ASTM A213 Seamless Ferritic & Austenitic steel Specification, Boiler & Superheater Tubes & Austenitic steel Heat Exchange Tubes Specification, ASTM A269 Seamless & Welded austenitic steel tubing for general service

ASTM A270 Seamless & Welded austenitic steel for Sanitary Tubing Specification, ASTM A312 Seamless Specification, Welded & Heavily Cold worked Austenitic SS Pipes Specification, ASME SA789 Seamless & Welded Duplex & Super Duplex Steel Specification

Stainless Steel / A270 seamless welded tubing Specification/ Specification a249 Welded austenitic steel boiler, Super Heater, Heat Exchanger and Condenser Tubes/ A312 Seamless Pipe Specification / A269 Seamless Pipe Specification / A268 Pipe Seamless and Welded ferritic/ A358 Welded Big Diameter Specification

Highlight of ASTM Specification Stainless Steel pipes, Tubes


PIPE SELECTION GUIDE AS PER ANSI 836.19 STANDARD

Nominal Bore Pipe SIze In Schedule 5S Schedule 10S Schedule 40S Schedule 80S
N.B
in inch.
N.B 
in mm
mm Wall Thickness in mm Weight kg/mtr. Wall Thickness in mm Weight kg/mtr. Wall Thidmess in mm Weight kg/mtr. Wall Thickness in mm Weight kg/mtr.
1/4" 8 13.72 1.24 0.380 1.65 0.499 2.24 0.644 3.02 0.809
3/8" 10 17.15 1.40 0.544 1.65 0.640 2.31 0.858 3.20 1.118
1/2" 15 21.30 1.65 0.815 2.11 1.016 2.77 1.288 3.73 1.645
3/4" 20 26.70 1.65 1.034 2.11 1.298 2.87 1.710 3.91 2.228
1" 25 33.40 1.65 1.312 2.77 2.125 3.38 2.541 4.55 3.287
11/4" 32 42.20 1.65 1.674 2.77 2.732 3.56 3.441 4.85 4.531
11/2" 40 48.30 1.65 1.926 2.77 3.155 3.68 4.108 5.08 5.493
2" 50 60.30 1.65 2.424 2.77 3.992 3.91 5.524 5.54 7.601
2 1/2" 65 73.00 2.11 3.747 3.05 5.345 5.16 8.769 7.01 11.589
3" 80 88.90 2.11 4.585 3.05 6.557 5.49 11.466 7.62 15.509
3 1/2" 90 101.60 2.11 5.260 3.05 7.526 5.74 13.778 8.08 18.921
4" 100 114.30 2.11 5.930 3.05 8.496 6.02 16.322 8.56 22.685
5" 125 141.30 2.77 9.610 3.40 11.740 6.55 22.101 9.52 31.444
6" 150 168.30 2.77 11.480 3.40 14.037 7.11 28.694 10.97 43.211
8" 200 219.08 2.77 15.000 3.76 20.290 8.18 43.230 12.70 65.670
10" 250 273.50 3.40 22.950 4.19 28.200 9.27 61.220 12.70 82.780
12" 300 232.90 3.96 31.710 4.57 36.530 9.53 74.990 12.70 98.920

TABLE OF GAUGES

Guage No 8 10 12 14 16 18 19 20 22

S.W.G (Standard Wire Guage)

Inch 0.160 0.128 0.104 0.080 0.064 0.048 0.040 0.036 0.028
mm 4.064 3.251 2.642 2.032 1.626 1.219 1.016 0.914 0.711

B.W.G (Birmingham Wire Guage)

Inch 0.165 0.134 0.109 0.083 0.065 0.049 0.042 0.035 0.028
mm 4.191 3.404 2.769 2.108 1.651 1.245 1.067 0.889 0.711

HYDROSTATIC TEST

The Test Pressure shall be determined by the following equation S= allowable fiber stress (60 percent of the specified minimum yield strength for carbon and ferritic alloy steel and 50 percent of the specified minimum Yield strength for austentic alloy steel) in psi. 
p = 2 St
          D
t=specified wall thickness in inches/mm 
where P= Hydrostatic Test pressure in psi D= specified or calculated outside diameter in lnches/mm
  The maximum hydrostatic test pressure shall not exceed 2,500 psi for nominal sizes 3 inches & under or 2,800 psi for nominal sizes over 3 inches.
HIGHLIGHTS OF ASTM SPECIFICATIONS FOR STAINLESS STEEL TUBES AND PIPES

Specifications

Allowable Outside Diameter Variations 
in mm

Allowable Wall 
Variations in %

Exact length Tolerances in mm

Testing

ASTM A-213 
Seamless Ferritic & 
Austenitic steel,
Boiler & Superheater Tubes & Austenitic
steel Heat
Exchange Tubes

Diameter
Over
Under
Over
Under
Over
Under
• Tension Test
• Flattening Test
• Flare Test 
• Hardness Test 
• 100% Hydrostaticor Eddycurrent or Ultrasonic Test
Under 25.4
25.4-38.1 incl.
38.1-50.8 excl. 
50.8-63.5 encl. 
63.5-76.2 excl. 
76.2-101.6 incl.
0.1016
0.1524
0.2032 
0.2540
0.3048 
0.3810
0.1016
0.1524
0.2032 
0.2540 
0.3048
0.3810
20 
20
22
22
22
22
0
0
0
0
0
0
3.175
3.175 
3.175 
3.760 
4.760 
4.760
0
0
0
0
0
0

ASTM A-269 
Seamless & Welded 
austenitic steel
tubing for general service

Under 12.7 
12.7-38.1 excl.
38.1-88.9 excl. 
88.9-139.7 excl.
139.7 203.2 excl.
0.13
0.13
0.25
0.38
0.76
0.13
0.20
0.25
0.28
0.38
15
10
10
10
10
15 
10
10
10
10
3.2
3.2
4.8
4.8
4.8

0
0
0
0
• Flare Test (Seamless only) 
• Hardness Test 
• 100% Hydrostatic or Eddycurrent or Ultrasonic Test

ASTM A-270
Seamless & Welded 
austenitic steel for 
Sanitary Tubing

Under 25.4 
25.4 to 50.8 excl.
50.8 to 76.2 excl. 
76.2 to 101.6 excl.
0.13
0.20
0.25
0.38
0.13 
0.20
0.25
0.38
12.5
12.5
12.5
12.5
12.5
12.5
12.5 
12.5
3.2
3.2
3.2 
3.2

0
0
0
• Reverse Flattening Test 
• 100% Hydrostatic or Eddycurrent or Ultrasonic Test
• External polish on all tubes

ASTM A-312 
Seamless, Welded 
& Heavily Cold worked Austenitic SS Pipes

1/8 to 21/2 incl.,
a II t/D ratios
3 to 18 incl.,
t/D up to 5 % incl.
3 to 18 incl.,
t/D> 5 %
0.40
0.80 
1.60
0.80
0.80
0.80
20.0
22.5
15.0
12.5
12.5
12.5
6.35 
6.35
6.35
0
0
0
• Tension Test
• Flattening Test
• 100% Hydrostatic or Eddycurrent or Ultrasonic Test

ASME SA 789 
Seamless & Welded 
Duplex & Super
Duplex Steel

Up to 1/2 (12.7)
Excl 1/2 to 1 1/2
(12.7 to 38.1) excl
1 1/2 to 3 1/2
(38.1 to 88.9) excl
0.005

0.005
0.005
0.13

0.13
0.25
15.0

15.0
15.0 
15.0

15.0 
15.0 
3.175

3.175
4.763
0

0
0
• Tension Test
• Flare Test
• Hardness Test
• 100% Hydrostatic or Eddycurrent or Ultrasonic Test
Equivalent EN Specifications

EN 10216 - 5

Seamless Stainless Steel Tubes for Pressure Purpose

EN 10297 - 2

Seamless Stainless Steel for Mechanical & general Engineering Purpose

EN 10246 - 2

Non- Destructive Testing of Steel Tubes

EN ISO 1127

Dimensions & Tolerances of Stainless Steel Tubes

Special Formula


  • Weight of Stainless Steel Pipes & Tubes
    OD(mm)-W.T. (mm) x W.T.(mm)x0.02466=Kg.per Mtr.

  • Sheet Width Required for rolled and welded pipes
    O.D.(mm) - THK(mm) x 3.14=SheetWidth

  • Weight of Carbon Steel Pipes & Tubes
    Dia.(mm)-W.T.(mm) XW.T.(mm) x 0.02466=Kg.PerMtr.

  • Weight of Copper Pipes
    OD(mm)-W.T. (mm) X W.T.(mm) x 0.0256=Kg.per Mtr.

  • Weight of Lead Pipes(appro.)
    OD(mm)-W.T. (mm) XW.T.(mm) x 0.0345=per Mtr.

  • Weight of Alluminium Pipes(appro.)
    OD(mm)-W.T. (mm) XW.T.(mm) x 0.0082=Kg per Mtr.

Techinical Specification

Welded Pipe Specification

Boiler Pipe Specification

ASTM A213 Seamless Ferritic & Austenitic steel Specification, Boiler & Superheater Tubes & Austenitic steel Heat Exchange Tubes Specification, ASTM A269 Seamless & Welded austenitic steel tubing for general service

ASTM A270 Seamless & Welded austenitic steel for Sanitary Tubing Specification, ASTM A312 Seamless Specification, Welded & Heavily Cold worked Austenitic SS Pipes Specification, ASME SA789 Seamless & Welded Duplex & Super Duplex Steel Specification
Stainless Steel Schedule 5S, SS Schedule 10S, Schedule 40S, Schedule 80S || ASTM Specification pipe / Tube / A270 seamless welded tubing Specification/ Specification a249 Welded austenitic steel boiler, Super Heater, Heat Exchanger and Condenser Tubes/ A312 Specification / A269 Specification / A268 Pipe Seamless and Welded ferritic/ A358 Welded Big Diameter Specification