What is W18CR4V?

W18CR4V belongs to the national standard high-speed tool steel, and the implementation standard: GB T 9943-2008

W18Cr4V is a tungsten high-speed steel with high hardness, red hardness and high temperature hardness. Its heat treatment range is wide, quenching is not easy to overheat, heat treatment process is not easy to oxidize and decarburize, grinding processing performance is good. The hardness of the steel is maintained at HRC63 64 and HRC62 63 at 500 and 600 respectively, and it has good cutting performance for a large number of general processed materials.

Advantages of W18CR4V: strong versatility and mature process.

W18Cr4V disadvantages: serious carbide segregation, low thermoplasticity, tool hardness and red hardness can not meet the processing of extra-hard and extra-tough materials. The content of alloying elements is high and the cost is high.

W18CR4V cutting speed: 80 m sec (600 degrees Celsius).

W18CR4V Usage: Small cutters with complex shapes.

The chemical composition of W18Cr4V is shown in the following figure:

Material name: high-speed tool steel rod.

Grade: W18CR4V

Standard: GB T 9943-1988

W18CR4V high speed steel characteristics and scope of application:

It is a widely used tungsten general-purpose high-speed steel with high hardness, red hardness and high temperature hardness, and is easy to grind. It is suitable for tools that can maintain cutting performance at a working temperature of less than 600, such as turning, planing, milling, reaming, broaches, drills, various gear cutters and taps, dies, etc., and is suitable for processing soft or medium hardness (below 300 320HB) materials. and the production of high-temperature wear-resistant machinery zero.

W18CR4V High Speed Steel Chemical Composition:

Carbon C: Promise Deviation:

Silicon si: Promise Deviation:

Manganese mn: Promise bias:

Sulfur s:

Phosphorus p:

Chromium CR: Promise Deviation:

Nickel ni: Promised residual content

Copper cu: Promised residual content

Vanadium V: Promise Deviation:

Molybdenum mo: Deviation of acceptance: size 6, ; Size 6,

Tungsten w: Promise deviation: size 10, ; 10,±

W18CR4V High Speed Steel Mechanical Properties:

Hardness: Delivery Hardness: (Other Processing Methods) 269HB; (annealed) 255HB. Sample heat treatment system and quenching and tempering hardness: 63HRC

W18CR4V high-speed steel heat treatment specification and metallographic structure:

Heat treatment specification: quenching, 820 870 preheating, 1270 1285 (salt bath furnace) or 1270 1285 (chamber furnace) heating, oil cooling, 550 570 tempering 2 times, 1h each time.

W18CR4V high-speed steel delivery status: hot-rolled, forged, cold-drawn steel rods are delivered in annealed condition, hot-rolled, forged steel rods are annealed and other processing methods are delivered after peeling, light drawing, polishing or polishing.

W18CR4V is a kind of high-speed tool steel, which is tungsten high-speed steel, which has the characteristics of high hardness, high wear resistance and high red hardness.

W18Cr4V Chemical Composition:

c：w：cr：v：

si：≤mn：≤

MO: W18CR4V standard: GB T 9943-2008

Hello. W18CR4V is made of high speed steel.

Chemical composition (GB T 9943-2008 "High Speed Tool Steel"):

Carbon content, tungsten content, chromium content, vanadium content, silicon content less, manganese content less, molybdenum content less.

Hope mine can help you.

It is a high-speed steel with a hardness of 62 65HRC, which is suitable for cutting tools such as twist anchors, broaches, tapping, milling, parting, reamers and others. In terms of performance, W18CR4V is an all-round steel grade that can be used for cutting where hot hardness is not a priority. The W18CR4V is also suitable for cold room applications; For example, tools are used for punching, forming, stamping, and others.

It is an extremely high speed steel suitable for cutting tools such as twist anchors, broaches, tapping, milling, parting, reamers and others. In terms of performance, W18CR4V is an all-round steel grade that can be used for cutting where hot hardness is not a priority. The W18CR4V is also suitable for cold room applications; For example, tools are used for punching, forming, stamping, and others.

Benxi steel is a high-alloy steel grade that combines excellent wear resistance and high toughness for cold room operation.

Grade: W18CR4V

China ISC T51841

Corresponds to standard GB T 9943-2008

High-speed tool steel.

high-speed tool steels

Categorization of base ruler tool steels.

Tags: Ordinary High Speed Tool Steel (HSS).

Description Features and applications: Tungsten general-purpose high-speed steel, with high hardness, hot hardness and high temperature hardness, quenching is not easy to overheat, easy to grind; The disadvantages are low thermoplasticity and slightly less toughness. This steel grade used to be the most used, but its use decreased after the 70s of the 20th century.

It is mainly used to make turning tools, drills, milling cutters, reamers and other tools for high-speed cutting, and is also used as plate teeth, taps, reamers, wire drawing dies, saw blades, etc.

Range. This standard is applicable to hot-rolled, forged, cold-drawn and other high-speed tool steel rods (round steel, square steel, flat steel, hexagonal steel, etc.), wire rod and silver bright high-speed steel bar with a cross-sectional size (diameter, side length, thickness or distance to the opposite side) of no more than 250mm, and its chemical composition is also applicable to ingots and billets.

Dimensions, shape and permissible deviations:

The size, shape and allowable deviation of hot-rolled steel rod shall comply with the relevant provisions of GB T 702.

The size, shape and allowable deviation of the wire rod shall comply with the relevant provisions of GB T 14981.

The size, shape and allowable deviation of forged round bars, square bars and flat bars shall comply with the relevant provisions of GB T 908.

The size, shape and allowable deviation of cold-drawn round, square steel and hexagonal steel shall be in accordance with the provisions of GB T 905 respectively.

The size, shape and allowable deviation of silver bright steel shall comply with the provisions of GB T 3207.

The size, shape and allowable deviation of the steel rod are specified in the contract. According to the requirements of the buyer, after negotiation between the two parties and indicated in the contract, the steel rod with special dimensional accuracy requirements can be used.

W18Cr4V chemical element composition content (%)

W18CR4V Mechanical Properties.

When the tempering temperature is 550 570 °C, tempering 2 times, each time 1h; When the tempering temperature is 540 560 °C, tempering 2 times, 2h each time; When the tempering temperature is 530 550 °C, tempering 3 times, 2h each time;

The hardness of annealing + cold high tensile state is allowed to increase by 50HBW compared with the annealed state index

Specimen heat treatment system:

The preheating temperature is 800 900 °C, the quenching temperature of the salt bath furnace is 1250 1270 °C, the quenching temperature of the chamber furnace is 1260 1280 °C, and the oil or salt bath is cold; Tempering temperature 550-570 °C

W18CR4V represents a tungsten-based high-speed tool steel with an average tungsten content of 18%, a chromium content of 4% and vanadium. The steel grade of high-speed tool steel is generally not marked with carbon content, but only a few percent of the average content of various alloying elements.

W18Cr4V carbon content, tungsten content, chromium content, vanadium content, silicon content is less than, manganese content is less than, molybdenum content is less than.

In steel, carbon forms carbides mainly with chromium, tungsten, molybdenum, and vanadium (carbide-forming elements) to improve hardness, wear resistance, and red hardness. Tungsten is the main element that improves red hardness, and it forms carbides in steel. When heated, a part of the carbide dissolves into the austenite, and after quenching, it forms martensite with high tempering stability and a large amount of tungsten and other alloying elements.

During tempering, a part of tungsten is dispersed and precipitated in the form of carbide, resulting in secondary hardening. When heated, the undissolved carbides act as a means of preventing the growth of austenite grains. Vanadium can significantly improve the red hardness, hardness and wear resistance of high-speed steel.

When the carbide formed by vanadium is heated, it partially dissolves into the austenite, and is dispersed and precipitated with fine particles during tempering, resulting in secondary hardening and improving the red and hard destructive properties of steel. Chromium in high-speed steel mainly increases its hardenability, and at the same time can also improve the steel's oxidation resistance, decarburization and corrosion resistance. Cobalt can also significantly improve the red hardness and hardness of steel.

Hello, W18CR4V is a kind of high-speed steel that is commonly used in the manufacture of tools such as cutting tools and drills. If you need to replace W18Cr4V, you can consider the following materials:1

Tungsten Carbide: Tungsten carbide has extremely high hardness and wear resistance, and can be used as an alternative to W18CR4V in cutting tools and drill bits. 2.

M2 steel: M2 steel is a kind of high-speed steel that has similar sexual high energy to W18Cr4V, which can replace W18Cr4V for making tools such as cutting tools and drills. 3.

Cast iron: Cast iron has good wear resistance and cutting performance, which can replace W18CR4V for manufacturing some low-requirement cutting tools. 4.

Ceramic: Ceramics have high hardness and wear resistance, which can replace W18CR4V for making some special cutting tools, such as cutting glass, etc. It is necessary to select the appropriate material to replace W18CR4V according to the specific application scenarios and requirements to achieve the best performance and effect.