BOILER PIPE
Boiler tubes is a one of seamless pipe. Manufacturing methods is the same as seamless tube, but it has the stringent requirements for manufacture of steel pipes.
| Letter symbol of grade | Elongation % | ||||
|---|---|---|---|---|---|
| C | Si | Mn | P | S | |
| STPG 370 | 0.25 max. | 0.35 max. | 0.30 to 0.90 | 0.040 max. | 0.040 max. |
| STPG 410 | 0.30 max. | 0.35 max. | 0.30 to 1.00 | 0.040 max. | 0.040 max. |
Mechanical Property:
| Letter symbol of grade | Tensile strength | Yield point or proof stress | Elongation % | |||
|---|---|---|---|---|---|---|
| kgf/mm2 {N/mm2} | kgf/mm2 {N/mm2} | No.11 and No.12 test pieces | No. 5 test pieces | No. 4 test piece | ||
| Longitudinal | Transverse | Longitudinal | Transverse | |||
| STPG 370 | 38 {373}min | 22{216} min | 30 min | 25 min | 23 min | 28 min |
| STPG 410 | 42{412}min | 25{245} min | 25 min | 20 min | 19 min | 24 min |
Grade: JIS G3454 STPG 370/JIS G3454 STPG 410
Outer diameter (size): 1/4-36 inches (13.7-914.4 mm)
Wall thickness: 1.0-30 mm
Length: 1-12 meters or as per customer requirements.
Process: hot rolling, cold drawing
Why Choose GNEE
GNEE has 10 hot-rolled seamless steel pipe production lines and 5 cold-drawn seamless steel pipe production lines. It is capable of producing seamless pipes of various specifications and materials. The products are widely used in the fields of petroleum, electric power, chemical industry, coal, machinery, etc.
If you would like to know more about our company or our products, please feel free to contact us.
FAQ
Q.Where are you located? Can I visit you?
A.Sure, you are welcome to visit our factory anytime.
Q.What is your after-sales service?
A.We provide after-sales service and 100% quality assurance for our products.
Q.What is your delivery time?
A.Delivery time is usually about 1 month, if we have stock, we can ship within 7 days.
