The micro-alloyed cold-rolled steels are produced with minimum yield strengths of 260 to 500 MPa. The high strength properties result from precipitation adhesion due to finely distributed carbonitrides and a fine-grained microstructure. Even very small amounts of the elements titanium and/or niobium in the range of a few 0.01 % result in a significant increase in yield strength and tensile strength. The additionally required solid solution strengthening is achieved via the alloying elements Mn, Si and by adding P.
Compared to deep-drawing steels, micro-alloyed steels are guaranteed higher minimum values for yield strength and tensile strength. These key data enable a safe and practical operational strength assessment. With higher yield strength and tensile strength, the vibration resistance level also increases.
Micro-alloyed steels are highly suitable for joining and can be welded both in pure and mixed joints with other common types of steel. The prerequisite is that the welding parameters are matched to the material.
Micro-alloyed steels are particularly suitable for structural and crash-relevant parts, such as beams. The component geometry and the forming method plan should be adapted to the strength level. In this way, the individual advantages can be optimally utilised and the steels can thus be used for complex drawn parts. This family of materials is particularly well suited for multi-stage forming processes.
Due to their good processing behaviour, microalloyed cold-forming steels can be used, among other things, in vehicle construction in the body-in-white, especially in the area of crash-relevant structural parts such as beams and pillars, as well as in industrial applications.
KUAIMA steel company has more than ten years of experience in diversified operations and multi-product transactions, involving round bar, ship plate, seamless pipe, plate, coil, wire, bright bar, pipe fittings and a wide range of carbon steel, alloy steel And more product sizes of stainless steel materials, these products we produce meet national and international quality standards, such as ASTM, ASME, DIN, JIS, ISO, etc. The company has 25 production lines for various products, with an annual output of 500,000 tons, and is committed to Provide high-quality steel products and provide supporting services and solutions for global customers. Welcome to KUAIMA steel company.
Grade | C | Si | Mn | P | S | Al | Ti) | Nb) |
HC420LA | 0.14 | 0.5 | 1.6 | 0.03 | 0.025 | 0.015 | 0.15 | 0.09 |
Grade | Yield Strength (MPa) | Ultimate Tensile Strength (MPa) | Elongation at Break (%) |
HC420LA | 420–520 | 470–600 | 17 |
Product Name | HC380LA B340LA 15CRMO A709GR50 20CR 40CR 65MN alloy plate alloy sheet alloy steel plate |
Length | 1m-12m or as required |
Width | 0.6m-3m or as required |
Thickness | 3mm-300mm or as required |
Standard | AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc. |
Technique | Hot rolled High strength, high yield point |
Surface Treatment | Clean, blasting and painting according to customer requirement |
Thickness tolerance | ±0.1mm |
Material | Q390 Q420 Q460 Q500 Q550 Q690 SAPH310,SAPH370,SAPH400,APH440,SPC590DU,SPFC540,SPFC390,SPFH540,SPFH590 |
Application | It is mainly used to make structural parts such as car girder, beam, transmission shaft and car chassis parts, which can reduce the weight of the parts. |
MOQ | 25tons.We also can accept sample order. |
Shipment time | Within 15-20 workdays after receiving deposit or T/T |
Export packing | Waterproof paper, and steel strip packed. |
Capacity | 250,000 tons/year |
HC340LA Carbon Steel Plate | HC340LA Carbon Steel PlateFactory |
HC380LA Carbon Steel Plate | HC380LA Carbon Steel PlateFactory |
HC420LA Carbon Steel Plate | HC420LA Carbon Steel PlateFactory |
B340LA Carbon Steel Plate | B340LA Carbon Steel PlateFactory |
B410LA Carbon Steel Plate | B410LA Carbon Steel PlateFactory |
15CRMO Carbon Steel Plate | 15CRMO Carbon Steel PlateFactory |
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