42CrMo4 / JIS SCM440 / AISI 4140 1.7225 Alloy Steel Plate Engineering

BS EN 42crmo4 Alloy Steel is a common chromium-molybdenum steel that usually used after quenched and tempered, with high intensity, high hardenability. BS EN 42CrMo4 round steel has better performance than 34CrMo4 steel due to the carbon and chromium content is higher. 42CrMo4 alloy steel has higher strength and hardenability. The 42CrMo4 alloy material also has high fatigue strength and good low-temperature impact toughness. The temper brittleness is not obvious.

Although 42CrMo4 steel is more expensive than 41Cr4 steel, it is more preferable in terms of material properties. EN 42CrMo4 alloy engineering steel materials have been widely used in automotive driving elements. Otai Steel is able to supply you prime quality of 42CrMo4 alloy steel materials with wide range.

1.42CrMo4 Alloy Steel Supply Range

42CrMo4 Round bar Sizes: 10mm – 3000mm
Steel 42CrMo4 Flat and Plate: 10mm-1500mm thickness x 200-3000mm width
Other steel shape and sizes available according to your requirements.

Surface condition: Black, rough machined, peeled, turned or other requirements according to your requirements.

2.BS EN 42CrMo4 Alloy Steel Relevant Specifications and Equivalents

3.42CrMo4 Alloy Steel Chemical Composition

4. DIN 42CrMo4 Alloy Steel Mechanical Properties

5. Heat Treatment of 42CrMo4 Steels

Annealing of 42CrMo4 Steels

• Heat steel 42CrMo4 forged steel slowly and thoroughly to 800-850°C;
• Cool slowly in the furnace to the temperature 480°;
• Complete annealing the steel in the air.

​We have six subsidiaries located in Shanghai, Zhejiang, Jiangsu and Hongkong, which have built great relationship with the metal facilities abroad and at home, so as to provide excellent services for our clients.

We have own entire system for pre-sale, in-sale and after-sale process. And our business scope covers technical consultation, technology development, technology projects and technology service in the field of manufacturing and selling the special steel plate, super stainless steel, titanium and nickel alloys, chrome moly alloys, aluminum alloys products etc. All the materials can be provided with the shape of plate, bar, pipe, tube, wire, beams, flange, fittings etc. The business of our group was separated into four parts: precision machining of special metal, special metal selling in domestic market, special metal selling in global market, special metal supply chain derivative services(such as agent purchasing, agent selling, supply chain finance etc).
Providing quality products, excellent services, competitive prices and prompt delivery, we are looking forward to cooperating with clients all around the world.