ASTM A178 is the standard specification covering minimum wall thickness electric resistance welded pipe. SA178 welded pipe is made of carbon steel and carbon manganese steel and is used for boiler tubes, boiler stacks, superheater stacks, and safety ends.
ASTM A178 steel pipe is subject to the electric resistance welding process. After welding, all pipes must be heat treated at a temperature equal to or greater than 1650°F [900°C] and then air cooled or cooled in a controlled atmosphere in a furnace.
ASTM A178 ERW steel pipe is available in three grades: Grade A - Low Carbon Steel, Grade C - Medium Carbon Steel, Grade D - Carbon Manganese Steel.
Products Data
Outside Diameter and Wall Thickness Tolerance of ASTM A178 ERW Steel Pipe:
|
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% |
||
Chemical Composition of ASTM A178 ERW Steel Pipe:
| Element | ASTM A178/ ASME SA-178 | ||
| Grade A | Grade C | Grade D | |
| C | 0.06~0.18 | ≤0.35 | ≤0.27 |
| Mn | 0.27~0.63 | ≤0.80 | 1.00~1.50 |
| P | ≤0.035 | ≤0.035 | ≤0.030 |
| S | ≤0.035 | ≤0.035 | ≤0.015 |
| Si | - | - | ≥0.10 |
Products display
ASTM A178 Round Welded Carbon Steel pipe
Why Choose GNEE
GNEE has 12 production lines with an annual output of 50,000 tons. It has obtained the ISO9001 international quality management system certificate. The current warehouse inventory is more than 1,500 tons and more than 800 specifications.
Our experienced staff is always available to discuss your requirements and ensure full customer satisfaction. Your inquiries are always welcome! sales@gneetube.com
GNEE CUSTOMER VISIT
GNEE FACTORY ENVIRONMENT
GNEE PACKAGING AND SHIPPING
FAQ
Q: Do you have quality control system?
A: Yes, we have our own quality control laboratory.Third party testing servicesare also available.
Q: What services do you provide?
A: Customized service for each customer, please feel free to contact us!
Q.What is your lead time?
A. Regular stock is usually 10 days. Depends on the products.
Hot Tags: astm a178 erw steel tube, China astm a178 erw steel tube manufacturers, suppliers, factory, 316ti 316l polishing stainless steel pipe, No 20 fluid steel pipe, 1 4301Stainless Steel Round Pipe, DIN 17175 15Mo3 Seamless Steel Tubes, 1 4878 SS Hollow Pipe, 20G 27SiMn Alloy Steel Seamless Pipes
