Boiler/Heat Exchanger), ASTM A269 (General Tubing), ASTM A270 (Sanitary Tubing)

Structural / Ornamental Standard

ASTM A554 Welded Mechanical Tubing

Dimensional Standard

ASME B36.19M (5S, 10S, 40S, 80S)

Manufacturing Process

Longitudinally Electric Resistance Welded (ERW) from strip without filler metal, solution annealed

Size Range

NPS 1/2 to 12 (DN 15 to DN 300) as charted below; larger sizes available on request

Schedule / Wall Thickness

Sch 5S, Sch 10S, Sch 40S, Sch 80S

Delivery Lengths

Single Random 5 to 7 m, Double Random 10 to 12 m, Cut Lengths

End Finish

Plain End (PE), Bevelled End (BE), Threaded (NPT/BSPT)

Surface Finish

Annealed & Pickled (AP), Bright Annealed (BA), Polished (180/240/320 grit), Electropolished (EP)

Quality Testing

Tension, Flattening, Hydrostatic or Non-Destructive Electrical (Eddy Current / UT), Hardness, Intergranular Corrosion Test (ASTM A262 Practice E on request)

Certifications

Material Test Certificate (MTC) to EN 10204 3.1; Third-party inspection available on request

Pipe Marking

Specification, Grade, Size, Schedule, Process (ERW), Heat Number, Manufacturer Logo

Chemical Composition of Stainless Steel 316 ERW Pipe

Chemical Element

Limit for Grade 316 (TP316 wt%)

Limit for Grade 316L (TP316L wt%)

Carbon (C)

0.08% max

0.035% max

Chromium (Cr)

16.0 to 18.0%

16.0 to 18.0%

Nickel (Ni)

10.0 to 14.0%

10.0 to 15.0%

Molybdenum (Mo)

2.00 to 3.00%

2.00 to 3.00%

Manganese (Mn)

2.00% max

2.00% max

Silicon (Si)

1.00% max

1.00% max

Phosphorus (P)

0.045% max

0.045% max

Sulphur (S)

0.030% max

0.030% max

Iron (Fe)

Balance

Balance

Mechanical & Physical Properties of SS 316 ERW Pipes

Property / Parameter

Grade 316 (TP316)

Grade 316L (TP316L)

Ultimate Tensile Strength (min)

515 MPa (75 ksi)

485 MPa (70 ksi)

0.2% Yield Strength (min)

205 MPa (30 ksi)

170 MPa (25 ksi)

Elongation in 2 in. (min)

35%

35%

Hardness (max)

90 HRB / 192 HBW

90 HRB / 192 HBW

Density

8.0 g/cm³ (0.289 lb/in³)

8.0 g/cm³ (0.289 lb/in³)

Melting Range

1375 to 1400 °C

1375 to 1400 °C

Modulus of Elasticity (E)

193 GPa

193 GPa

Thermal Conductivity (at 100 °C)

16.3 W/m·K

16.3 W/m·K

Mean Thermal Expansion (0 to 100 °C)

15.9 µm/m°C

15.9 µm/m°C

Electrical Resistivity

740 nΩ·m (74 µΩ·cm)

740 nΩ·m (74 µΩ·cm)

Equivalent Grades of Stainless Steel 316 ERW Pipe

Grade

UNS

Werkstoff Nr.

EN Designation

JIS Designation

Old BS

TP316

S31600

1.4401

X5CrNiMo17-12-2

SUS 316

316S31

TP316L

S31603

1.4404

X2CrNiMo17-12-2

SUS 316L

316S11

TP316Ti

S31635

1.4571

X6CrNiMoTi17-12-2

SUS 316Ti

320S31

Dimensions Chart of Stainless Steel 316 ERW Pipe

Nominal Pipe Size (NPS)

Outside Diameter (OD)

Schedule 5S Wall

Schedule 10S Wall

Schedule 40S Wall

Schedule 80S Wall

Weight Sch 5S

Weight Sch 10S

Weight Sch 40S

Weight Sch 80S

½"

21.3 mm

1.65 mm

2.11 mm

2.77 mm

3.73 mm

0.82 kg/m

1.02 kg/m

1.29 kg/m

1.65 kg/m

¾"

26.7 mm

1.65 mm

2.11 mm

2.87 mm

3.91 mm

1.04 kg/m

1.30 kg/m

1.72 kg/m

2.24 kg/m

1"

33.4 mm

1.65 mm

2.77 mm

3.38 mm

4.55 mm

1.32 kg/m

2.13 kg/m

2.55 kg/m

3.30 kg/m

1¼"

42.2 mm

1.65 mm

2.77 mm

3.56 mm

4.85 mm

1.68 kg/m

2.74 kg/m

3.45 kg/m

4.55 kg/m

1½"

48.3 mm

1.65 mm

2.77 mm

3.68 mm

5.08 mm

1.93 kg/m

3.17 kg/m

4.12 kg/m

5.51 kg/m

2"

60.3 mm

1.65 mm

2.77 mm

3.91 mm

5.54 mm

2.43 kg/m

4.01 kg/m

5.54 kg/m

7.62 kg/m

2½"

73.0 mm

2.11 mm

3.05 mm

5.16 mm

7.01 mm

3.75 kg/m

5.36 kg/m

8.80 kg/m

11.62 kg/m

3"

88.9 mm

2.11 mm

3.05 mm

5.49 mm

7.62 mm

4.60 kg/m

6.58 kg/m

11.51 kg/m

15.55 kg/m

4"

114.3 mm

2.11 mm

3.05 mm

6.02 mm

8.56 mm

5.95 kg/m

8.53 kg/m

16.38 kg/m

22.72 kg/m

5"

141.3 mm

2.77 mm

3.40 mm

6.55 mm

9.53 mm

9.64 kg/m

11.78 kg/m

22.18 kg/m

31.47 kg/m

6"

168.3 mm

2.77 mm

3.40 mm

7.11 mm

10.97 mm

11.52 kg/m

14.09 kg/m

28.80 kg/m

43.30 kg/m

8"

219.1 mm

2.77 mm

3.76 mm

8.18 mm

12.70 mm

15.06 kg/m

20.35 kg/m

43.36 kg/m

65.73 kg/m

10"

273.1 mm

3.40 mm

4.19 mm

9.27 mm

12.70 mm

23.04 kg/m

28.31 kg/m

61.46 kg/m

82.93 kg/m

12"

323.9 mm

3.96 mm

4.57 mm

9.53 mm

12.70 mm

31.84 kg/m

36.67 kg/m

75.28 kg/m

99.14 kg/m

SS 316 ERW Stainless Steel Pipe Size and Weight Chart

Nominal Pipe Size (NPS)

Outside Diameter (OD)

Schedule 5S Wall Thickness

Schedule 10S Wall Thickness

Schedule 40S Wall Thickness

Schedule 80S Wall Thickness

Linear Weight Sch 5S

Linear Weight Sch 10S

Linear Weight Sch 40S

Linear Weight Sch 80S

½"

21.3 mm

1.65 mm

2.11 mm

2.77 mm

3.73 mm

0.82 kg/m

1.02 kg/m

1.29 kg/m

1.65 kg/m

¾"

26.7 mm

1.65 mm

2.11 mm

2.87 mm

3.91 mm

1.04 kg/m

1.30 kg/m

1.72 kg/m

2.24 kg/m

1"

33.4 mm

1.65 mm

2.77 mm

3.38 mm

4.55 mm

1.32 kg/m

2.13 kg/m

2.55 kg/m

3.30 kg/m

1¼"

42.2 mm

1.65 mm

2.77 mm

3.56 mm

4.85 mm

1.68 kg/m

2.74 kg/m

3.45 kg/m

4.55 kg/m

1½"

48.3 mm

1.65 mm

2.77 mm

3.68 mm

5.08 mm

1.93 kg/m

3.17 kg/m

4.12 kg/m

5.51 kg/m

2"

60.3 mm

1.65 mm

2.77 mm

3.91 mm

5.54 mm

2.43 kg/m

4.01 kg/m

5.54 kg/m

7.62 kg/m

2½"

73.0 mm

2.11 mm

3.05 mm

5.16 mm

7.01 mm

3.75 kg/m

5.36 kg/m

8.80 kg/m

11.62 kg/m

3"

88.9 mm

2.11 mm

3.05 mm

5.49 mm

7.62 mm

4.60 kg/m

6.58 kg/m

11.51 kg/m

15.55 kg/m

4"

114.3 mm

2.11 mm

3.05 mm

6.02 mm

8.56 mm

5.95 kg/m

8.53 kg/m

16.38 kg/m

22.72 kg/m

6"

168.3 mm

2.77 mm

3.40 mm

7.11 mm

10.97 mm

11.52 kg/m

14.09 kg/m

28.80 kg/m

43.30 kg/m

8"

219.1 mm

2.77 mm

3.76 mm

8.18 mm

12.70 mm

15.06 kg/m

20.35 kg/m

43.36 kg/m

65.73 kg/m

10"

273.1 mm

3.40 mm

4.19 mm

9.27 mm

12.70 mm

23.04 kg/m

28.31 kg/m

61.46 kg/m

82.93 kg/m

12"

323.9 mm

3.96 mm

4.57 mm

9.53 mm

12.70 mm

31.84 kg/m

36.67 kg/m

75.28 kg/m

99.14 kg/m

Applications and Industrial Uses of Stainless Steel 304 ERW Pipe

  • Food, dairy and beverage processing
  • Water and wastewater (low chloride)
  • Building services and HVAC
  • General process lines
  • Machinery and equipment
Application Industries

Frequently Asked Questions

Stainless Steel 304 ERW Pipe is a welded austenitic stainless steel pipe made from grade 304 steel, known for its corrosion resistance, strength and weldability.

SS 304 ERW Pipe is used in food processing, water distribution, chemical equipment, pharmaceutical plants and general industrial piping systems.

SS 304 ERW pipes are manufactured by welding formed stainless steel strips, while seamless pipes are produced without a welded seam.

ASTM A312 covers welded, seamless and heavily cold-worked austenitic stainless steel pipes, including TP304 grade.

Yes, SS 304 ERW Pipe offers good corrosion resistance in many environments due to its chromium content, but it may be vulnerable to chloride-induced pitting.

SS 304L has a lower carbon content than SS 304, helping reduce the risk of sensitization and intergranular corrosion after welding.

Yes, SS 304 ERW Pipe is commonly used in food processing equipment and piping systems when its surface finish, cleanliness and service conditions meet the required hygiene standards.

No. A312 covers seamless and straight seam welded pipe and does not name the welding process. We supply SS 304 ERW pipe as ASTM A312 TP304, welded. ASTM A358 covers fusion welded pipe made with filler metal.

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