ASTM A178 standard covers minimum wall thickness steel pipe made of carbon steel and carbon manganese steel for use in boiler tubes, boiler flues, superheater flues, and safety ends.
The chemical composition content range of ASTM A178 steel pipe is: C: 0.06--0.18%, Mn: 0.27--0.63%, Pmax: 0.035, Smax: 0.0351.
GNEE manufactures ASTM A178 seamless steel pipe in sizes and thicknesses typically ranging from 1⁄2 to 5 inches (12.7 to 127 mm) outside diameter with minimum wall thicknesses of 0.035 to 0.360 inches (0.9 to 9.1 mm). Its yield strength is 415MPa and its tensile strength is also 415MPa. The strength and toughness of this steel pipe enable it to maintain excellent performance when withstanding high pressure and complex environments.
Chemical Composition of ASTM A178 pipe
|
Element % |
ASTM A178 Gr A / SA178A |
ASTM A178 Gr C / SA178C |
ASTM A178 Gr D / SA178D |
|
Low Carbon Steel |
Medium Carbon Steel |
Manganess Steel |
|
|
C |
0.06-0.18 |
0.35 Max |
0.27 Max |
|
Mn |
0.27-0.63 |
0.80 Max |
1.00-1.50 |
|
P |
0.035 |
0.035 |
0.030 |
|
S |
0.035 |
0.035 |
0.015 |
|
Si |
... |
... |
0.10 Min. |
Outside Diameter and Wall Thickness Tolerance of ASTM A178 Carbon Steel Tubes
|
Outside Diameter Tol |
Wall Thickness Tol |
||
|
OD < 50 |
±0.05mm |
S < 4mm |
±12.5% |
|
OD > 50 |
±1% |
4--20mm |
+15/-12.5% |
|
S≧20mm |
±12.5% |
||
ASME SA178 Welded Steel Boiler Tubes
GNEE's main products are seamless steel pipes, carbon steel pipes, alloy steel pipes, stainless steel pipes, and boiler pipes, with an inventory of 1 million tons. Products are exported to Canada, Spain, Italy, Mexico, Vietnam, Pakistan, Belgium, India, Australia, South Korea, South Africa, Egypt and other countries. The annual sales volume of products is 5 million tons.
GNEE Additional value-added services
UT(Ultrasonic examination)
AR(As Hot Rolled only)
TMCP (Thermal Mechanical Control Processing)
N(Normalized)
Gnee product certificate
Gnee Company Team
Gnee Group participated in the NECC exhibition
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