Steel & Aluminum Grades Chart for 7 Countries

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Steel is one of the most important materials used in various industries, ranging from construction and manufacturing to transportation and energy.

However, not all steel is created equal. There are various grades and classifications of steel, each with its own unique properties and characteristics.

Understanding the different types of steel can be overwhelming, as it involves a combination of letters, chemical symbols, and numerical codes. But fear not, because in this article, we will break down the complex world of steel grades and provide a comprehensive guide to help you understand the classification system.

We will explore the various criteria used to classify steel, such as chemical composition, smelting method, processing technology, product shape, deoxidation methods, microstructure, strength level, and heat treatment process.

We will also highlight some of the most common steel grades used in different industries, such as mild steel, medium carbon steel, and high carbon steel.

By the end of this article, you will have a better understanding of the steel grades chart and be able to identify the right type of steel for your specific needs.

So, let’s dive into the fascinating world of steel grades and discover what makes this material so essential to our modern world.

What Is Steel Grade?

The classification of steel products is typically represented by a combination of letters, chemical element symbols, and Arabic numerals to denote its name, purpose, characteristics, and production process.

This system has been developed over many years by various national standardization organizations, such as the European EN standards, American ASTM standards and AISI standards, Japanese JIS standards, Chinese GB standards, and international ISO standards.

Steel is generally classified based on the following criteria:

  • Chemical composition: including carbon steel, low alloy steel, and stainless steel
  • Smelting method: including open hearth steel, converter steel, and electric furnace steel
  • Processing technology: including hot rolled steel and cold rolled steel
  • Product shape: such as thick plates, thin plates, strips, pipes, and profiles
  • Deoxidation methods: including killed steel, semi-killed steel, and boiling steel
  • Microstructure: including ferritic steel, pearlitic steel, and martensitic steel
  • Strength level: for example, the tensile strength of grade C in the ASTM A420 standard ranges from 515 to 655 MPa
  • Heat treatment process: including annealing, quenching, tempering, and thermomechanical processing.

Steel is often categorized based on its carbon content into the following three groups:

  • Mild steel, including AISI 1005 to AISI 1026, IF, HSLA, TRIP, and TWIN steel
  • Medium carbon steel, such as AISI 1029 to AISI 1053
  • High carbon steel, such as AISI 1055 to AISI 1095.

Moreover, based on the European standard classification, steel can be further divided into the following categories:

  • Non-alloy steel, such as ENDC01-DC06; S235; S275
  • Alloy steel, such as 2CrMo4 and 25CrMo4
  • Stainless steel
  • Tool steel, such as EN1545; AISI/SAE W110; EN 1.2436, AISI/SAE D6
  • Plate and strip
  • Electrical steel plates and strips, such as EN0890 and EN 1.0803.

It’s worth noting that sometimes, special steel grades may have different characteristics due to variations in standards.

For instance, 34CrMo4 is defined by both DIN and EN. The EN standard includes six subgroup specifications, while the DIN standard has different specifications.

These steel specifications outline changes in tensile properties that result from various thermomechanical treatments.

Steel Grades Chart of 7 Countries

Grade Chart of Carbon Structural Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Quality Carbon Structural Steel08F08КП1006040A04S09CK C10
881008045M10S9CK C10
10F 1010040A10 XC10 
101010
101
012		045M10S10CXC10C10
CK10
15151015095M15S15CXC12C15
CK15
20201020050A20S20CXC18C22
CK22
25251025 S25C CK25
30301030060A30S30CXC32 
35351035060A35S35CXC38TSC35
CK35
40401040080A40S40CXC38H1 
45451045080M46S45CXC45C45
CK45
50501050060A52S50CXC48TSCK53
55551055070M55S55CXC55 
60601060080A62S58CXC55C60
CK60
15Mn15Г10
161
115		080A17SB46XC1214Mn4
20Mn20Г10
211
022		080A20 XC18 
30Mn30Г10
301
033		080A32S30CXC32 
40Mn40Г10
361
040		080A40S40C40M540Mn4
45Mn45Г10
431
045		080A47S45C  
50Mn50Г10
501
052		030A52S53CXC48 
   080M50   

Grade Chart of Alloy Structure Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Alloy Structure Steel20Mn220Г213
201
321		150M19SMn420 20Mn5
30Mn230Г21330150M28SMn433H32M530Mn5
35Mn235Г21335150M36SMn438
(H)		35M536Mn5
40Mn240Г21340 SMn44340M5 
45Mn245Г21345 SMn443 46Mn7
50Mn250Г2   ~55M5 
20MnV     20MnV6
35SiMn35CГ En46  37MnSi5
42SiMn35CГ En46  46MnSi4
40B TS14B35    
45B 50B46H    
40MnB 50B40    
45MnB 50B44    
15Cr15X5115523M15SCr415
(H)		12C315Cr3
20Cr20X5120527A19SCr420H18C320Cr4
30Cr30X5130530A30SCr430 28Cr4
35Cr35X5132530A36SCr430
(H)		32C434Cr4
40Cr40X5140520M40SCr44042C441Cr4
45Cr45X51
455
147		534A99SCr44545C4 
38CrSi38XC     
12CrMo12XM 620CR.B 12CD413CrMo44
15CrMo15XMA-387Cr . B1653STC4212CD416CrMo44
    STT42  
    STB42  
20CrMo20XM41
194
118		CDS12SCT4218CD420CrMo44
   CDS110STT42  
    STB42  
25CrMo 4125En20A 25CD425CrMo4
30CrMo30XM41301717COS110SCM42030CD4 
42CrMo 4140708A42 42CD442CrMo4
   708M40   
35CrMo35XM4135708A37SCM335CD434CrMo4
12CrMoV12XMΦ     
12Cr1MoV12X1MΦ    13CrMoV42
25Cr2Mo1VA25X2M1ΦA     
20CrV20XΦ6120   22CrV4
40CrV40XΦA6140   42CrV6
50CrVA50XΦA6150735A30SUP1050CV450CrV4
15CrMn15XГ,18XГ     
20CrMn20XГCA5152527A60SUP9  
30CrMnSiA30XГCA     
40CrNi40XH3140H640M40SNC236 40NiCr6
20CrNi3A20XH3A3316  20NC1120NiCr14
30CrNi3A30XH3A3325653M31SNC631H 28NiCr10
  3330 SNC631  
20MnMoB 80B20    
38CrMoAlA38XMIOA 905M39SACM64540CAD6.1241CrAlMo07
40CrNiMoA40XHMA4340871M40SNCM439 40NiCrMo22

Grade Chart of Spring Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Spring Steel60601060080A62S58CXC55C60
8585C1085080A86SUP3  
  1084    
65Mn65Г1566    
55Si2Mn55C2Г9255250A53SUP655S655Si7
60Si2MnA60C2ГA9260250A61SUP761S765Si7
  9260H    
50CrVA50XΦA6150735A50SUP1050CV450CrV4

Grade Chart of Roller Bearing Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Roller Bearing SteelGCr9ШX9E51100 SUJ1100C5105Cr4
  51100    
GCr9SiMn   SUJ3  
GCr15ШX15E52100534A99SUJ2100C6100Cr6
  52100    
GCr15SiMnШX15CГ    100CrMn6

Grade Chart of Free Cutting Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Free Cutting SteelY12A12C1109 SUM12  
Y15 B1113220M07SUM22 10S20
Y20A20C1120 SUM3220F222S20
Y30A30C1130 SUM42 35S20
Y40MnA40ГC1144225M36 45MF240S20

Grade Chart of Wear Resisting Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Wear Resisting SteelZGMn13116Г13Ю  SCMnH11Z120M12X120Mn12

Grade Chart of Carbon tool Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Carbon Stool SteelT7y7W1-7 SK7
SK6		 C70W1
T8y8  SK6
SK5		  
T8Ay8AW1-0.8C  1104Y175C80W1
T8Mny8Г  SK5  
T10y10W1-1.0CD1SK3  
T12y12W1-1.2CD1SK2Y2 120C125W
T12Ay12AW1-1.2C  XC 120C125W2
T13y13  SK1Y2 140C135W

Grade Chart of High-Speed Tool Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
High-Speed Tool SteelW18Cr4VP18T1BT1SKH2Z80WCVS18-0-1
     2018-4-1 
W6Mo5Cr4V2P6M3N2BM2SKH9Z85WDCVS6-5-2
     06-05-04-02 
W18Cr4VCo5P18K5Φ2T4BT4SKH3Z80WKCVS18-1-2-5
     18-05-04-01 
W2Mo9Cr4VCo8 M42BM42 Z110DKCWVS2-10-1-8
     09-08-04-02-01 

Grade Chart of Alloy Tool Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Alloy Tool Steel8MnSi     C75W3
9SiCr9XC BH21  90CrSi5
Cr2XL3   100Cr6
Cr0613XW5 SKS8 140Cr3
9Cr29XL   100Cr6
WB1F1BF1SK21 120W4
Cr12X12D3BD3SKD1Z200C12X210Cr12
Cr12MoVX12MD2BD2SKD11Z200C12X165CrMoV46
9Mn2V9Г2Φ2  80M8090MnV8
9CrWMn9XBГ1 SKS380M8 
CrWMnXBГ7 SKS31105WC13105WCr6
3Cr2W8V3X2B8ΦH21BH21SKD5X30WC9VX30WCrV93
5CrMnMo5XГM  SKT5 40CrMnMo7
5CrNiMo5XHML6 SKT455NCDV755NiCrMoV6
4Cr5MoSiV4X5MΦCH11BH11SKD61Z38CDV5X38CrMoV51
4CrW2Si4XB2C  SKS4140WCDS35-1235WCrV7
5CrW2Si5XB2CS1BSi  45WCrV7

Grade Chart of Heat Resistant Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Heat Resistant Steel2Cr23Ni1320X23H12309309S24SUH309Z15CN24.13 
  S30900    
2Cr25Ni2120X25H20C2310310S24SUH310Z12CN25.20CrNi2520
  S31000    
0Cr25Ni20 310S SUS310S  
  S31008    
0Cr17Ni12Mo208X17H13M2T316316S16SUS316Z6CND17.12X5CrNiMo1810
  S31600    
0Cr18Ni11Nb08X18H12E347347S17SUS347Z6CNNb18.10X10CrNiNb189
  S34700    
1Cr13Mo   SUS410J1  
1Cr17Ni214X17H2431431S29SUS431Z15CN16-02X22CrNi17
  S43100    
0Cr17Ni7Al09X17H7Ю631 SUS631Z8CNA17.7X7CrNiAl177
  S17700    

Grade Chart of Stainless Steel

 Chinaformer
Soviet
Union		USAUKJapanFranceGermany
Steel GradesGBГОСТASTMBSJISNFDIN
Stainless Steel1Cr18Ni912X18H9302302S25SUS302Z10CN18.09X12CrNi188
  S30200    
Y1Cr18Ni9 303303S21SUS303Z10CNF18.09X12CrNiS188
  S30300    
0Cr19Ni908X18H10304304S15SUS304Z6CN18.09X5CrNi189
  S30400    
00Cr19Ni1103X18H11304L304S12SUS304LZ2CN18.09X2CrNi189
  S30403    
0Cr18Ni11Ti08X18H10T321321S12SUS321Z6CNT18.10X10CrNiTi189
  S32100321S20   
0Cr13Al 405405S17SUS405Z6CA13X7CrAl13
  S40500    
1Cr1712X17430430S15SUS430Z8C17X8Cr17
  S43000    
1Cr1312X13410410S21SUS410Z12C13X10Cr13
  S41000    
2Cr1320X13420420S37SUS420J1Z20C13X20Cr13
  S42000    
3Cr1330X13 420S45SUS420J2  
7Cr17 440A SUS440A  
  S44002    
0Cr17Ni7Al09X17H7Ю631 SUS631Z8CNA17.7X7CrNiAl177
  S17700    

Aluminum Grades Chart of 7 Countries

 ChinaUSAUKJapanFranceGermanyformer
Soviet Union
CategoryGBASTMBSJISNFDINГОСТ
Commercially Pure Aluminium1A991199   A199.99RA99
1A97    A199.98RA97
1A95     A95
1A80 1080
(1A)		10801080AA199.90A8
1A5010501050
(1B)		10501050AA199.50A5
       
Antirust Aluminium5A025052NS450525052A1Mg2.5Amg
5A03 NS5   AMg3
5A055056NB65056 A1Mg5AMg5V
5A305456NG6155565957  
       
Duralumin2A012036 21172117AlCu2.5Mg0.5D18
2A11 HF1520172017SAlCuMg1D1
2A122124 20242024AlCuMg2D16AVTV
2B162319     
       
Forging Aluminium2A80  2N01  AK4
2A902218 2018  AK2
2A142014 20142014AlCuSiMnAK8
       
Ultraduralumin7A097175 70757075AlZnMgCu1.5V95P
       
Casting Aluminium AlloyZAlSi7Mn356.2LM25AC4C G-AlSi7Mg 
ZAlSi12413.2LM6AC3AA-S12-Y4G-Al12AL2
ZAlSi5Cu1Mg355.2    AL5
ZAlSi2Cu2Mg1413 AC8A G-Al12
(Cu)		 
ZAlCu5Mn     AL19
ZAlCu5MnCdVA201     
ZAlMg10520.2LM10 AG11G-AlMg10AL8
ZAlMg5Si    G-AlMg5SiAL13

For your ease of reference, we have also provided you with an .xls version of the steel grades chart and aluminum grades chart, which is more convenient than the PDF version.

Download the Steel & Aluminum Grades Chart of 7 Countries

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