Tubo galvanizado por inmersión en caliente
Tubería de acero pre galvanizada
Tubo de acero de aleación transparente
Tubería de acero de aleación soldada
Tubería soldada de acero inoxidable
ASTM A178 is for electric-resistance-welded carbon steel and carbon-manganese steel boiler and superheater tubes
A178 Chemical Properties:
|
Chemical Properties |
Grade A |
Grade C |
Grade D |
|
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 |
0.04 |
0.035 |
0.015 |
|
Si |
- |
- |
0.10 min |
A178 Tensile Requirements:
|
Grade |
Tensile Point (Mpa) |
Yield Point (Mpa) |
Elongation (%) in 2 in. or 50mm |
|
Grade C |
255 |
415 |
30 |
|
Grade D |
75 |
485 |
30 |
