Q345E Seamless Pipe TPCO
Q345E Seamless Pipe
We are manufacturer Seamless Pipe and providing ABS approved Q345E TPCO seamless pipe with diameter 245mm, 325mm, 450mm for ZPMC.
Q345E pipe is a Chinese GB standard low alloy high strength structural steel made with a hot-rolling process. It is also an alternative to the old steel grades of 12MnV, 14MnNb, 18Nb etc, but they still have some differences in chemical composition and strength.
TPCO refers to Tianjin Pipe Corporation, which is a global known seamless pipe manufacturer in China. Zizi is also steel pipe manufacturer in China, we have cooperated with TPCO many times and we can supply top class TPCO pipes with best price.
Q345E Pipe Specification
Brand: TPCO
Type: Seamless
Size: 245mm, 325mm, 450mm
Material: Q345E Pipe
Inspection: ABS
Options for Dimensions
Diameter: 1/2” to 48”
Thickness: Sch 10S, 40, STD, 80, XS, 100, 120, 140, 160, XXS
Length: Single Random, Double Random, Cut Length Q345E Pipe
Type: Semaless & Welded Pipe
End: PE, BE
Q345E Seamless Pipe
Q345E Steel
Meaning & Designation
“Q” is adopted the first letter of Chinese Pinyin, means Yield Point, “345” is the minimum value of yield strength when the steel thickness ≤16mm. The yield point decreases as the thickness increases.
Q345 Seamless Pipe Chemical Composition
| C | Mn | Si | P | S | V |
|---|---|---|---|---|---|
| 0.2 | 1-1.6 | 0.55 | 0.025 | 0.025 | 0.02-0.15 |
Q345 Seamless Pipe Mechanical Properties
| Tensile Strength | Yield Strength | Elongation |
|---|---|---|
| 470-630 | 345 | 22 |
Q345 Grade Steel
5 quality grades: Q345A, Q345B, Q345C, Q345D, Q345E
Advantages of Q345 Seamless Pipe
- Good weldability
- Cold & hot workability
- Good corrosion resistance
- Good performance in structural purpose
Seamless Pipe With ABS Certification
In Factory Inspection
As seamless steel pipe manufacturer, we put a large attention on the quality. Generally speaking, following inspection & tests will be taken for all material seamless steel pipes.
- Appearance & marking Check
- Dimension Measure
- Inspect chemical composition of Q345 Seamless Pipe
- Hydrostatic test
- Bend test
- Flattening test
Third Party Inspection
As a high quality Q345 Seamless Pipe manufacturer, our products can be inspect by third party. The widely known third party inspection agencies are
- BV, SGS, LR, DNV, ABS
ABS Certification
ABS means “American Bureau of Shipping” , it development and implement the design, construction and inspection standards for ships and offshore structures.
The factory of Zizi has finalized the qualification process and obtained a mill approval certificate. This means that we can produce ABS grade high-strength quenched and tempered seamless structural pipes, usually used in jack-ups and seajack vessels.
ABS Certificate