JIS G3113 SAPH440 chemical & mechanical composition

JIS G3113 SAPH440 chemical & mechanical composition

JIS G3113 is a Japanese material standard. It defines the specifications of hot rolled steel plates, sheets and strips for automotive structures.

SAPH440 steel is a kind of automobile structural steel. It can be used in automotive applications where more strength is required - materials do not fail under overload.

JIS G3113 SAPH440 chemical composition %:

Grade Chemical Composition a (Heat Analysis) (%)
C Si Mn P S Alt
SAPH440 ≤0.21 ≤0.30 ≤1.50 ≤0.025 ≤0.025 ≥0.010

JIS G3113 SAPH440 mechanical composition:

Grade Tensile test (longitudinal) 180°Bend test Inner diameter
Upper yield strength MPa Tensile strength MPa Elongation%
L=50 b=25
Nominal thickness mm Nominal thickness mm
<6 6~<8.0 ≥8.0 1.6~<2.0 2.0~<2.5 2.5~<3.15 3.15~<4.0 4.0~<6.3 ≥6.3 <2.0 ≥2.0
SAPH440 ≥305 ≥295 ≥275 ≥440 ≥29 ≥30 ≥32 ≥33 ≥34 ≥35 2a 3a

The applicable thickness of JIS G3113 SAPH440 steel sheets defined in JIS G3113 varies from 2mm to 14mm. While the width of SAPH440 steel sheets is between 950 and 2000 mm. SAPH440  steel is widely used in the forming performance of automobile parts such as frame and wheel.