St44-3G cold rolled coils

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

St44-3G automobile carbon structural steel mechanical and process performances:

Steel grade	Yield strengtha MPa ≥	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 plate 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 products : St52-3G steel , St37-2G steel

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