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Pin shaft commonly used materials
Jan 08, 2020

pin shafts are a type of standardized fasteners that can be fixedly connected statically or moved relative to the connected part. They are mainly used at the hinge of two parts to form a hinge connection. The pin shaft is usually locked with a split pin shaft, which is reliable and easy to disassemble. The international standard for pin shafts is ISO 2341: 1986. Chinese standard GB / T882-2008 .


Common materials

C45(1.0503)

The GB / T699-1999 standard stipulates that the 45 steel has a tensile strength of 600 MPa, a yield strength of 355 MPa, an elongation of 16%, a section shrinkage of 40%, and an impact energy of 39.

C45 steel is a common material for shaft parts. It is cheap and can be obtained after quenching and tempering (or normalizing). It can also obtain comprehensive mechanical properties such as high strength and toughness. The surface hardness after quenching can be Up to 45 ~ 52HRC. 40Cr and other alloy structural steels are suitable for medium-precision and high-speed shaft parts. After tempering and quenching, this type of steel has good comprehensive mechanical properties. motor shaft extension coupler.

C45 steel (DIN EN C45 / JIS S45C / ASTM 1045) is widely used in machinery manufacturing, and its mechanical properties are very good. But this is a medium carbon steel, the quenching performance is not good, 45 steel can be hardened to HRC42 ~ 46. Therefore, if the surface hardness is required, and the superior mechanical properties of 45 # steel are desired, the surface of 45 # steel is often quenched (high-frequency quenching or direct quenching), so that the required surface hardness can be obtained.

 

2, 40Cr

40Cr is a commonly used material for shaft parts. It is cheap and can be obtained after quenching and tempering (or normalizing). It can also obtain comprehensive mechanical properties such as high strength and toughness. The surface hardness after quenching can reach 45 ~ 52HRC.

40Cr and other alloy structural steels are suitable for medium-precision and high-speed shaft parts. After quenching and tempering, this type of steel has good comprehensive mechanical properties.

40Cr is China's GB standard steel number. 40Cr steel is one of the most widely used steels in machinery manufacturing. After quenched and tempered, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. Steel has good hardenability. It can be hardened to Ф28 ~ 60mm when water quenched, and Φ15 ~ 40mm when oil quenched. In addition to quenching and tempering, this steel is also suitable for cyanidation and induction hardening. The cutting performance is good. When the hardness is HB174 ~ 229, the relative cutting workability is 60%.

 

3, 30CrMnTi

It has higher strength and hardenability than 20CrMnTi steel, but its impact toughness is slightly lower. It is mainly used as carburizing steel. After carburizing, it can be directly quenched by lowering the temperature. It has high bending strength and good wear resistance. Can be used after quenching at low temperature and tempering, and has medium cutting workability. Used in the manufacture of heavy-duty carburizing parts with large cross-sections and gears, gear shafts, worms, etc. that have a large force in the tractor industry. hydraulic motor shaft coupling

 

4.35CrMnSi

Standard: GB / T 3077-1988

35CrMnSi steel is a low-alloy ultra-high-strength steel. It has good comprehensive mechanical properties after heat treatment, high strength, sufficient toughness, hardenability, weld ability, and process ability, but it has low corrosion resistance and oxidation resistance. It is used after low temperature tempering or isothermal quenching. types of pump couplings pdf

35CrMnSi steel is a material with good hardenability. After proper heat treatment, it can obtain comprehensive mechanical properties with good strength, hardness, toughness and fatigue strength, which can adapt to the more complex working conditions of coal mining

Differences between pin shafts and pin shafts

 

The pin shaft is used to locate and fasten parts; it is available in cylindrical and conical types.  pin shafts are generally installed by pressing in or knocking in with soft metal.  pin shafts are usually conical, pointed or pointed wood, metal pegs, used to nail or fasten (wood planks, tiles, soles, uppers, furniture molds and components) or fill holes.  pin shafts play a pivotal role in the connection of mechanical parts. According to the shape and function, it can be divided into: split pin shaft, conical pin shaft, cylindrical pin shaft, slot pin shaft, etc.

In 1986, China adopted the ISO fastener product standard for the first time and revised and issued a national standard for product sales. For details, please refer to the product standard. Among the pin shaft products, cylindrical pin shafts, tapered pin shafts and split pin shafts are commodity fasteners with large production and wide use, and are also irreplaceable fastener products.

 

pin shafts are a type of standardized fasteners that can be fixedly connected statically or moved relative to the connected part. They are mainly used at the hinge of two parts to form a hinge connection. The pin shaft is usually locked with a split pin shaft, which is reliable and easy to disassemble. The international standard for pin shafts is ISO 2341: 1986. National standard GB / T882-2008.

 

Difference between the two: There are many types of pin shafts, including post pin shafts, tapered pin shafts, elastic pin shafts etc. Most pin shafts are used for fixed connections, while pin shafts are often used for living hinge points

 

Xiamen Zhonglida Machinery Co., Ltd. has more than ten years of pin shaft production experience. From the beginning, it has provided pin shaft parts for Chinese and Japanese companies. Now it is home appliance manufacturers in many countries in Europe, the United States, Japan, Southeast Asia and other places. Product manufacturers, auto parts manufacturers provide customized, shaft (load bearing shafts, drive shafts), pin shafts, bushings, cores, valves and other customized metal parts. Passed ISO 9001: 2015 certification and adopted IATF16949-2016 quality management system to meet most of our customers' requirements for suppliers.

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