GB/T 8162 35# Structural seamless pipe
35# structural carbon steel pipe is mainly composed of iron elements and contains a certain amount of carbon, manganese, sulfur and phosphorus and other elements. Among them, the carbon content is about 0.32% to 0.39%, and the manganese content is about 0.5% to 0.8%, which is suitable for manufacturing some structural components with general performance requirements.
The carbon content of 45# structural steel pipe is relatively higher, about 0.42% to 0.50%, and the manganese content is also higher, about 0.5% to 0.8%. This makes the 45# structural carbon steel pipe have higher strength and toughness.
mechanical properties. 35# structural steel pipe has relatively moderate strength and toughness and is suitable for manufacturing some structural elements that do not require high strength, such as pipes in mechanical structures, hydraulic equipment, automobile manufacturing and other fields. The 45# structural pipe has higher strength and toughness due to its higher carbon and manganese content, and is suitable for manufacturing structural components that require higher strength, such as structural components of heavy equipment such as machine tools.
Mechanical Properties Of High-Quality Carbon Steel Structural Steel And Low-Alloy High-Strength Structural Steel Pipes
| Grade | Quality Level | Yield Strength | Lower Yield Strength | Elongation After Breaking | Impact Test | |||
| Nominal Wall Thickness | Temperature | Absorb Energy | ||||||
| <16 Mm | >16 Mm〜 | 〉30 Mm | ||||||
| 30 Mm | ||||||||
| Not Less Than | Not Less Than | |||||||
| 35 | - | >510 | 305 | 295 | 285 | 17 | 一 | - |
| 45 | - | 2590 | 335 | 325 | 315 | 14 | - | - |
GB/T8162 45# Steel pipe Chemical Composition:
|
Grade |
C % |
Si % |
Mn % |
Cr % |
|
45# |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.25 |
|
Standard |
GB/T 8162 |
|
Grade |
10#;20#;35#;45#;Q345A;Q345B;Q345C;Q345D;Q345E |
|
OD |
10.3mm-914.4mm |
|
Wall thickness |
2.1mm-50mm |
|
Surface Treatment |
Varnish, black paintinganti rust oil, hot galvanized, cold galvanized, 3PE,etc |
|
Usage |
Structure Pipe |
|
Package |
Thin oil painting for anti-rust;Two pipe side ends cover with plastic caps. Steel strapping tags per bundle. |
GB/T8162 seamless mild steel pipe
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
Gnee Customer visit
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