SK5 material proves what kind of material SK5 is

SK5 is a carbon tool steel, the standard is JIS G4401, which has high hardness and wear resistance after quenching and tempering, but has low hot hardness, poor hardenability, easy deformation, low plasticity and strength.

The above data is an average in % 2].

Carbon C: Silicon Si:

Manganese mn:sulfur s:

Phosphorus p:

Chromium Cr: Permissible Residual Content When Fabricating Lead Bath Quenched Steel Wire) Nickel Ni: Permissible Residual Content When Fabricating Lead Bath Quenched Steel Wire) Copper Cu:

Allowable residual content When manufacturing lead bath quenched steel wire) Note: Allowable residual content cr + Ni + Cu When manufacturing lead bath quenched steel wire) [1] Mechanical properties. Hardness:

annealed, 187HB, indentation diameter ; Quenching, 62HRC heat treatment specification.

Heat treatment specifications.

Specimen quenching 780 820, water cooled.

Thermal working specifications.

The starting temperature is 1000-1050 and the end temperature is 850 °C.

Quenching specifications. The quenching temperature is 730-760, water-cooled, water-oil double-liquid cooling or alkaline bath cooling, and the quenching hardness is 57HRC. Tempering temperature 160-180 °C. 1]

Typical application examples.

1. It is used for mold parts that require high hardness and wear resistance due to sliding friction, such as guide pins, bushings, ejector pins, etc.

2. Blade tools, cold heading molds, scrapers and files for processing wood.

Delivery status. The steel is delivered in annealed condition. By agreement between the two parties, it can also be delivered without annealing.

Corresponding to the brand of each country.

Corresponding Chinese GB grade: T8MN (A).

Corresponding to German DIN and DIN grade: C85W

Corresponding to British BS, BSEN grade: 060A81

Corresponding to French NF NTEN grade: Y75

SK5 is a Japanese carbon tool steel, and the grade is similar to that of domestic T8 and T9. Contains C,, contains Si less than or equal to, contains Mn less than or equal to, contains P less than or equal to, contains S less than or equal to.

<>SK5 is a carbon tool steel. SK5 is known as carbon tool steel, which has high hardness and wear resistance after quenching and tempering, but it has low hot hardness, poor hardenability, very easy deformation, and low plasticity and strength. SK5 can be used as a variety of tools that require high hardness and wear resistance, such as dies and punches with simple shapes, tools for cutting metal, drilling tools, milling cutters for woodworking, countersunk drills, axes, chisels, longitudinal hand saws, and secondary tools such as fitter assembly tools and rivet dies.

The treatment specification of SK5 is, heat treatment specification: sample quenching 780 820, water cooling. Thermal working specifications.

The starting temperature is 1000-1050 and the end temperature is 850 °C. Quenching specification: quenching temperature 730-760, water-cooled, water-oil double-liquid cooling or alkaline bath cooling, quenching hardness 57HRC, tempering temperature 160-180.

Carbon tool steel.

Carbon structural steel is divided into quality grades according to the sulfur and phosphorus content in the steel. Carbon structural steel is a type of ordinary carbon steel that does not contain alloying elements, and is also commonly known as ordinary carbon steel. Carbon structural steel is the lowest among all types of steel, with appropriate strength, good plasticity, toughness, process properties and processing properties.

This type of steel has the highest output and a wide range of uses, and is mostly rolled into plates, profiles (round, square, flat, work, groove, angle, etc.), wire rod and profiles, which are used in the manufacture of construction engineering structures such as plants, bridges and ships.

SK-5 is a Japanese Hitachi carbon tool steel, a general steel for low hardenability cold work dies, used and used as punches and fixtures, as well as high hardness and wear-resistant parts, such as guide bushing guide pins.

After quenching and tempering, it has high hardness and wear resistance, but low hot hardness, poor hardenability, easy deformation, low plasticity and strength. It is used as a variety of tools that require high hardness and wear resistance, such as molds and punches with simple shapes, tools for cutting metal, drilling tools, milling cutters for woodworking, countersunk drills, axes, chisels, longitudinal hand saws, fitter assembly tools, and rivet dies.

Carbon C : Silicon Si: Manganese Mn:

Sulfur s : phosphorus p : chromium cr:

Allowable Residual Content When manufacturing lead bath quenched steel wire) Nickel Ni: Permissible residual content When manufacturing lead bath quenched steel wire) Copper Cu: Permissible residual content When manufacturing lead bath quenched steel wire) Note:

Allowable residual content cr+Ni+cu when manufacturing lead bath quenched steel wire).

<> is made of steel. SK5 has undergone a quenching process in the process of forging production, due to the quenching process, SK5 has a relatively large strength, not easy to be broken, not easy to be bent, in addition, it also has a relatively strong wear resistance, such as scissors, scissors with better quality are generally used in SK5 this kind of steel, widely used in some machinery industries, such as grinding machines, cutting machines and so on. The disadvantage is that it is not very heat-resistant, and it is not suitable for Zhengfeng celery to be used in industrial environments with high temperatures, such as smelters, quenching furnaces, etc., and generally does not use SK5 steel.

<>SK5 is made of carbon tool steel, only the hardness and wear resistance are very good in quenching and tempering, and the product has high precision, strong toughness, and stable quality, but the disadvantage is that the hot hardness is relatively low, the hardenability is poor, the plasticity and strength are relatively low, and it is easy to deform. It can be used to make some tools or mold parts that require high hardness and wear resistance, such as guide pins, ejector pins, etc. Or make some bladed tools for processing wood, such as molds and punches, knives for cutting metal, axes, chisels, etc.

1. SK5 is carbon tool steel, and the standard is JIS G4401.

2. After quenching and tempering, it has high hardness and wear resistance, but low hot hardness, poor quenching and transparent resistance, easy deformation, low plasticity and strength. It is used as a variety of tools that require high hardness and wear resistance, such as molds and punches with simple shapes, cutting tools, drilling tools, milling cutters for woodworking, countersunk drills, axes, chisels, longitudinal hand saws, and secondary tools such as fitter assembly tools and rivet dies.