A complete list of the most popular die steel grad

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All kinds of mold steel grades

according to the provisions of "steel product grade representation method" GB, China's steel product grades are generally expressed by the combination of Chinese Pinyin alphabet, international chemical element symbols and Arabic numerals

1 specific grades of carbon structural steel

q195-q195f, q195b, Q195

q215-q215af, q215ab, q215a, Q215BF, q215bb

q235-q235af, q235ab, Q235A, q235bf, q235bb, Q235B, Q235C, q235d

q255-q255a, q255b


.The above brands should be accurately identified and used in the supply work

2 low alloy high strength structural steel

gb/t new brand representation method low alloy high strength structural steel is divided into general steel and special steel. The new brand representation method is the same as gb/t low alloy high strength structural steel and GB carbon structural steel, and forms a series of engineering steel with the brand of carbon structural steel. Low alloy high strength structural steel is divided into killed steel and special killed steel according to deoxidation method, but there is no symbol indicating deoxidation method in the brand

1) general low alloy high strength structural steel brand composition

q295-q295a, q295b

q345-q345a, Q345B, Q345C, Q345D, Q345E

q390-q390a, q390b, q390c, q390d, Q390E

q420-q420a, q420b, Q420C, q420d, Q420E

q460-q460c, Q460D, Q460E

2) special low alloy high strength structural steel brand

special low alloy high strength structural steel generally adopts the Pinyin letter Q representing the yield point The value of yield point (in MPA) is indicated by the first letter of Pinyin of product use at the end. For example, the steel grade of pressure vessel is Q345R; Welded gas cylinders are represented by steel grades q295hp; The steel grade of boiler is q390g; The steel grades of bridges are q420q, etc

3) the basic grades of high-quality carbon structural steel are:

08f, 10F, 15F, 08, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 15mn, 20Mn, 25MN, 30mn, 35MN, 40Mn, 45MN, 50Mn, 60Mn, 65Mn, 70MN, a total of 31

4 free cutting structural steel

free cutting structural steel is divided into sulfur free cutting steel, sulfur phosphorus free cutting steel, lead free cutting steel, calcium free cutting steel, sulfur carbon manganese free cutting steel, etc. The brand is indicated by specified symbols and Arabic numerals. That is, the first letter of Yi's Chinese Pinyin begins with y, followed by two Arabic numerals to express the 10000 fraction of carbon content

specific brands include: Y12, y12pb, Y15, y15pb, Y20, Y30, Y35, y40mn, y45ca, a total of 9 brands

5 alloy structural steel

its brand is expressed by the carbon content of the steel, the type and quantity of alloy elements contained. This representation (compilation) method can directly see the approximate chemical composition and quality grade of steel from the brand, which is more intuitive and concise

specific brands are:

20mn2, 30Mn2, 35Mn2, 40Mn2, 45Mn2, 50mn2, 20mnv, 27mnsi, 35mnsi, 42mnsi, 20SiMn 2Mo, 25simn2mov, 37simn2mov, 40b, 45B, 50B, 40MnB, 45mnb, 20MnMoB, 15mnvb, 20mnv B, 40mnvb, 20mntibe, 25mntibre, 15Cr, 15cra, 20Cr, 30Cr, 35Cr, 40Cr, 45Cr, and 50Cr, 38crsi, 12CrMo, 15CrMo, 20CrMo, 30CrMo, 30crmoa, 35CrMo, 42CrMo, 12CrMoV, 35CrMo V 12Cr1MoV, 25Cr2MoVA, 25cr2mo1va, 38CrMoAl, 40crv, 50CrVA, 15crmn, 20crmn, 40C Rmn, 20CrMnSi, 25crmnsi, 30CrMnSi, 30CrMnSiA, 35CrMnSiA, 20CrMnMo, 40CrMnMo, 20CrMnTi, 40crmnti, 20crni, 40crni, 45CrNi, 50crni, 12crni2, 12crni3, 20crni3, 30CrNi3, 37CrNi3, 12cr2ni4, etc.There are 77 20cr2ni4, 20CrNiMo, 40CrNiMoA, 18crnimnmoa, 45CrNi Mova, 18Cr2Ni4WA and 25Cr2Ni4WA

6 spring steel

spring steel is a kind of steel used to make springs or other elastic components. It is divided into high-quality carbon spring steel and alloy spring steel

there are 17 specific brands: 65, 70, 85, 65Mn, 55si2mn, 55si2mnb, 55SiMnVB, 60Si2Mn, 60Si2MnA, 60 su2cra, 60Si2CrVA, 55CrMnA, 60CrMnA, 60crmnmoa, 50CrVA, 60crmnba, 30W4Cr2VA. 7 ensure hardenability of structural steel

its brand is represented by adding H (the first letter of hardenability in English) after the brand of high-quality carbon structural steel and expensive steel of alloy structural fatigue testing machine. There are 15 brands: 45h, 20crh, 40crh, 45crh, 40MnBH, 45mnbh, 20mnmobh, 20m nvbh, 22mnvbh, 20mntibh, 20crmnmoh, 20CrMnTiH, 20crni3h, 12cr2ni4h, 20crnimoh

8 weathering steel for welded structures

weathering steel is a low-alloy high-strength structural steel for atmospheric corrosion resistance. According to the provisions of GB "steel product brand representation", its brand representation method is the same as that of low-alloy high-strength structural steel, but the Chinese phonetic alphabet NH with the word weathering is added at the end of the brand, such as q340nh

specific brands include: 16cucr, 12mncucr, 15mncucr, 15mncucr QT (QT is the abbreviation of English quenching & tempering, which means quenching and tempering heat treatment)

9 the designation of high weather resistant structural steel is the same as that of alloy structural steel. The specific designations include 09crpcrni-a, 09cupcrni-b and 09cup

10 rolling bearing steel

rolling bearing steel is abbreviated as bearing steel or ball steel, which is used to manufacture rings and rolling elements of various rolling bearings

the first letter of Chinese Pinyin g rolled at the head of the brand indicates bearing steel

specific brands include: gcr6, gcr9, gcr9simn, GCr15, GCr15SiMn, a total of 5 brands

11 chromium free bearing steel

grades are expressed in the same way as chromium bearing steel, including 6 grades: gsimnv, gsimnvxt, gsimnmov, gsimnmovxt, gmnm ov, gmnmovxt

12 carburized bearing steel

specific grades include: G20 CrMo, G20 CrNiMo, G20 crni2mo, G20 cr2ni4, g10crni3mo, G20 cr2mn2mo, etc

13 carbon tool steel

the brand of carbon tool steel begins with the first letter of the Chinese phonetic alphabet of carbon, followed by one or two digits to represent the thousands of carbon content. For carbon tool steel with high manganese content, the element symbol Mn of manganese is marked after the number, and a is added at the end of the grade of high-quality steel

there are 8 basic brands: T7, T8, t8mn, T9, T10, T11, T12, T13

14 alloy tool steel

alloy tool steel is abbreviated as alloy steel. It is a kind of steel formed by adding alloy elements on the basis of carbon tool steel

specific brands are: 9SiCr, 8mnsi, cr06, CR2, 9Cr2, W, 4crw2si, 5CrW2Si, 6CrW2Si, Cr12, c12mo1v1, Cr12MoV, Cr5Mo1V, 9mn2v, CrWMn, 9crwmn, Cr4W2MoV, 6cr4w3mo2vnb, 6w6m o5cr4v, 5CrMnMo, which can also be divided into carbon fiber reinforced composites (CFRP) and carbon fiber reinforced thermoplastic composites (CFRTP), 5CrNiMo, 3crmno.2w8v, 5cr4mo3simnva1, 3cr3mo3w2v, 5cr4w5mo2v, 8cr3, 4crmnsimov, 4cr3mo3siv There are 33 brands including 4Cr5MoSiV, 4Cr5MoSiV1, 4cr5w2vsi, 7mn15cr2a13v2wmo and 3C r2mo

15 high speed tool steel

high speed tool steel is referred to as high-speed engineering steel or high-speed steel, commonly known as Feng Steel or wind steel. It is a kind of high carbon and high alloy tool steel suitable for high-speed cutting

specific brands include: W18Cr4V, w18cr4vco5, w18cr4v2co8, w12cr4v5co5, W6Mo5Cr4V2, cw6mo5 Cr4V2, w6mo5cr4v3, cw6mo5cr4v3, w2mo9cr4v2, w6mo5cr4v2co5, w7mo4cr4v2co5, w2mo9c r4vco8, W9Mo3Cr4V, W6Mo5Cr4V2Al, a total of 14 brands

16 stainless steel

stainless steel is the abbreviation of stainless acid resistant steel, including stainless steel and acid resistant steel

chromium (CR) is the most basic element for stainless steel to obtain corrosion resistance. Generally, the chromium content is more than 13%, and some are as high as 30%. Nickel (Ni) is also the main alloy element of stainless steel, with a content of about 20%

specific brands include: 1Cr17Mn6Ni5N, 1Cr18Mn8Ni5N, 1cr18mn10ni5mo3n, 1cr17ni7, 1Cr18Ni9, Y1 Cr18Ni9, Y1 cr18ni9se, 0Cr18Ni9, 00Cr19Ni10, 0Cr19Ni9N, 0cr19ni19nbn, 00cr18ni10n, 1cr18ni12, 0cr23ni13, 0Cr25Ni20, 0Cr17Ni12Mo2, Cr18Ni12Mo2Ti, 0Cr18Ni12Mo2Ti, 00cr17ni14mo 2. 0cr17ni12mo2n, 00cr17ni13mo2n 0Cr18Ni12Mo2Cu2、00Cr18Ni14Mo2Cu2、0Cr19Ni13Mo3、00Cr19Ni13Mo3、1Cr18Ni12Mo3Ti、0Cr18Ni12Mo3Ti、0Cr18Ni16Mo5、1Cr 18Ni9Ti、0Cr18Ni10Ti、0Cr18Ni11Nb、0Cr18Ni9Cu3、0Cr18Ni13Si4、0Cr26Ni5Mo2、1Cr18 Ni11Si4AlTi、00Cr18Ni5Mo3Si2、0Cr13Al、00Cr12、1Cr17、Y1Cr17、1Cr17Mo、00Cr30Mo2、00Cr27Mo、1Cr12、1Cr13、0Cr13、3Cr13、Y3Cr13、3Cr13Mo、 4Cr13, 1Cr17Ni2, 7cr17, 8cr17, 9Cr18, 11cr17, y11cr17, 9Cr18Mo, 9cr18mov, 0Cr17Ni4Cu4Nb, 0cr17ni7al, 0 cr15ni7mo2al, 0Cr17Ni4Cu4Nb, 0cr17ni7al, 0Cr15Ni7Mo2Al, a total of 64 brands

17 heat resistant steel

heat resistant steel refers to alloy steel that has good chemical stability and high strength at high temperature and can better adapt to high temperature conditions. The designation of heat-resistant steel is the same as that of stainless steel

specific brands are: 5Cr21Mn9Ni4N, 2cr21ni12n, 2cr23ni13, 2cr23ni20, 1cr15ni35, 0cr15 Ni25 ti2moalvb, 0Cr18Ni9, 0cr23ni13, 0Cr25Ni20, 0Cr17Ni12Mo2, 4Cr14Ni14W2Mo, 3cr18mn12si2n, 2cr20mn9ni2si2n, 0cr19ni13mo3, 1Cr18Ni9Ti, 0Cr18Ni10Ti, 0cr18ni11nb, 0cr18ni13si4, etc.1cr20ni14si2, 1Cr25Ni20Si2, 2Cr25N, 0Cr13Al, 00Cr12 The experimental machine (UTM) has 40 brands, including 1Cr17, 1cr5 Mo, 4Cr9Si2, 4Cr10Si2Mo, 8Cr20Si2Ni, 1Cr11MoV, 1cr12movnbn, 1cr12wmov, 2Cr12NiMoWV, 1Cr13, 1cr13mo, 2Cr13, 1Cr17Ni2, 1Cr11Ni2W2MoV, 0Cr17Ni4Cu4Nb, 0cr1 7ni7al, through conditioning at different speed levels

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