MITTAL DI-FORM T500

Alloy Digest ◽  
2006 ◽  
Vol 55 (9) ◽  
Keyword(s):  
Tensile Strength ◽  
Automotive Industry ◽  
Dual Phase Steel ◽  
High Strength ◽  
Martensite Phase ◽  
Ferrite Phase ◽  
Dual Phase ◽  
Advanced High Strength Steel ◽  
Automotive Body ◽  
Soft Ferrite

Abstract Mittal Di-Form T500 is a dual-phase steel intended primarily for exposed outer automotive body panels (door, hoods, and fenders). Dual-phase steels are one of the important advanced high-strength steel products developed for the automotive industry. Their microstructure typically consists of a soft ferrite phase with dispersed islands of a hard martensite phase. The martensite phase is substantially stronger than the ferrite phase. The Di-Form grades exhibit low yield-to-tensile strength ratios and the name corresponds to the tensile strength. This datasheet provides information on tensile properties as well as deformation and fatigue. It also includes information on forming and joining. Filing Code: SA-556. Producer or source: Mittal Steel USA Flat Products.

MITTAL DI-FORM T590, T600

Alloy Digest ◽  
2007 ◽  
Vol 56 (1) ◽  
Keyword(s):  
Tensile Strength ◽  
Automotive Industry ◽  
High Strength ◽  
Martensite Phase ◽  
Ferrite Phase ◽  
Dual Phase ◽  
Bend Strength ◽  
Low Carbon ◽  
Advanced High Strength Steel ◽  
Soft Ferrite

Abstract MITTAL DI-FORM T590 and T600 are low-carbon dual-phase steels containing manganese and silicon. Dual-phase (DP) steels are important advanced high-strength steel (AHSS) products developed for the automotive industry. Their microstructure typically consists of a soft ferrite phase with dispersed islands of a hard martensite phase. The martensite phase is substantially stronger than the ferrite phase. The DI-FORM grades exhibit low yield-to-tensile strength ratios. The numeric designation in the grade name corresponds to the tensile strength in MPa. This datasheet provides information on microstructure, tensile properties, and bend strength as well as fatigue. It also includes information on forming. Filing Code: SA-558. Producer or source: Mittal Steel USA Flat Products.

MITTAL DI-FORM T780, T980

Alloy Digest ◽  
2007 ◽  
Vol 56 (3) ◽  
Keyword(s):  
Tensile Strength ◽  
Automotive Industry ◽  
High Strength ◽  
Martensite Phase ◽  
Carbon Steels ◽  
Ferrite Phase ◽  
Dual Phase ◽  
Low Carbon ◽  
Advanced High Strength Steel ◽  
Soft Ferrite

Abstract MITTAL DI-FORM T780 and T980 alloys are low-carbon steels with a manganese and silicon composition. Dual-phase (DP) steels are one of the important advanced high-strength steel (AHSS) products developed for the automotive industry. Their microstructure typically consists of a soft ferrite phase with dispersed islands of a hard martensite phase. The martensite phase is substantially stronger than the ferrite phase. The DI-FORM grades exhibit low yield-to-tensile strength ratios and the name corresponds to the tensile strength. This datasheet provides information on forming. Filing Code: SA-563. Producer or source: Mittal Steel USA Flat Products.

MITTAL DI-FORM T700, HF80Y100T

Alloy Digest ◽  
2007 ◽  
Vol 56 (2) ◽  
Keyword(s):  
Automotive Industry ◽  
High Strength ◽  
Martensite Phase ◽  
Carbon Steels ◽  
Ferrite Phase ◽  
Dual Phase ◽  
Low Carbon ◽  
Advanced High Strength Steel ◽  
Dp Steels ◽  
Soft Ferrite

Abstract MITTAL DI-FORM T700 and HF80Y100T are low-carbon steels with a manganese and silicon composition. Dual-phase (DP) steels are one of the important advanced high-strength steel (AHSS) products developed for the automotive industry. Their microstructure typically consists of a soft ferrite phase with dispersed islands of a hard martensite phase. The martensite phase is substantially stronger than the ferrite phase. The DI-FORM grades exhibit low yield-to-tensile strengths, and the numeric designation in the name corresponds to the tensile strength. This datasheet provides information on microstructure and tensile properties as well as deformation and fatigue. It also includes information on forming. Filing Code: SA-561. Producer or source: Mittal Steel USA Flat Products.

MITTAL HI FORM HF70Y80T

Alloy Digest ◽  
2006 ◽  
Vol 55 (12) ◽  
Keyword(s):  
Tensile Strength ◽  
Dual Phase Steel ◽  
Martensite Phase ◽  
Ferrite Phase ◽  
High Yield ◽  
Dual Phase ◽  
High Yield Strength ◽  
Steel Microstructure ◽  
Automotive Body ◽  
Soft Ferrite

Abstract MITTAL HI FORM HF 70Y80T is a dual-phase steel with 550 MPa tensile strength used for automotive body structures. The dual-phase steel microstructure typically consists of a soft ferrite phase with dispersed islands of a hard martensite phase. The martensite phase is substantially stronger than the ferrite phase. The dual-phase 550 MPa grades are high yield strength to tensile strength ratio alloys for improved structural behavior. This datasheet provides information on tensile properties as well as deformation. It also includes information on forming. Filing Code: SA-557. Producer or source: Mittal Steel USA Flat Products.

MITTAL DI-FORM 140T, HB T965

Alloy Digest ◽  
2007 ◽  
Vol 56 (4) ◽  
Keyword(s):  
Tensile Strength ◽  
Yield Strength ◽  
Martensite Phase ◽  
Carbon Steels ◽  
Ferrite Phase ◽  
Dual Phase ◽  
Low Carbon ◽  
Dp Steel ◽  
Low Carbon Steels ◽  
Soft Ferrite

Abstract MITTAL DI-FORM 140T and HB T965 are low carbon steels with dual phase manganese and silicon composition. Dual-phase (DP) steel microstructures typically consist of a soft ferrite phase with dispersed islands of a hard martensite phase. The martensite phase is substantially stronger than the ferrite phase. The dual-phase grades, including those with high tensile strengths of 965 MPa (140 ksi), that are designed for forming (DI-FORM), also have low yield-strength-to-tensile-strength ratios to improve formability. This datasheet provides information on microstructure and tensile properties as well as deformation and fatigue. It also includes information on forming and surface treatment. Filing Code: SA-566. Producer or source: Mittal Steel USA Flat Products.

On the Practice of the Microstructure Adjustment to Improve the Strength-Plastic Comprehensive Performance of a C-Si-Mn Alloyed High-Strength Steel

2013 ◽  
Vol 631-632 ◽  
pp. 467-471
Author(s):  
Shuang Kuang ◽  
Guo Sen Zhu ◽  
Ying Hua Jiang
Keyword(s):  
Tensile Strength ◽  
Trip Steel ◽  
Dual Phase Steel ◽  
High Strength ◽  
Residual Austenite ◽  
Ferrite Matrix ◽  
Continuous Annealing ◽  
Dual Phase ◽  
Metastable Austenite ◽  
Multi Phase

Four continuous annealing cycles were adopted to get four kinds of multi-phase steels using 0.2C-1.5Si-1.8Mn [wt%] alloyed raw steel and the microstructures and mechanical properties were investigated. The results show that traditional ferrite-martensite dual phase steel has a tensile strength of more than 1000MPa, but has the lowest strength-plastic product of only 18GPa%. The traditional ferrite, bainite and residual austenite TRIP steel has the highest elongation of 31% and hardening exponent of 0.24, but its tensile strength is just over 800MPa. Introducing hard matrix such as acicular bainitc ferrite or martensite to replace the polygonal ferrite matrix, meanwhile introducing metastable austenite, is conducive to obtain high strength and good ductility. Those kinds of modified TRIP steel with hard matrix can reach above 20GPa% of the strength-plastic product on the 1000MPa grade.

DUAL-TEN 780

Alloy Digest ◽  
2004 ◽  
Vol 53 (5) ◽  
Keyword(s):  
United States ◽  
Physical Properties ◽  
Tensile Properties ◽  
Automotive Industry ◽  
Dual Phase Steel ◽  
High Strength ◽  
Dual Phase ◽  
Bend Strength ◽  
Hsla Steels ◽  
Structural Applications

Abstract DUAL-TEN 780 (UTS 780 MPa, or 113 ksi) is a dual-phase steel for the automotive industry. Dual-phase steels are most commonly used in structural applications where they have replaced more conventional high-strength low-alloy (HSLA) steels. Applications include front and rear rails, crush cans, rocker reinforcements, pillar reinforcements, inner and outer cowl, back panels, cross members, bumpers, and door intrusion beams. This datasheet provides information on physical properties, tensile properties, and bend strength. It also includes information on forming and joining. Filing Code: SA-535. Producer or source: United States Steel.

Study of Microstructure and Mechanical Properties of Hot-Rolled Ultra-High Strength Ferrite-Bainite Dual Phase Steel

2018 ◽  
Vol 921 ◽  
pp. 208-213 ◽  
Author(s):  
Zhuang Li ◽  
Wei Lv
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Dual Phase Steel ◽  
High Strength ◽  
Dual Phase ◽  
Finish Rolling ◽  
Fast Cooling ◽  
Hot Rolled ◽  
Low Temperature Rolling

Effects of thermo-mechanical control processing (TMCP) on microstructure and mechanical properties of hot-rolled ultra-high strength ferrite-bainite dual phase steel were investigated on a laboratory hot rolling mill. The results have shown that the microstructure containing ferrite and bainite can be obtained by TMCP. Ultimate tensile strength of all the specimens exceeded 1000MPa. Finish rolling temperatures affect the mechanical properties of ultra-high strength ferrite-bainite dual phase steel. Ultimate tensile strength reached 1078MPa at relatively low finish rolling temperature because of the ferrite grains refined. Fast cooling after low temperature rolling results in the ferrite grains refined and the formation of martensite islands. As a result, the product of ultimate tensile strength and total elongation (Rm×A50) of specimen 4 with fast cooling after low temperature rolling reaches the maximum value (18096MPa%).

DUAL-TEN 600

Alloy Digest ◽  
2004 ◽  
Vol 53 (4) ◽  
Keyword(s):  
United States ◽  
Physical Properties ◽  
Tensile Properties ◽  
Automotive Industry ◽  
Dual Phase Steel ◽  
High Strength ◽  
Dual Phase ◽  
Bend Strength ◽  
Hsla Steels ◽  
Structural Applications

Abstract DUAL-TEN 600 is a dual-phase steel for the automotive industry. Dual-phase steels are most commonly used in structural applications where they have replaced more conventional high-strength low-alloy (HSLA) steels. Applications include front and rear rails, crush cans, rocker reinforcements, pillar reinforcements, inner and outer cowl, back panels, cross members, bumpers, and door intrusion beams. This datasheet provides information on composition, physical properties, microstructure, tensile properties, and bend strength as well as deformation. It also includes information on forming and joining. Filing Code: SA-533. Producer or source: United States Steel.

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