BH grades possesses higher yield and tensile strength than conventional low carbon steel, excellent formability (r & n-value) along with bake hardening strength of 35-50 MPa. BH grades can replace lower strength material with thicker gauge and provide better fuel efficiency by decreasing the weight of ArcelorMittal Dual Phase 980 Y700 Very high strength steel The strain hardening capacity of these steels combined with a strong bake hardening effect gives them excellent potential for reducing the weight of structural parts and even notably in the case of FullFinished 280 DP (FF 280 DP) skin parts.Applications:Given their high energy absorption capacity and fatigue strength, cold rolled Dual
The TRIP range of steels comprises 2 cold rolled grades in both uncoated and coated formats (TRIP 690 and TRIP 780) and one hot rolled grade (TRIP 780), identified by their minimum tensile strength eed in MPa.Applications:As a result of their high energy absorption capacity and fatigue strength, TRIP steels are particularly well suited ArcelorMittal Technical Data SheetsArcelorMittal 180 BH Bake hardening steel, Cold rolled ArcelorMittal 195 BH Bake hardening steel, Cold rolled ArcelorMittal 220 BH Bake hardening steel, Cold rolled Automotive VAMA ChinaThe following table shows the availability of the various steel grade families from VAMA production lines. X stands for unexposed surface finish, and Z for best surface finish for exposed parts. 2. Steel for Hot Stamping application USIBOR® 1500P:Usibor® 1500P is a hot formed grade intended for use in automobile structural and safety components.
Figure 1:Bake hardening phenomenon. Bake-Hardenable (BH) Steels. A bake-hardenable steel is any steel that exhibits a capacity for a significant increase in strength through the combination of work hardening during part formation and strain aging during a subsequent thermal cycle such as a paint-baking operation. Bake-hardening steels - Salzgitter Flachstahl GmbHVDA 239-100 DIN EN 10346 Steel grade no. CR180BH HX180BD 1.0914 Cold Rolled Steel AK SteelCold Rolled Steels are available in thicknesses from 0.015 0.135 in. (0.381 3.429 mm), and widths to 80 in. (2032 mm), depending on dimensions and product quality.
retaining good forming performance. The gain in yield strength through the "bake hardening" (BH) effect is generally greater than 40 MPa. Thanks to this BH effect, ArcelorMittal steels offer two advantages compared to conventional drawing quality steels:Improved dent Drawing steels - ArcelorMittalThis range of non-alloyed mild steels is designed for deep and extra-deep drawing applications. These products are used extensively in the automotive industry, for both visible and structural parts. The guaranteed low scatter in their mechanical properties ensures optimum productivity in drawing press operations.The range of cold-rolled steels has been extended to include the ultra high Electrogalvanized Steel AK SteelBake Hardenable (BH) grades offer good formability with increased strength from work hardening and subsequent paint/bake cycle. Dent Resistant (DR) grades offer good formability with increased strength from a high work hardening rate. High Strength Low Alloy Steel (HSLAS) MPa MPa ksi. MPa BH 180 BH 210 BH 220 BH 240 BH 250 DR 180 DR 190 DR 210
Steels in the HSLA (High Strength Low Alloy) range are hardened by a combination of precipitation and grain size refining, resulting in high strength with low alloy content. This enhances weldability and choice of coatings, since these steels exhibit neither weld-zone softening nor grain coarsening. These grades are particularly suitable for structural components such as suspension systems High Strength IF and Bake Hardenable steels acc. to VDA Cold-rolled bake-hardening steel with minimum yield strength 240 MPa hot-dip galvanized with a coating weight of at least 40 g/m² per side, surface quality for outer skin. Further details on the possible surfaces and coatings for the IF and BH steels according to the VDA 239-100 can be found under the respective menu item. IntroductionIntroduction - ArcelorMittalThe table provides an overview of the availability of various sheet steel grades from ArcelorMittal. These are available as hot rolled or cold rolled steel substrates. Depending upon customer requirements, the cold rolled products are available as bare or with a variety of corrosion protection coatings.
The table provides an overview of the availability of various sheet steel grades from ArcelorMittal. These are available as hot rolled or cold rolled steel substrates. Depending upon customer requirements, the cold rolled products are available as bare or with a variety of corrosion protection coatings. On the mechanism of bakehardening - Elsen - 1993 - Steel Marijke De Meyer, Katrien De Wit, Bruno De Cooman, The bake hardening behaviour of electrogalvanized cold rolled CMnSi and CMnAlSi TRIP steels, Steel Research, 10.1002/srin.200005723, 71, 12, (511-518), (2016). Solid solution steels - ArcelorMittalSolid solution steels are designed to provide high strength while maintaining good drawability. These steels are hardened in particular by the presence of phosphorous in solid solution in ferrite.Their combination of mechanical strength and drawability makes these grades suitable for numerous applications.Solid solution steels are aluminium-killed grades with lower drawing performance than the
Cold-rolled strip Mechanical properties Surface refinement Yield strength Tensile strength Elongation Vertical anisotropy Strain harding exponent Bake-hardening Test direction transverse to rolling direction R p 0.2 [MPa] R m [MPa] A 80 [%] min. r 90 min. n 90 min. BH 2 [MPa] min. To DIN EN Steel grade BHZ 180 UC / EG 180230 290360 34 1.6 ArcelorMittal 180 BH Bake hardening steel, Cold rolledArcelorMittal 180 BH Bake hardening steel, Cold rolled. Categories:Metal; Ferrous Metal; Alloy Steel. Material Notes:Available in the following:uncoated (HC180B), electroglavanized (HC180B+ZE) and Extragal®/Galvannealed (HC180BD+Z) Description:The composition and processing of these steels are designed to promote a significant increase in yield strength during low-temperature heat