What is the BBNSteel company 50CrMo4 flat steel stock list

What is the BBNSteel company 50CrMo4 flat steel stock list

What is the BBNSteel company 50CrMo4 flat steel stock list

The company adheres to the "variety, quality and efficiency" road. We have established a technology center, a brand cultivation management system and a quality control system. Now the company has formed an independent innovation system integrating 50CrMo4 flat steel production, learning, research and marketing. Our company has passed ISO9001 quality management system certification and ISO10012 measurement management system certification.

Q550B steel is a low-alloy high-strength structural steel grade. Steel Q550A is not required for impact toughness test; Q550B is for impact toughness test at room temperature (20℃); Q550C is for 0℃ impact toughness test; Q550D is for impact toughness test at -20℃; Q550E grade is for impact toughness test Make impact toughness test at -40℃. The impact toughness test uses Charpy V-notch specimens. The impact toughness index is Akv.

Compared with 15Cr steel, 20Cr alloy has higher strength and hardenability. The critical hardening diameter in oil is 4-22mm, and the critical hardening diameter in water is 11-40mm, but the toughness is poor. This 50CrMo4 flat steel alloy steel 50CrMo4 flat steel still has a tendency to grow grains during carburization, and direct quenching at lower temperature has a greater impact on impact toughness, so secondary quenching is required after carburization to improve the toughness of the core of the part, and there is no temper brittleness.

Boiler steel plate mainly refers to the hot-rolled medium and thick plate materials used to manufacture superheater, main steam pipe and heating surface of boiler fire chamber. The commonly used 50CrMo4 flat steel, boiler steel is low carbon killed steel smelted in open furnace or low carbon steel smelted in electric furnace, with carbon content in the range of 0.16% - 0.26%.

asme sa514 grade M quenched and tempered alloy element composition%
C: 0.12-0.21, Si: 0.20-0.35, Mn: 0.45-0.70, P max.: 0.035, S max.: 0.035, Ni: 1.20-1.50, Mo: 0.45-0.6.0, B: 0.001-0.005
The mechanical properties in thickness (mm)T≤65
Yield strength (≥Mpa): 690
Tensile strength (Mpa):760-895
Elongation in ≥,%: 18

The automobile steel coil and sheets are one of our main steel materials exported to the overseas. For any questions about automobile steel, for example, JIS G3113 SAPH440 50CrMo4 flat steel chemical & mechanical composition, S355MC material specification, S700MC material properties, QSTE 380 TM equivalent, please contact us freely. Our sales person and technician will give you professional answers. And welcome to consult us about automobile steel price.

To provide customers with the most satisfactory service and realize the win-win of economic and social benefits, our company promises to provide excellent 50CrMo4 flat steel products in this bidding, and in line with the attitude of being serious and responsible to customers, before sending goods to users, the 50CrMo4 flat steel technical personnel shall confirm that there is no fault in the equipment before sending goods to users, and then send goods and products to users, and formulate the following service terms.



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