precision forging SWRH42B steel forgings

precision forging SWRH42B steel forgings

SWRH42B high carbon steel is often called tool steel, mainly used to manufacture cutting tools, etc. The carbon content ranges from 0.60% to 1.70%. It is hard and brittle and can be quenched. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%. After heat treatment, high hardness (HRC60-65) and good wear resistance can be obtained. 2. The hardness is moderate in the annealing state and has good machinability. 3. Raw materials are easy to obtain and the production cost is low.

Generally, the spark identification method of low carbon steel is: the whole fire beam is grass yellow with red, and the light is moderate. There are slightly more streamlines and a longer length. It gradually expands and thickens from the root, and gradually shrinks at the tail, and the tail droops into a semi-arc. There are not many flowers, and the burst flowers are four-branched primary flowers, which are star-shaped and have thick awns. The whole fire beam of medium carbon steel is yellow and bright. There are many thin streamlines, and the tail is straight and has a forked tip. The burst flowers are divided into multiple forked secondary flowers with nodes. The parts where the streamlines burst, because the temperature is higher than other parts of the streamlines, form bright and fat bright spots, called nodes, with clear awns, more small flowers and pollen, and incomplete two-layer compound flowers begin to appear. The sparks are blooming, the shooting force is large, and the amount of flowers is large, accounting for about three-fifths of the whole bouquet. Identification of high carbon steel: The whole bouquet is yellow, the root of the breadth is dark, the middle is bright, and the tail is second. There are many thin streamlines, short length, straight shape, and strong shooting force. The burst flowers have multiple forks, two or three bursts, and three layers of compound flowers. The amount of flowers is large and crowded, accounting for more than three-quarters of the whole fire beam. The awns are slender and large in quantity, with dense spacing, and the awns are mixed with more pollen.

SWRH42B high carbon steel is often called tool steel, with a carbon content ranging from 0.60% to 1.70%, which can be hardened and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%. After proper heat treatment or cold drawing hardening, high carbon steel has high strength and hardness, high elastic limit and fatigue limit (especially notch fatigue limit), and decent cutting performance, but poor welding performance and cold plastic deformation ability. Due to the high carbon content, cracks are easily generated during water quenching, so double liquid quenching (water quenching + oil cooling) is often used, and small cross-section parts are mostly oil quenched. This type of steel is generally used after medium temperature tempering or normalizing or in the surface quenching state after quenching. It is mainly used to manufacture springs and wear-resistant parts. Carbon tool steel is a high carbon steel that basically does not add alloying elements. It is also a steel type with low cost, good hot and cold processability, and a wide range of applications among tool steels. Its carbon content is 0.65-1.35%, and it is a steel specially used for making tools.

Company Introduction:

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. was established in 1997. It is a professional manufacturer of forgings for automobile parts, marine gearbox accessories, and engineering machinery accessories. It can forge copper alloys, titanium alloys, aluminum alloys, carbon steel, stainless steel, high-temperature alloys and other materials. The company covers an area of ​​more than 10,000 square meters and a standard factory building of 5,000 square meters. It has a complete set of advanced production technology and equipment from mold design, development, parts manufacturing and processing. It has multiple die forging production lines mainly based on 4000T, 2500T, 1600T, 1000T, and multiple auxiliary production lines. The annual output is 15,000 tons. Exports to more than 20 countries and regions such as Germany, the United States, the United Kingdom, France, Russia, etc.