ASTM A178 Tube

ASTM A178 tube

ASME SA 178 grade C Boiler Tube Supplier in India


Boiler tubes are used in the construction of boilers, which are then used to heat water or other fluids to generate heat or power. Different boiler tubes are used in different types of boilers depending on their intended use and operating conditions. One popular type of boiler tube is the ASTM A 178 Grade. A and Grade.C Welded Boiler Tubes. ASTM A 178 Grade. A Welded Boiler Tubes are low-carbon steel tubes used for coal-fired boilers, refineries, and related industries. These tubes are ideal for environments with moderate to high temperatures and pressure. They are made using high-quality materials and are available in various sizes and shapes. One of the most significant advantages of using ASTM A 178 Grade. Welded Boiler Tubes can withstand high temperatures without developing cracking, rusting, or oxidation issues.


The ASTM A 178 Grade.C Welded Boiler Tubes are specially designed to resist high-temperature and high-pressure environments like steam boilers, heat exchangers, and superheaters. These tubes are also ideal for various applications, including industrial steam generating and heating systems, power plants, and petrochemical industries. They offer excellent resistance to corrosion and are long-lasting, which makes them more attractive to users.


The ASTM A 178 Grade. A and Grade.C Welded Boiler Tubes have various benefits, including high strength, durability, and resistance to high temperature and pressure environments. These tubes are also easy to weld and are available in different sizes, shapes, and thicknesses, which makes them more versatile and easy to use. Their cost-effectiveness also makes them a popular choice for many industrial applications.


It is crucial to use quality tubes to avoid any failure risks caused by poor or low-quality manufacturing. ASTM International regulates and standardizes the manufacturing of these tubes to ensure they meet specific quality standards. ASTM A 178 Grade. A and Grade.C Welded Boiler Tubes manufacturing standards should meet the ASTM A 450, ASTM A 688, and ASTM A 1016 specifications.


The ASTM A 178 Grade. A and Grade.C Welded Boiler Tubes are an excellent choice for different industrial applications due to their high strength, durability, resistance to high temperature and pressure environments, and cost-effectiveness. These tubes undergo stringent quality tests and standards to ensure they meet the specific manufacturing standards set by ASTM International.


ASTM A178 tube

ASTM A178 Tube

SA 178 grade C tubing

SA 178 grade C Tubing

ASTM A178 grade A tube

ASTM A178 grade A Tube

ASTM A178 tube specification

Sizes Schedule Standard

Outside Diameter:12.7 to 406.4mm
Wall Thickness: 1.5mm-50mm

  • SCH 5 to SCH XXS
ASTM A178 / ASME SA178
Payment terms Type Length
  • L/C
  • T/T
  • Welded / ERW
  • Single Random
  • Double Random
  • Cut length
Cutting techniques Form Heat Treatment
  • Burrless Cuts
  • Tapping
  • Sawing
  • Water-Jet
  • Round
  • Square
  • Rectangular
  • Subcritical anneal
  • Full anneal
  • Normalizing
Value Added Services Packaging Marking on A178 grade C Welded Tube
  • Draw
  • Expansion
  • Galavanizing
  • Shot Blasting
  • Heat Treatment
  • Sand Blasting
  • Machining
  • Loose
  • Plastic Cloth Wraps
  • Bundle
  • Wooden box-a
  • Wooden Pallet
  • Length
  • Grade
  • Thickness
  • Manufacturer/Supplier
  • Heat No.
  • Standard
  • OD name
ASTM A178 tube Ends Production technique Surface
  • Beveled
  • Straight cut
  • Plain
  • Hot finished
  • Cold finished
  • Epoxy Coating
  • PP
  • FBE
  • 3LPE
Material Certification Tolerance Origin
  • EN 10204 Type 3.1/3.2
  • NACE
  • +/-0.1mm
  • Korean
  • US
  • Ukraine
  • Japanese
  • Russian
  • European
  • Indian

Different types of ASTM A178 grade A tube

ASTM A178 grade A Tubing

ASTM A178 grade A Tubing

SA 178 grade A Seamless Tube

SA 178 grade A Seamless Tube

ASME SA 178 grade C Superheater Tubes

ASME SA 178 grade C Superheater Tubes

A178 grade C Welded Tube

A178 grade C Welded Tube

SA 178 gr C ERW Tube

SA 178 grade C ERW Tube

ASTM A178 grade D Tube

ASTM A178 grade D Tube

SA178 grade D CDW Tube

SA178 grade D CDW Tube

ASTM A178 grade A Round Tube

ASTM A178 grade A Round Tube

ASME SA178 High Pressure Tube

ASME SA178 High Pressure Tube

ASTM A178 grade A Tubing are mainly used in manufacturing heating pipelines, ASME SA 178 grade C Superheater Tubes should be heat treated at a temperature of 900℃

SA178 grade D CDW Tube heat treatment

Heat treatment 1650℉ (900℃)

A178 grade C Welded Tube chemical composition

Element Grade A Grade C Grade D
% Low carbon steel Medium Carbon Steel Manganess Steel
S 0.035 0.035 0.015
C 0.06-0.18 0.35 Max 0.27 Max
P 0.035 0.035 0.03
Mn 0.27-0.63 0.80 Max 1.00-1.50
Si - - 0.10 Min.

SA 178 grade C ERW Tube mechanical properties

Grade Grade C Grade D
Yield strength, min, ksi[MPa] 37[255] 40[275]
Elongation in 2in. or 50mm, min, % 30 30

ASTM A178 grade D Superheater Tube tensile requirements

Grade Grade A Grade C Grade D
Tensile Strength:min ksi (Mpa) 47 (325) 60 (415) 70 (485)

Buy quality SA 178 grade A welded tube at factory price from us, View dimensions and sizes of A178 grade C Welded Tube

Dimensions of SA 178 grade C ERW Tube

NPS Inside Diameter Outside diameter Wall Thickness Weight per Foot
1/2 0.622 0.84 0.109 0.85
0.546 0.147 1.09
0.464 0.188 1.31
0.252 0.294 1.72
3/4 0.824 1.05 0.113 1.13
0.742 0.154 1.48
0.612 0.219 1.95
0.434 0.308 2.44
1 1.049 1.315 0.133 1.68
0.957 0.179 2.17
0.815 0.250 2.85
0.599 0.358 3.66
1 1/4 1.380 1.66 0.140 2.27
1.278 0.191 3.00
1.160 0.250 3.77
0.896 0.382 5.22
1 1/2 1.610 1.90 0.145 2.72
1.500 0.200 3.63
1.338 0.281 4.86
1.100 0.400 6.41
2 2.157 2.375 0.109 2.64
2.067 0.154 3.66
1.939 0.218 5.03
1.875 0.250 5.68
1.813 0.281 6.29
1.687 0.344 7.47
1.503 0.436 9.04
2 1/2 2.635 2.875 0.120 3.53
2.469 0.203 5.80
2.443 0.216 6.14
2.375 0.250 7.02
2.323 0.276 7.67
2.125 0.375 10.02
1.771 0.552 13.71
3 3.260 3.50 0.120 4.34
3.188 0.156 5.58
3.156 0.172 6.12
3.124 0.188 6.66
3.068 0.216 7.58
3.000 0.250 8.69
2.938 0.281 9.67
2.900 0.300 10.26
2.624 0.438 14.34
2.300 0.600 18.6
3 1/2 3.760 4.0 0.120 4.98
3.548 0.226 9.12
3.500 0.250 10.02
3.438 0.281 11.17
3.364 0.318 12.52
2..728 0.636 22.87
4 4.260 4.5 0.120 5.62
4.188 0.156 7.24
4.124 0.188 8.67
4.094 0.203 9.32
4.062 0.219 10.02
4.026 0.237 10.80
4.000 0.250 11.36
3.938 0.281 12.67
3.876 0.312 13.97
3.826 0.337 15.00
3.624 0.438 19.02
3.438 0.531 22.53
3.152 0.674 27.57
5 5.187 5.563 0.188 10.80
5.125 0.219 12.51
5.047 0.258 14.63
5.001 0.281 15.87
4.939 0.312 17.51
4.875 0.344 19.19
4.813 0.375 20.80
4.563 0.500 27.06
4.313 0.625 32.99
4.063 0.750 38.59
6 6.407 6.625 0.109 7.59
6.357 0.134 9.30
6.313 0.156 10.79
6.249 0.188 12.94
6.219 0.203 13.94
6.187 0.219 15.00
6.125 0.250 17.04
6.065 0.280 18.99
6.001 0.312 21.06
5.937 0.344 23.10
5.875 0.375 25.05
5.761 0.432 28.60
5.625 0.500 32.74
5.501 0.562 36.43
5.375 0.625 40.09
5.187 0.719 45.39
4.897 0.864 53.21
4.625 1.000 60.13
4.375 1.125 66.14

Outside diameter and wall thickness tolerance of A178 tubing

Outside Diameter tolerance Wall thickness tolerance
OD < 50 ±0.05mm S < 4mm ±12.5%
OD > 50 ±1% 4--20mm -120


S≧20mm ±12.5%
ASTM A178 grade D superheater tube are manufactured using cold drawning method, View latest SA 178 grade C ERW Tube price list ex Mumbai

SA178 tube price list

Price list of ASTM A178 tube SA178 tube Price in USD A178 tubing Price in UAE Dirham
ASTM A178 TUBE - 2-1/2" OD X .105" M/W US $2.4 per kg 8.82 UAE Dirham per kg

Available testing of ASTM A178 grade A Round Tube

  • Flattening Test
  • Flange Test
  • Crush Test
  • Tension Test
  • Reverse Flattening Test
  • Hydrostatic Test
  • Nondestructive Electric Test
ASTM A178 grade A round tube are available in thickness ranging from 0.35mm to 6.35mm OD, We are exporter of ASME SA178 high pressure tube wordlwide

A178 grade C Welded Tube Schedule chart

O.D. Inches NPS 10 40 80 160 Std
.405 1/8" .049 .068 .095 .068
.540 1/4" .065 .088 .119 .088
.675 3/8" .065 .091 .126 .091
.840 1/2" .083 .109 .147 .187 .109
1.050 3/4" .083 .113 .154 .218 .113
1.315 1" .109 .133 .179 .250 .133
1.660 1 1/4" .109 .140 .191 .250 .140
1.900 1 1/2" .109 .145 .200 .281 .145
2.375 2" .109 .154 .218 .343 .154
2.875 2 1/2" .120 .203 .276 .375 .203
3.500 3" .120 .216 .300 .437 .216
4.000 3 1/2" .120 .226 .318 .226
4.500 4" .120 .237 .337 .531 .237
5.000 4 1/2" .247
5.563 5" .134 .258 .375 .625 .258
6.625 6" .134 .280 .432 .718 .280
7.625 7" .301
8.625 8" .148 .322 .500 .906 .322
9.625 9" .342
10.750 10" .165 .365 .593 1.125 .365
11.750 11" .375
12.750 12" .180 .406 .687 1.312 .375
14.000 14" .250 .437 .750 1.406 .375
16.000 16" .250 .500 .843 1.593 .375
18.000 18" .250 .562 .937 1.781 .375