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SS Pipe Size Chart – Stainless Steel Pipe Dimensions & Schedule Chart

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Stainless Steel Pipe Size Chart

The Stainless Steel Pipe Size Chart by CeraPure Steel provides complete information about SS pipe dimensions, outside diameter, wall thickness, schedules, nominal bore sizes, and pipe weights. Stainless steel pipes are widely used in industries such as oil & gas, dairy, pharmaceutical, food processing, petrochemical, construction, and industrial fabrication.

SS pipes are manufactured in multiple schedules including SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, and XXS to meet different pressure and temperature requirements.

SS Pipe Specifications

Specification

Details

Material

Stainless Steel

Pipe Type

Seamless / Welded / ERW

Pipe Size

1/8” NB to 36” NB

Thickness Range

0.3 mm to 50 mm

Schedule

SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160

Standards

ASTM A312, A213, A269, A249

Length

Single Random / Double Random / Cut Length

Surface Finish

Annealed, Pickled, Polished, Bright Annealed

Forms

Round, Square, Rectangular, Hydraulic

What is SS Pipe Size Chart?

An SS Pipe Size Chart is a dimensional reference table that shows:

  • Nominal Pipe Size (NPS)
  • Outside Diameter (OD)
  • Wall Thickness
  • Pipe Schedule
  • Pipe Weight
  • Pressure Capacity

These charts help engineers, fabricators, piping contractors, and industrial buyers select the correct stainless steel pipe dimensions for specific applications.

Stainless Steel Pipe Schedule Formula

Pipe schedule indicates wall thickness and pressure capacity.

Pipe Schedule∝Wall Thickness\text{Pipe Schedule} \propto \text{Wall Thickness}Pipe Schedule∝Wall Thickness

Higher schedule numbers indicate thicker pipe walls and higher pressure handling capability.

SS Pipe Size Chart in MM

Nominal Bore

Inch Size

Outside Diameter (MM)

SCH 5S

SCH 10S

SCH 40S

SCH 80S

15 NB

1/2″

21.3

1.65

2.11

2.77

3.73

20 NB

3/4″

26.7

1.65

2.11

2.87

3.91

25 NB

1″

33.4

1.65

2.77

3.38

4.55

32 NB

1 1/4″

42.2

1.65

2.77

3.56

4.85

40 NB

1 1/2″

48.3

1.65

2.77

3.68

5.08

50 NB

2″

60.3

1.65

2.77

3.91

5.54

65 NB

2 1/2″

73.0

2.11

3.05

5.16

7.01

80 NB

3″

88.9

2.11

3.05

5.49

7.62

100 NB

4″

114.3

2.11

3.05

6.02

8.56

150 NB

6″

168.3

2.77

3.40

7.11

10.97

200 NB

8″

219.1

2.77

3.76

8.18

12.70

Stainless Steel Pipe Dimensions Chart

Pipe Size

OD (MM)

OD (Inch)

1/8″

10.3

0.405

1/4″

13.7

0.540

3/8″

17.1

0.675

1/2″

21.3

0.840

3/4″

26.7

1.050

1″

33.4

1.315

1 1/2″

48.3

1.900

2″

60.3

2.375

3″

88.9

3.500

4″

114.3

4.500

6″

168.3

6.625

8″

219.1

8.625

SCH 40 Stainless Steel Pipe Dimensions

Pipe Size

OD (MM)

Wall Thickness

Weight (Kg/Mtr)

1/2″

21.3

2.77 mm

1.27

3/4″

26.7

2.87 mm

1.68

1″

33.4

3.38 mm

2.50

2″

60.3

3.91 mm

5.44

3″

88.9

5.49 mm

11.30

4″

114.3

6.02 mm

16.07

6″

168.3

7.11 mm

28.30

8″

219.1

8.18 mm

42.60

Schedule 80 SS Pipe Dimensions

Pipe Size

OD

SCH 80 Thickness

1/2″

21.3 mm

3.73 mm

3/4″

26.7 mm

3.91 mm

1″

33.4 mm

4.55 mm

2″

60.3 mm

5.54 mm

3″

88.9 mm

7.62 mm

4″

114.3 mm

8.56 mm

6″

168.3 mm

10.97 mm

8″

219.1 mm

12.70 mm

SS Pipe Weight Formula

The stainless steel pipe weight can be calculated using the following formula:

Weight=(OD−WT)×WT×0.024661\text{Weight} = \frac{(OD – WT) \times WT \times 0.02466}{1}Weight=1(OD−WT)×WT×0.02466​

Where:

  • OD = Outside Diameter
  • WT = Wall Thickness

Stainless Steel Pipe Weight Chart

Pipe Size

SCH

Approx Weight (Kg/M)

1/2″

SCH 40

1.27

3/4″

SCH 40

1.68

1″

SCH 40

2.50

2″

SCH 40

5.44

3″

SCH 40

11.30

4″

SCH 40

16.07

6″

SCH 40

28.30

8″

SCH 40

42.60

Types of Stainless Steel Pipes

Seamless Stainless Steel Pipe

Manufactured without welding joints for high-pressure applications.

Welded Stainless Steel Pipe

Produced by rolling and welding stainless steel strips.

ERW Stainless Steel Pipe

Electric Resistance Welded pipes for structural and industrial usage.

Polished SS Pipe

Used in pharmaceutical, food-grade, and decorative applications.

Common Stainless Steel Pipe Grades

Grade

Features

SS 304

Excellent corrosion resistance

SS 304L

Low carbon content

SS 316

Better chemical resistance

SS 316L

Superior weldability

Duplex Steel

High strength and corrosion resistance

Applications of Stainless Steel Pipes

Pharmaceutical Industry

Used in hygienic process piping systems.

Dairy Industry

Suitable for sanitary milk and food processing lines.

Oil & Gas Industry

Used for pressure piping and transportation systems.

Chemical Processing

Resists corrosion from aggressive chemicals.

Construction & Infrastructure

Used in structural and architectural applications.

Water Treatment Plants

Ideal for corrosion-resistant piping systems.

Advantages of SS Pipes

  • Excellent corrosion resistance
  • High temperature strength
  • Long service life
  • Hygienic and easy to clean
  • Smooth internal surface
  • High pressure handling capacity
  • Low maintenance
  • Recyclable material

Stainless Steel Pipe Standards

Standard

Description

ASTM A312

Seamless & welded SS pipes

ASTM A269

Stainless steel tubing

ASTM A213

Boiler & heat exchanger tubes

ASTM A249

Welded heat exchanger tubes

ASME B36.19

Stainless steel pipe dimensions

Countries We Supply Stainless Steel Pipes

CeraPure Steel supplies stainless steel pipes globally including:

  • India
  • UAE
  • Saudi Arabia
  • Qatar
  • Oman
  • Kuwait
  • United States
  • United Kingdom
  • Germany
  • Singapore
  • South Africa
  • Australia

Industries Using SS Pipe Size Charts

  • Petrochemical Plants
  • Pharmaceutical Plants
  • Dairy Processing Units
  • Food & Beverage Industry
  • Fertilizer Plants
  • Shipbuilding Industry
  • Power Plants
  • HVAC Systems
  • Chemical Industries

Conclusion

The SS Pipe Size Chart by CeraPure Steel helps engineers, contractors, and industrial buyers select the correct stainless steel pipe dimensions, schedules, and wall thicknesses for industrial applications. Whether you require SCH 10, SCH 40, or SCH 80 stainless steel pipes, accurate size charts improve system performance, pressure handling, and installation efficiency.

CeraPure Steel provides premium-quality stainless steel pipes, seamless pipes, welded pipes, sanitary tubing, and industrial piping solutions for global industries.

 

FAQs

What is SCH in stainless steel pipes?

SCH refers to pipe schedule, which indicates the wall thickness of the pipe.

What is the OD of a 2-inch SS pipe?

The outside diameter of a 2-inch stainless steel pipe is 60.3 mm.

Which SS pipe schedule is used for high pressure?

SCH 80, SCH 160, and XXS pipes are commonly used for high-pressure applications.

What is the difference between SCH 40 and SCH 80?

SCH 80 pipes have thicker walls and higher pressure capacity compared to SCH 40 pipes.

Which stainless steel grade is best for corrosion resistance?

SS 316 and SS 316L offer better corrosion resistance than SS 304.

Are stainless steel pipes suitable for food industries?

Yes, polished stainless steel pipes are widely used in food, dairy, and pharmaceutical industries because of their hygienic properties.

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