Hengqiao (Shanghai) International Trading Co., Ltd.
Dual phase steels consist mainly of ferrite and martensite, and bainite can be present with increasing strength.
Dual phase steels have a low yield ratio (R/Rm) and a high work hardening capacity, making them particularly suitable for high stretching operations.
Grade | Chemical composition | |||||||
C% | Si% | Mn% | P% | S% | Al% | |||
VDA 239-100 CR290Y490T-DP | ≤0.14 | ≤0.50 | ≤1.80 | ≤0.050 | ≤0.010 | 0.015-1.0 | ||
VDA 239-100 CR330Y590T-DP | ≤0.15 | ≤0.80 | ≤2.50 | ≤0.050 | ≤0.010 | 0.015-1.5 | ||
VDA 239-100 CR440Y780T-DP | ≤0.18 | ≤0.80 | ≤2.50 | ≤0.050 | ≤0.010 | 0.015-1.0 | ||
VDA 239-100 CR590Y980T-DP | ≤0.20 | ≤1.00 | ≤2.90 | ≤0.050 | ≤0.010 | 0.015-1.0 | ||
VDA 239-100 CR700Y980T-DP | ≤0.23 | ≤1.00 | ≤2.90 | ≤0.050 | ≤0.010 | 0.015-1.0 | ||
Grade | Chemical composition | |||||
Ti%+Nb% | Cr%+Mo% | B% | Cu% | |||
VDA 239-100 CR290Y490T-DP | ≤0.15 | ≤1.00 | ≤0.005 | ≤0.20 | ||
VDA 239-100 CR330Y590T-DP | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
VDA 239-100 CR440Y780T-DP | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
VDA 239-100 CR590Y980T-DP | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
VDA 239-100 CR700Y980T-DP | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
Grade | Mechanical property | ||||
YS | TS(MPa) | EL（%） | |||
VDA 239-100 CR290Y490T-DP | 290-380 | 490-600 | ≥24 | ||
VDA 239-100 CR330Y590T-DP | 330-430 | 590-700 | ≥20 | ||
VDA 239-100 CR440Y780T-DP | 440-550 | 780-900 | ≥14 | ||
VDA 239-100 CR590Y980T-DP | 590-740 | 980-1130 | ≥10 | ||
VDA 239-100 CR700Y980T-DP | 700-850 | 980-1130 | ≥8 | ||
Grade | Chemical composition | |||||||
C% | Si% | Mn% | P% | S% | Al% | |||
VDA 239-100 HR330Y580T-DP | ≤0.14 | ≤1.00 | ≤2.20 | ≤0.060 | ≤0.010 | 0.015-0.1 | ||
Grade | Chemical composition | |||||
Ti%+Nb% | Cr%+Mo% | B% | Cu% | |||
VDA 239-100 HR330Y580T-DP | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
Grade | Mechanical property | ||||
YS | TS(MPa) | EL（%） | |||
VDA 239-100 HR330Y580T-DP | 330-450 | 580-680 | ≥19 | ||
Dual-phase steels with improved formability contain mainly ferrite and martensite, with small amounts of bainite and retained austenite.
Dual phase steels are particularly suited for forming operations that involve high stretching portions because they show a low yield ratio (R/Rm) at high tensile strengths.
Grade | Chemical composition | |||||||
C% | Si% | Mn% | P% | S% | Al% | |||
VDA 239-100 CR440YT780-DH | ≤0.18 | ≤0.80 | ≤2.50 | ≤0.050 | ≤0.010 | 0.015-1.0 | ||
VDA 239-100 CR700YT980-DH | ≤0.23 | ≤1.80 | ≤2.90 | ≤0.050 | ≤0.010 | 0.015-1.0 | ||
Grade | Chemical composition | |||||
Ti%+Nb% | Cr%+Mo% | B% | Cu% | |||
VDA 239-100 CR440YT780-DH | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
VDA 239-100 CR700YT980-DH | ≤0.15 | ≤1.40 | ≤0.005 | ≤0.20 | ||
Grade | Mechanical property | ||||
YS | TS(MPa) | EL（%） | |||
VDA 239-100 CR440YT780-DH | 440-550 | 780-900 | ≥18 | ||
VDA 239-100 CR700YT980-DH | 700-850 | 980-1180 | ≥13 | ||
VDA 239-100 CR290Y490T-DP | ||
VDA 239-100 CR330Y590T-DP | ||
VDA 239-100 CR440Y780T-DP | ||
VDA 239-100 CR590Y980T-DP | ||
VDA 239-100 CR700Y980T-DP | ||
VDA 239-100 HR330Y580T-DP | ||
VDA 239-100 CR440YT780-DH | ||
VDA 239-100 CR700YT980-DH |