ASTM A192 / A192M Standard Specification

The ASTM A192 belongs to the carbon seamless tubes, which is specially designed for high, middle, low pressure purpose in seamless carbon steel boilers and as super heater tubes. This specification has been approved for use by agencies of the Department of Defence.

Consult the DoD Index of Specifications and Standards for a specific year of issue which has been adopted by the Department of Defence.

Mark on the tubes

Packing

Size (mm):

  • O.D.: 6.0-114.0
  • W.T.: 1-15
  • L: max 12000
  • Type: Straight Tube, U-Bend Tube
  • Delivery Condition: As different requirements, It including pickling,etc.

Steel pipe features specifications

O.D.(mm) Wall Thickness Unit(mm)
22.533.544.5566.5-77.5-88.5-99.5-101112
Φ25-Φ28
Φ32
Φ34-Φ36
Φ38
Φ40
Φ42
Φ45
Φ48-Φ60
Φ63.5
Φ68-Φ73
Φ76
Φ80
Φ83
Φ89
Φ95
Φ102
Φ108
Φ114
Φ121
Φ127
Φ133
Φ140
Φ146
Φ152
Φ159
Φ168

ASTM STANDARDA 192 Seamless C-Steel Boiler Tube for High Pressure Service
UNS NO.K01201
KOREA/JAPANESKS/JIS SymbolSTBH 340 / STB 340
KS/JIS NumbeD3563 / G3461
Re marks-30
GERMANDIN TypeSt 35.8
DIN Number17175
Materiral Number1.0305
Re marks
BRITISHB.S Number3059
B.S Grade320
Remarks(27)(30)
BELGIANNBN TypeD45
NBN Grade837
Re marks-27
FRENCHAFNOR TypeTU 37C
NF NumberA49-213
Re marks-27
ITALIANUNI TypeC14
UNI Number5462
Re marks-27

Scope

1. This specification covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service.

2. The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.00 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

3. Mechanical property requirements do not apply to tubing smaller than 1/8 in [3.2 mm] inside dimeter or 0.015 in. [0.4 mm] thickness.

4 When these products are to be used in applications conforming to ISO Recommendations for Boiler Construction, the requirements of specification A 520 shall supplement and supersede the requirements of this specification.

5. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

ASTMA 192M / ASME SA-192M Chemical Compositions(%)

CSiMnPSCrMoCuNiV
0.06-0.18≤0.250.27-0.63≤0.035≤0.035/////

ASTM A 192M / ASME SA-192M Mechanical Properties

Yield Strength (Mpa)Tensile Strength (Mpa)Elongation (%)
≥180≥325≥35

JIS Number and Corrensponding Foreign Standards

JISASTMBSDINNFISOIndex Number
Standard NumberGradeTupeStandard NumberGradeTupeStandard NumberGradeTupeStandard NumberGradeTupeStandard NumberGradeTupeStandard NumberGradeTupe
G3461STB340CA161LCC3059HFS320CA49-245TS34eCC010
(STB35)A192-C"CFS320C"TS34cC
A226-C"ERW320C
A556GrA2C"CEW320C
A557GrA2C"S1 360C
"S2 360C
"ERW 360C
"CEW360C
3606ERW320C
"CEW320C
"CFS320C
STB410CA179GrCC3059S1 440C17175St45.8CA49-213TU42cC2604-02-01 00:00:00TS9HC
(STB42)A210GrA1C"S2 440C17177St42.8CA49-215TU42cC"TW9HC
A556GrB2C"ERW 440CA49-243TS42c
A557GrB2C"CEW 440CA49-245TS42c
3602HFS 410C"TS42c
"CFS 410C
"ERW 410C
"CEW 410C
3606ERW 440C
"CEW 440C
"CFS 440C
STB510CC1717519Mn5CA49-213TU52CC2604-02-01 00:00:00TS18C
(STB52)CA49-248TU52CC

Cold-Finished Seamless Tubes  
Outside DiameterPermissible Variations In. (mm)
In. (mm)Over (+)Under (-)
Under 1 (25.4)0.004 (0.10)0.004 (0.10)
1 to 1 ½ (25.4 to 38.1), Incl0.006 (0.15)0.006 (0.15)
Over 11⁄2 to 2 (38.1 to 50.8), Excl0.008 (0.20)0.008 (0.20)
2 to 21⁄2 (50.8 to 63.5), Excl0.010 (0.25)0.010 (0.25)
21⁄2 to 3 (63.5 to 76.2), Excl0.012 (0.30)0.012 (0.30)

ASTM A192 / ASME SA192 Tube Cut Length Tolerance

 Cold-Finished Seamless Tubes  
Outside Diameter,Cut Length, in.(mm)
In.(mm)Over (+)Under (-)
All Sizes3⁄16 [5]0 [0]
Under 2 (50.8)1⁄8 [3]0 [0]
2 (50.8) and over3⁄16 [5]0 [0]
Under 2 (50.8)1⁄8 [3]0 [0]
2 (50.8) and over3⁄16 [5]0 [0]
These permissible variations in length apply to tubes before bending. They apply to cut lengths up to and including 24 ft [7.3 m]. For lengths greater than 24 ft [7.3 m], the above over-tolerances shall be increased by 1⁄8 in. [3 mm] for each 10 ft [3 m] or fraction thereof over 24 ft or 1⁄2 in. [13 mm], whichever is the lesser.

ASTM A 192M High-pressure Steel Boiler Tube

The ASTM A 192M / ASME SA-192M belongs to the carbon seamless tubes, which is specially designed for high, middle, low pressure purpose in seamless carbon steel boilers and as super heater tubes.

Test:
  • Hydrostatic or Nondestructive Electric Test
  • Heat Treatment: Min temperature 650.
  • Surface Condition: Free of scale, A slight amount of oxidation will not be considered as a scale.
  • Flattening Test, Flaring Test. Flange Test, Hardness Test, Hydrostatic Test

ASTM A192 / ASME SA192 Seamless Tubes – Industries & Applications

Our pipes and tubes are used in a wide range of applications and various industries.

Below are a few of them:

  • Gas Processing Industries
  • Petrochemical Industries
  • Power Generation Industries
  • Food Processing Industries
  • Chemical Industries
  • Oil & Gas Industries
  • Fertilizers Industries
  • Sugar Industries

ASTM A192 steel tube for Boiler Hardness Requirement

Brinell Hardness NumberRockwell Hardness Number
(Tubes 0.200 in. [5.1 mm] and over in wall thickness)(Tubes less than 0.200 in. [5.1 mm] in wall thickness)
137 HB77 HRB

ASTM A192 / ASME SA192 Tube Hydrostatic Test Pressures

Hydrostatic Test Pressures 
Outside Diameter of Tube, in. [mm]Hydrostatic Test Pressure, psi [MPa]
Under 1 [25.4]1000 [7]
1 to 11⁄2 [25.4 to 38.1], excl1500 [10]
11⁄2 to 2 [38.1 to 50.8], excl2000 [14]
2 to 3 [50.8 to 76.2], excl2500 [17]
Each tube shall be subjected to the hydrostatic pressure test, or instead of this test, a nondestructive test may be used when specified by the purchaser.

ASTM A192 / ASME SA192 Flattening Test

One flattening test shall be made on specimens from each end of two tubes selected from each lot or fraction thereof.

ASTM A192 / ASME SA192 Flaring Test

One flaring test shall be made on specie- men from each end of two tubes selected from each lot or fraction thereof. These tubes shall be selected apart from those used for the flattening test.

Inspection and Test:

Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.

Packing

  • Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for a seaworthy delivery or as requested.
  • The Product marking shall include the ASTM A192 or ASME SA192, size, heat no., Lot No. And Manufacture name or logo.

ASTM A192 Tube Pressure Rating

Maximum Allowable Pressure (psi)              
NPSOutside DiameterSchedule
(in)(in)102030STD4060XS80100120140160XXS
1/40.54798579851079810798
3/80.6756606660691479147
1/20.8463586358857585751090817150
3/41.0552735273718771871022014373
11.3154956495666706670931613340
1.251.664133413356385638738011276
1.51.93739373951585158724710316
22.375317731774498449870978995
2.52.875346034604704470463919408
33.5302430244200420061328400
3.542769276938963896
44.52581258136703670476957827339
55.5632273227333033303440455056606
66.6252071207131953195415753186390
88.625142015741829182923072841284133754085461351474971
1010.75114013991664166422792279270832773847455851284558
1212.7596112681441156021601922264432443843432450423843
141487510921313131315332079175026253283382943754921
16167669561148114815312009153125853157373344044882
18186818491192102115302042136125533147374342524848
2020613919122591914551989122525263138367542884824
222255783511148351949111425063063361941764733
2424510766114776614051978102124893126370042104786
30305108171021613817
32324787669575741054
3434450721901540992
36364256818515101021
4242583729438875
Maximum working pressure of ASTM A192 Tube at temperature 400°F, The dimensions - outside pipe diameters and wall thicknesses are according ANSI B36.10.

ASTM A192 Tube Size Chart

ASTM A192 Tube Dimensions, NB Size Schedule
NBSizeOD40S5S10SS10S20S40S60XS/80SS80S100S120S140S160XXS
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
1/8”10.291.21.732.41
1/4”13.721.72.243.02
3/8”17.151.72.313.2
151/2”21.342.81.72.12.773.733.734.787.47
203/4”26.672.91.72.12.873.913.915.567.82
251”33.43.41.72.83.384.554.556.359.09
321 1/4”42.163.61.72.83.564.854.856.359.7
401 1/2”48.263.71.72.83.685.085.087.1410.2
502”60.333.91.72.83.915.545.549.7411.1
652 1/2”73.035.22.13.15.167.017.019.5314
803”88.95.52.13.15.497.627.6211.115.2
903 1/2”101.65.72.13.15.748.088.08
1004”114.362.13.16.028.568.5611.113.517.1
1255”141.36.62.83.46.559.539.5312.715.919.1
1506”168.37.12.83.47.1110.971114.318.322
2008”219.18.22.83.86.48.1810.312.712.715.119.320.62322.2
25010”273.19.33.44.26.49.2712.712.715.119.321.425.428.625.4
30012”323.99.544.66.410.314.312.717.521.425.428.633.325.4
35014”355.69.544.86.47.911.115.112.719.123.827.831.835.7
40016”406.49.54.24.86.47.912.716.712.721.426.23136.540.5
45018”457.29.54.24.86.47.914.319.112.723.829.434.939.745.2
50020”5089.54.85.56.49.515.120.612.726.232.538.144.550
55022”558.89.54.85.56.49.522.212.728.634.941.347.654
60024”609.69.55.56.46.49.517.524.612.73138.94652.459.5
65026”660.49.57.91312.7
70028”711.29.57.91312.7
75030”7629.56.47.97.91312.7
80032”812.89.57.91317.512.7
85034”863.69.57.91317.512.7
90036”914.49.57.91319.112.7

ASTM A192 Tube Weight

ASTM A192 Tube Schedule Chart & ASTM A192 Tube weight
Welded and seamless ASTM A192 Tube
ASTM A192 Tube Dimensions and weights section modulus and gallons capacity per linear foot
NBSizeOD40S5S10SS10S20S40S60XS/80SS80S100S120S140S160XXS
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
1/8”10.291.21.732.41
1/4”13.721.72.243.02
3/8”17.151.72.313.2
151/2”21.342.81.72.12.773.733.734.787.47
203/4”26.672.91.72.12.873.913.915.567.82
251”33.43.41.72.83.384.554.556.359.09
321 1/4”42.163.61.72.83.564.854.856.359.7
401 1/2”48.263.71.72.83.685.085.087.1410.2
502”60.333.91.72.83.915.545.549.7411.1
652 1/2”73.035.22.13.15.167.017.019.5314
803”88.95.52.13.15.497.627.6211.115.2
903 1/2”101.65.72.13.15.748.088.08
1004”114.362.13.16.028.568.5611.113.517.1
1255”141.36.62.83.46.559.539.5312.715.919.1
1506”168.37.12.83.47.1110.971114.318.322
2008”219.18.22.83.86.48.1810.312.712.715.119.320.62322.2
25010”273.19.33.44.26.49.2712.712.715.119.321.425.428.625.4
30012”323.99.544.66.410.314.312.717.521.425.428.633.325.4
35014”355.69.544.86.47.911.115.112.719.123.827.831.835.7
40016”406.49.54.24.86.47.912.716.712.721.426.23136.540.5
45018”457.29.54.24.86.47.914.319.112.723.829.434.939.745.2
50020”5089.54.85.56.49.515.120.612.726.232.538.144.550
55022”558.89.54.85.56.49.522.212.728.634.941.347.654
60024”609.69.55.56.46.49.517.524.612.73138.94652.459.5
65026”660.49.57.91312.7
70028”711.29.57.91312.7
75030”7629.56.47.97.91312.7
80032”812.89.57.91317.512.7
85034”863.69.57.91317.512.7
90036”914.49.57.91319.112.7

Buttweld elbows SA192