Tel : 0086-021-60880117
Tel : 0086-021-60880117
St44-3G automobile carbon structural steels are featured with good comprehensive mechanical performance (strength and percent elongation, etc.) and process performance (bending ), high dimensional accuracy and excellent welding performance. They are suitable to manufacturing structural members with simple processing and may be used as some structural parts for automobiles, such as car body frames, middle base plates and various reinforcement plates.
St44-3G automobile carbon structural steel size:
Steel grade |
Nominal thickness |
Nominal width |
|
St44-3G |
1.2~2.0 |
700~1250 |
67c9378ecb592dc9ae6b33C2Cd4e46c8 structural steel mechanical and process performances:
Steel grade |
Yield strengtha |
Tensile strength Mpa |
After Breakage Percent Elongation (L0=80mm, b=20mm)%≥ |
180°bending test (b≥20mm) |
|
Bending center diameter |
||||
|
St44-3G |
245 |
430~580 |
18 |
1a |
|
a. taking RP0.2 in case of indistinct yield, otherwise ReL。 |
||||
St44-3G automobile carbon structural steel surface quality:
Grade |
Code No. |
Features |
|
Relatively high-grade finishing surface |
FB(O3) |
It is allowed for the existence of a few surface defects which not affect forming and coating & plating adhesiveness such as minor scratch, impression, pit , roll mark and oxidation tint. |
|
High-grade finishing surface |
FC(O4) |
One side of relatively good quality is free from any remarkable defect visible and the other side must reach FB requirement at least. |
Related link:B170P1,B210P1,B250P1,B180P2,B220P2,B140H1,B180H1,B180H2,B410LA,ST37-2G,ST52-3G,BHG1,BHG2