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高強度鋼-雙相（DP）鋼
High strength steel and dual phase (DP) steel
DP鋼板的主要組織是鐵素體和馬氏體，其中馬氏體的含量在5%～20%，強度為500～1200MPa。雙相鋼具有低屈強比、高的加工硬化指數、高烘烤硬化性能、沒有屈服延伸和室溫時效等特點。DP鋼一般用于需高強度、高的抗碰撞吸收能且也有一定成形要求的汽車零件， 如車輪、 保險杠、 懸掛系統及其加強件等。雙相鋼的基本成分為C和Mn，有時為了提高淬透性還添加一定量的Cr和Mo。
The main microstructure of DP steel plate is ferrite and martensite, the content of which is 20% ~ 5%, the strength is 500 ~ 1200MPa. The dual phase steel has the characteristics of low yield strength ratio, high work hardening index, high bake hardening property, no yield extension and room temperature aging. DP steel is generally used for the need of high strength, high impact resistance and can also have a certain form of forming requirements of automotive parts, such as wheels, bumper, suspension system and its strengthening parts, etc.. The basic components of the dual phase steel are C and Mn, and sometimes in order to improve the degree of quenching, a certain amount of Cr and Mo are added.
高強度鋼-復相（CP）鋼

High strength steel and complex phase (CP) steel
CP鋼同TRIP鋼的組織類似，只是CP鋼中含有馬氏體而非殘余奧氏體。通過馬氏體和貝氏體以及析出強化的復合作用，CP鋼的強度可達800～1000MPa，特別適合于車門防撞桿、保險杠和B立柱等安全零件。
The CP steel is similar to that of the TRIP steel, but it is a CP steel that contains martensite rather than retained austenite. The strength of CP steel can reach 800 ~ 1000MPa, and is especially suitable for the safety parts of the door bumper, the bumper and the B column, through the combination of martensite and bainite and precipitation strengthening.
高強度鋼-馬氏體（M）鋼
High strength steel and martensite (M) steel
M鋼的生產是通過高溫的奧氏體組織快速淬火轉變為板條馬氏體組織，可通過熱軋、冷軋連續退火或成型后熱處理實現，是目前商業化高強度鋼板中強度級別最高的鋼種。主要用于成型要求不高的車門防撞桿等零件代替管狀零件，減少制造成本。
M steel production is rapidly quenched by high temperature austenite into lath martensite, through hot rolling, cold rolling and continuous annealing or heat treatment after forming, is currently the highest level of commercial steel strength in high strength steel. Mainly used for the molding requirements of the door is not high, such as the replacement of parts of the pipe parts of the pipe parts, reduce manufacturing costs.
高強度鋼-MnB鋼
High strength steel -MnB steel
MnB鋼或熱成形鋼主要含有Mn和B等元素，具有非常好的淬透性。熱成形過程包括將毛坯件加熱奧氏體化，然后在紅熱狀態將鋼板沖壓成形，然后利用模具的冷卻能力將零件淬硬成馬氏體。整個成形過程約需要15～25s。
MnB steel or hot formed steel mainly contains elements such as Mn and B, which have very good quenching properties. The hot forming process including blank austenitizing, and then steel stamping in the hot heat, then the cooling capacity of mould parts to be hardened into martensite. The whole forming process takes about 15 to 25s.
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