automobile steel

TRIP Steel is the abbreviation of Transformation Induced Plastics steel. As one of AHSS, the microstructure of TRIP steel is made up of ferrite, bainite and retained austenite. It has solved the contradiction between strength and ductility. It has high strength while it has good plasticity, too. This specific property can meet the formation requirements of automobile parts with complex shape which the good ducticity is needed. BR450/780TR steel mechanical properties Grade Thickness (mm) Yield strength (MPa) Tensile strength (MPa) Elongation A50 (%) BR450/780TR 1.6~6.0 ≥450 ≥780 ≥20 BR450/780TR steel Chemical Composition Grade C Si Mn Nb + Ti BR400/590TR ＜0.3 ＜2.2 ＜2.5 0~0.10 BR450/780TR ＜0.3 ＜2.2 ＜2.5 0~0.10 The strength and formability of BR450/780TR is much more ex

TRIP Steel is the abbreviation of Transformation Induced Plastics steel. As one of AHSS, the microstructure of TRIP steel is made up of ferrite, bainite and retained austenite. It has solved the contradiction between strength and ductility. It has high strength while it has good plasticity, too. This specific property can meet the formation requirements of automobile parts with complex shape which the good ducticity is needed. BR400/590TR steel mechanical properties Grade Thickness (mm) Yield strength (MPa) Tensile strength (MPa) Elongation A50 (%) BR400/590TR 1.6~6.0 ≥400 ≥590 ≥24 BR400/590TR steel Chemical Composition Grade C Si Mn Nb + Ti BR400/590TR ＜0.3 ＜2.2 ＜2.5 0~0.10 The strength and formability of BR400/590TR is much more excellent than normal high strength steel ,Thanks to the combination of hig

CP800 steel is one kind of ultra high strength steel. Its microstructure is mainly made of ferrite and bainite with a small amount of martensite, residual austenite and pearlite. CP800 steel mechanical properties Grade Thickness (mm) Yield strength (MPa) Tensile strength (MPa) Elongation A80 (%) CP800 2.0~10.0 680~830 ≥780 ≥10 CP800 steel Chemical Composition % Grade C Si Mn P S Al Cr + Mo Nb + Ti CP800 ≤0.18 ≤0.80 ≤2.2 ≤0.08 ≤0.015 ≤2.0 ≤1.0 ≤0.15 CP800 steel has the following features : CP steel is one kind of ultra high strength steel. Its microstructure is mainly made of ferrite and bainite with a small amount of martensite, residual austenite and pearlite. The grain size is fine due to the microalloying additions such as Ti , Nb, etc. Apart

BR290/440HE has high strength, good elongation, food formability and flangeability, which can meet the forming requirement of auto parts with complex shapes, such as lower arm, etc. It can also be applied to other parts that need flanging. The flangeability is expressed by the hole expansion ratio. Hole expansion ratio is one of criteria to the formability of steels. It reflects the material’s resistance to local cracking because of large local stretch in the direction perpendicular to the hole during hole expansion. BR290/440HE steel mechanical properties Grade Thickness (mm) Tensile strength (MPa) Yield strength (MPa) Elongation A50 (%) Hole expansion rate (%) BR290/440HE 1.6~6.0 ≥440 ≥290 ≥28 ≥100 BR290/440HE steel Chemical composition % Grade C Si Mn Nb + Ti BR290/440HE ＜0.10 ＜1.50 0.5~2.0 0~0

BR290/440HE has high strength, good elongation, food formability and flangeability, which can meet the forming requirement of auto parts with complex shapes, such as lower arm, etc. It can also be applied to other parts that need flanging. The flangeability is expressed by the hole expansion ratio. Hole expansion ratio is one of criteria to the formability of steels. It reflects the material’s resistance to local cracking because of large local stretch in the direction perpendicular to the hole during hole expansion. BR290/440HE steel mechanical properties Grade Thickness (mm) Tensile strength (MPa) Yield strength (MPa) Elongation A50 (%) Hole expansion rate (%) BR290/440HE 1.6~6.0 ≥440 ≥290 ≥28 ≥100 BR290/440HE steel Chemical composition % Grade C Si Mn Nb + Ti BR290/440HE ＜0.10 ＜1.50 0.5~2.0 0~

 BR340/490HE has high strength, good elongation, food formability and flangeability, which can meet the forming requirement of auto parts with complex shapes, such as lower arm, etc. It can also be applied to other parts that need flanging. The flangeability is expressed by the hole expansion ratio. Hole expansion ratio is one of criteria to the formability of steels. It reflects the material’s resistance to local cracking because of large local stretch in the direction perpendicular to the hole during hole expansion. BR340/490HE steel mechanical properties Grade Thickness (mm) Tensile strength (MPa) Yield strength (MPa) Elongation A50 (%) Hole expansion rate (%) BR340/490HE 1.6~6.0 ≥490 ≥340 ≥24 ≥80 BR340/490HE steel Chemical composition % Grade C Si Mn Nb + Ti BR340/490HE ＜0.10 ＜1.50 0.5~2.0 0~