There are two systems of designating steel grades according to PN-EN standard:

  • alphanumeric system (PN-EN 10027-1)
  • numeric system (PN-EN 10027-2)

Each steel grade is given a symbol and numbe, which indentifies only one material.

In the case of alphanumeric stystem, letters designate characteristics of the steel grade, eg. application, mechanical properties, chemical composition. It enables to identify particular steel grades.

When it comes to numeric system, each steel grade has an assigned number with five digits, which can be used instead of steel symbols. Steel grade numbers are assigned by European Commision for Standardization.

The first digit in the number, "1", indicates that it is a steel. Two follwing digits indicate steel group, and two final digits indicate particular steel grade in the group. Steel group - steels are divided according to chemical composition, mechanical, physical and technological properties, and their application.:

  • quality unalloyed steels: group numbers from 01 to 07 and 91 to 97;
  • special unalloyed steels: from 10 to 18;
  • corrosion and heat resistant alloy steels: from 40 to 49;
  • alloy machine and compression tank steel: from 50 to 89.

 

Comparison of international designations of steel:

Standards France UK Sweden Spain USA
PN-EN 10027-1 PN-EN 10027-2 DIN
Free machining steel
A10X 1.0718 96MnPB28 S250Pb 1914 F.2112-11SMnPb28 12L13
A11 1.0721 10S20 10F1 210M15 F.2121 -10S20 1108
1.0722 10SPb20 10PbF2 F.2122-10SPb20 11L08
1.0723 15S20 210A15 1922 F.210F
1.0736 9SMn36 S300 240M07EN 1B F.2113-12 SMn 35 1215
1.0737 9MnPb36 S300Pb 1926 F.2114-12SMnPb35 12L14
Low-carbon steel
1.0301 C10 AF34C10/XC10 045M10 1010
1.0401 C15 AF37C12/XC18 080M15;040A15 1350 F.111 1015
1.0402 C22 AF42C20/XC25 050A20/055M15-EN2C 1450 F.112 1020
1.0406 C25 AF50C30 070M26 F.221 1025
1.0711 9S20 220M07 1212
1.0715 9SMn28 S250 230M07 1912 F.2111-11SMn28 1213
1.1121 Ck10 XC10 040A10 1265 F.1510-C 10 k 1010
1.1133 20Mn5 20M5 120M19 F.1515-20Mn6 1022/1518
1.1141 Ck15 XC15/C15E 080M15 EN32C 1370 F.1511 -C 16 k 1015
1.1151 Ck22 XC25/C22E 050A20 F.1120-C25k 10201023
1.1158 Ck25 XC25/C25E 070M26 F.1120-C 25 k 1025
1.5622 14Ni6 15N6/15Ni6 F.2641 -15 Ni 6 A350-LF5
1.5752 14NiCr14 12NC15 655M13/A12 EN 36A 3310/9314
1.7015 15Cr3 12C3 523M15 5015
Medium-carbon steel
1.0501 C35 AF55C35/XC38 060A35 T550 F.113 1035
1.0503 C45 AF65C45/C45 080M46 1650 F.114 1045
1.0511 C40 AF60C40/C40 F.114.A 1040
1.0535 C55 C55 070M55 1655 1055
1.0601 C60 AF70C55/C60 080A62-EN 43D F.115 1060
A35 1.0726 35S20 35MF6 212M36 EN8M 1957 F.210G 1140
A45 1.0727 45S20 45MF4 212M44 1973 1146
50S2 1.0903 51Si7 51S7 250A53 EN 45 2090 F.1450- 50 Si 7 9255
55S2 1.0904 55Si7 55S7 250A53 2085 F.1440- 56 Si 7 9255
60SG 1.0909 60Si7 60S7 250A58 F.1441 -60 Si 7 9260
1.0961 60SiCr7 60SC7 250A61 F.1442-60SiCR8 9262
1.1165 30Mn5 35M5/30Mn5 120M36/150M28 F.1203-36Mn5 1330
1.1166 34Mn5 35M5/34Mn5 F.8211 -30Mn5 1536
1.1167 36Mn5 40M5/36Mn5 150M36 EN 15 2120 F.1203-36Mn5 1335
1.117 28Mn6 20M5/28Mn6 150M28 EN 14A 1330
1.118 Cm35 XC32/C35R 080M36 1572 F.1135-C 35 K-1 1035
1.1186 Ck40 XC42H1/C40E 060A40/080A40 1040
1.1191 Ck45 XC42H1/C45/XC45 080M46/060A47 1672 F.1140-C45k 1045
1.1201 Cm45 XC42H1/C45R 080M46 1660 F.1145-C45k 1045
1.1203 Ck55 XC55H1/C55E 060A57/070M55 F.1150-C 55 k 1055
1.1206 Ck50 XC48H1/C50E 080M50 1050
1.1213 Cf53 XC48H1TS 060A52 1674 1050
1.1221 Ck60 XC60/C60E/2C60 060A62 1665/1678 F.511/F.512 1060
1.1231 Ck67 XC68 060A67 1770 1070
1.7003 38Cr2 38C2/38Cr5 38 Cr 3
Alloy steel
75 85 1.1248/1269 Ck75 XC75/C75E/XC90 060A78 1774/1778 F. 513/514/515 1080/1078/1086
1.1274 Ck101 XC 100 060A96 1870 1095
1.233 35CrMo4/47CrMo4 34CD4/35CrMo4/42CD4 708A37/708M40 2234/2244 4135/4142
1.571/.5711 36NiCr6/40NiCr6 35NC6 640A35/640M40 EN111A 3135/3140
1.5736 36NiCr10 30NC11 3435
20HNMA 20HNM 1.6523/43 21NiCrMo2 20NCD2 805M20/805A20 EN 362 2506 F.1522-20NiCrMo2 8620/8720
37HGNM 1.6546 40NiCrMo22 40NCD2 311-Type7 F.1204-40NiCrMo2 8740
1.6587 17CrNiMo8 18NCD6 820A16 F.1560-14NiCrMo13
1.6657 14NiCrMo134 16NCD13 832M13 F.1569-14NiCrMo 131
1.7006 46Cr2 42C2/46Cr2 5045/5046
1.703 28Cr4 530A30 5130
30H 1.7033 34Cr4 32C4/34Cr4 530A32 EN18B F.8221 -35Cr4/F.224 5132
38HA 1.7034 37Cr4 38C4/37Cr4 530A36 F.1201 -38 Cr 4 5135
40H 1.7035 41Cr4 42C4/41Cr4 530M40/530A40 EN 18 F.1202-42O4 5140
1.7045 42Cr4 42C4TS 530A40 2245 F.1202-42Cr4 5140
16HG 1.7131 16MnCr5 16MC5 527M17 2511 F.1515-16MnCr5 5115
18HGT 20HG 1.7147 20MnCr5 20MC5 F.150.D 5120
1.7176 55Cr3 55C3 527A60 EN 48 2253 F.1431 -55Cr3 5155
25HM 1.7218 25CrMo4 25CD4/25CrMo4 1717CDS110 2225 F.8330-AM25CrMo4 4130
1.722 34CrMo4 35CD4/34CrMo4 708A37 EN 19B 2234 F.8231 -AM34CrMo4 4135/4137
40HM 1.7225 42CrMo4 42CD4/42CrMo4 708M40 EN 19A 2244 F.8232 - 42 CrMo4 4140/4142
1.7228 50CrMo4 50CrMo4 708A47 4150
50HF 1.8159 50CrV4 50CV4/51CrV4 735A50 EN 47 2230 F.1430-51 CrV4 6150
High strength alloy steel
1.8507 34CrAIMo5 30CAD6.12 905M31 F.1741 -34CrAIMo5 A355CI.D
1.8509 41CrAIMo7 40CAD6.12 905M39 EN41B 2940 F.1740-41 CrAIMo7 A355CI.A
1.5755 31NiCr14 18NC13 653M31 F.123
36HNM 1.6511 36CrNIMo4 40NCD3/36CrNiMo4 816M40 EN 110 F.1280-35NiCrMo4 9840
1.6562 40NiCrMo73 817M40 4340
1.658 30CrNiMo8 30CND8/30CrNiMo8 823M30
34HNM 1.6582 34CrNiMo8 35NCD6/34CrNiMo6 817M40 EN 24 2541 F.1272-40NiCrMo7 4340
1.6746 32NiCrMo145 35NCD14 830M31 F.1262-32NiCrMo 12
1.6747 30NiCrMo166 35NCD16 835M30 F.1260-32 NiCrMo 16
1.8515 31CrMoV139 30CD12 722M24 EN40B 2240 F.1712-31 CrMo12
1.8523 39CrMoV139 897M39 EN40C
Machine steel
St3V St3VY 1.0038 RSt37-2 E24-2NE/S235JRG2 4360-40C 1312 A570 (36)
St4VY 1.0044 St44-2 E28-2/S275JR 4360-43B 1412 A430B A570 (40)
1.005 St50-2 A50-2/E295 4360-50B 2172 A570 (50)
1.006/.007 St60-2/St70-2 A60-2/E335-A70-2/E360 4360-55E
St3W 1.0116 St37-3 E24-3;-4/S235J2G3 4360-40C/D-1449-37C 1313 A360 C;D A284/A573/A611
1.033 St12 DC01 1449-2/3/4CR AP00 A366/1012/A619
1.0333 St13 1449 2CR; 3CR AP02 1008
1.0338 St14 DC04 1449 1CR;2CR AP04 A620
St36K 1.0345 H I A37CP;AP/P235GH 1501 Gr. 161-360/400 1330 A 37 RC l;RA II A516Gr.65;-55
1.0347 RRSt13 DC03 3CR A619
St41K 1.0425 H II A42CP;AP/P265GH 161-400; 1430 A42 RC 1
1.0473 19Mn6 A52CP;AP/P335GH 2101/2102 A 47 RB II A537
1.0481 17Mn4 A48CP;AP/P295GH A 47 RC1; RA II A516(70)
1.0562 StE355 E355R/FP/S355N 2132 AE 355 KG;DD A633 (C)
1.057 St52-3 E36-3;E36-4/S355J2G3 4360-50B;50C;50D 2132 A510C;D
16M 1.5415 15Mo3 15D3/15M03 1501-240 2912 F.2601 -16 Mo 3 A204 (A)
1.5423 16Mo5 1503-245-420 F.2602-16Mo5 4520
1.5637 10NM4 12N14/12NJ14 1501-503-690 F.152 A350-LF3
1.5713 13NiCr6 10NC6 3115
1.5732 14NiCr10 14NC11 F.1540- 15 NiCr 11 3415
15HM 1.7335 13CrMo44 15CD3.05 620Gr.27;31 2216 F.2631 -14CrMo4 5 A182-F11;F12
1.7337 16CrMo44 15CD4.5 620Gr.27 2216 A387(12)
1.738 10CrMo910 12CD9.10/10CrMo9-10 622Gr.31;45 2218 TU.H A182F22
13HMF 1.7715 14MoV63 660/440 F.2621 -13MoCrV6
1.8902 StE420 E420RIFP/S420N 4360-55E AE 420 KG A633Gr.E
1.8905 StE460 E460RIFP/S460N AE 460 KG A633Gr.E
Heat resistant alloys
H16N36S2 1.4864 X12NiCrSi3616 ZI2NCS37.18 NA17 F.3313-X 12 CrNi 36-16 330
1.4865 G-X40NiCrSi3818 330C40
1.4876 X10NiCrAITi3320 Z8NC3221 NA15(H) F.3545-X9NiCr 33-21 B163
2.436 NiCu30Fe NU30 3072-76/NA13 4544/SB127/164
2.4375 NiCu30AI 3072-76/NA18/3146 4676
2.4602 NiCr17Mo17FeW NC 17 DWY 5388 C
2.463 NiCr20Ti NC20T HR5/203-4/703-B MH-05
2.4631 NiCr20TiAI NC 20 TA HR401HR601/736B MH-07
2.4634 NiCo20Cr15MoAITi NCKD 20 ATV HR 3/5007 MH-14
2.4636 NiCo15Cr15MoAITi NCKD 20 AT 687
2.465 NiCr20Co19MoTi NCK20D HR 10
2.4662 NiCrl 5MoTi Z8 NCDT 42 MH-16 5660C
2.4665 NiCr22Fe18Mo Ne 22 FeD HR 6/204 MH-03 5536E
2.4668 NiCr19Fe19NbMo NC 19FeNb HR8 MH-06
2.4669 NiCr16FeTi NC 15 Fe TNb HR505 5542G
2.467 G-NiCr13AI6MoNb NC 13 AD HC203 MH-31 5391A
2.4674 NiCo15Cr10MoAITi NK 15 CAT HC 204
2.4676 NiCo10W10Cr9AITi
2.4816 NiCr15Fe NC 15 Fe 3072-76 5540
2.4856 NiCr22Mo9Nb NC 22 FeDNB 5581
2.4858 NiCr21Mo NC 21 FeDU 3072-76
2.4973 NiCr19Co11MoTi NC 19KDT
2.4983 NiCr18Co18MoAlTi NCK 19 DAT 684
NiFe33Cr17Mo NW 11 AC HR 207/5047
Titanium alloys
3.7024/25 Ti99,8 T-35 TA.1 Ti-P01
3.7124 TiCu2 T-U2 TA.21-24/52-55/58 TJ-P11
3.7154 TiAI6Zr5MoO,5sio,2 T-A6ZD TA.43/44 Ti-P67
3.7184 TiAI4Mo4Sn2SiO,5 T-A4DE TA.45-51/57 Ti-P68
3.7034/35 Ti99,7 T-40 TA-2/34/5 Ti-P02 4941/42/51/4902
3.7064/65 Ti99,5 T-60 TA-6/7/8/9 Ti-P04 4901/21
3.7164/65 TiAI6V4 T-A6V TA. 10-1328/56 Ti-P63 491128/35/54/65/67
T50 DTD5023/5283 4900
Stainless steel
1.04.2010 X6Cr13 Z6013/Z6Cr13 403S17 2301 F.3110-X6Cr 13 403
1.4001 X7Cr14 Z3014 403S17 2301 F.8401-AM-X12 Cr 13 41 OS
0H13J 1.4002 X6CrAI13 Z6CA13/Z6CrAI13 405S17 2302 F.3111-X6CrAI13 405
1.4005 X12CrS13 Z12CF13/Z12CrS13 416S21 2380 F.3411-X12 CrS 13 416
1H13 1.4006 X10Cr13 Z12C13/Z12Cr13 410S21 ENEN56A 2302 F.3401-X12Cr 13 410/CA-15
H17 1.4016 X6Cr17 Z8C17/Z6Cr17 430S1 EN 60 2320 F.3113-X8Cr17 430
2H13 1.4021 X20Cr13 Z20C13/Z20Cr13 420S37 2303 F.3402-X20Cr 13 420
3H13 1.4028 X30Cr13 Z20C13/Z20Cr13 420S45 2304 F.3403-X30Cr 13
1.4031 X38Cr13 Z40C14/Z40Cr14 2304 F.3404-X40Cr 13
4H13 1.4034 X46Cr13 Z40C14/Z40Cr14 420S45 EN 56D F.3405-X46Cr13
2H17N2 1.4057 X20CrNi172 Z15CN16.02 431S29EN57 2321 F.3427-X15CrNi16 431
1.4104 X12CrMoS17 Z10CF17 2383 F.3117-X10CrS17 430F
1.4113 X6CrMo17 Z8CD17.01 434S17 2325 434
1.4125 X105CrMo17 Z100CD17 440C
0H18N9 1.4301 X5CrNi1810 Z6CN18.09 304S15 EN 58E 2332 F.3451-X5CrNi18-10 304/304H
1.4303 X5CrNi1812 Z8CN18.12 305S19 F.3513-X8CrNi.18-12 308;305
1.4305 X10CrNiS189 Z10CNF18.09 303S21 EN 58M 2346 F.3508-X10CrNiS 18-09 303
00H18N10 1.4306 G-X2CrNi189/1911 Z2CN18.10/Z3CN19.10m 304S12/S11/C12 2333/52 F.3503-X2CrNi19-10 304L
1.4308 G-X6CrNi189 Z6CN18.10M 304C15 2333 CF-8
1.431 X12CrNi177 Z12CN17.07 301S21 F.3517-X12CrNi17 07 301
1.4311 X2CrNiN1810 Z2CN18.10AZ 304S62 2371 304LN
1.4312 G-X10CrNi188 Z10CN18.9M 302C25
1.4313 G-X5CrNi134 Z4CND13.4M 425C11 2385 CA6-NM
1.4401 X5CrNiMo17122 Z6CND17.11 316S16/S31 EN 58J 2347 F.3543-X5CrNiMo17-12/03 316/316L
00H17N14M2 1.4404 X2CrNiMo17132 Z2CND18.13 316S11/S12 2348 F.3533-X2CrNiMo17 12-03 316L
1.4406 2CrNiMoN17122 Z2CND17.12Az 316S61 316LN
1.4408 G-X6CrNiMo1810 316C16 2343 F.8414-AM-X7 CrNiMo20 10 CF-8M
1.4429 X2CrNiMo17133 Z2CND17.13AZ 316S62 2375 316LN
1.4435 X2CrNiMo18143 Z2CND17.13 316S11/S12 2353 F.3533-Z 2 CrNiMo 17-12-03 316L
1.4436 X5CrNiMo17133 Z6CND17.12 316S16 2343 F.3534-X 6 CrNiMo 17-12-03 316
1.4438 X2CrNiMo18164 Z2CND19.15 317S12 2367 317L
1.4449 X5CrNiMo1713 317S16 317
1.4452 G-X5CrNiNb189 Z6NNb18.10M 347C17
1.446 X8CrNiMo275 2324 F.3309-X 8CrNiMo27-05 329
1.451 X6CrTi17 Z8CT17 F.3114-X8CrTi17 XM8/430Ti
1.4512 X5CrTi12 Z6CT12 409S19 409
0H18N10T
1H18N9T
1H18N10T		 1.4541 X6CrNiTi1810 Z6CNT18.10 321S12/S31 EN 58B 2337 F.3553-X 7 CrNiTi 18-11 321
1.4542 X5CrNiCuNb1714 Z6CNU17.04 630
1.4546 X5CrNiNb1810 347S17/S18 348
1.455 X6CrNiNb1810 Z6CNNb18.10 347S17/S31 EN 58F 2338 F.3552-X 7 CrNiNb 18-11 347
H17N13M2T
H18N10MT		 1.4571 X6CrNiMoTi17122 Z6CNDT17.12 320S31/S17EN58J 2350 F.3552-X 6 CrNiMoTM 7-12-03 316Ti
1.4573 X10CrNiMoTi1812 320S33 316Ti
1.458 X6CrNiMoNb17122 Z6CNDNb17.12/19.13 318S17 316Cb
H9S2 1.4718 X45CrSi93 Z45CS9 401S45EN52 F.3220-X 4 ScrSi 09-03 HNV3
H13JS 1.4724 X10CrAI13 Z10C13 403S17 F.13152-X 10 CrAI13
H10S2M 1.4731 X40CrSiMo102 Z40CSD10 F.3221-X40CrSiMo 10-02
H18JS 1.4742 X10CrAI18 Z10CAS18 430S15 F.3153-X10CrAI 18 430
1.4747 X80CrNiSi20 Z80CSN20.02 443S65 EN 59 F.3222-X 80CrSiNi20-02 HNV6
H24JS 1.4762 X10CrAI24 Z10CAS24 F.3154-X10CrAI24 446
H20N12S2 1.4828 X15CrNiS2012 Z15CNS20.12 309S24 309
1.4833 X7CrNi2314 Z15CN24.13 309S24 309S
1.4837 G-X40CrNiSi2520 309C30
H25N20S2 1.4841 X15CrNiSi2520 Z15CNS25.20 F.3310-X15 CrNiSi 25-20 314/310
1.4845 X12CrNi2521 Z12CN25.20 310S24 2361 F.331 31 OS
1.4848 G-X40CrNiSi2520 310C40 F.8452-AM-X 40 CrNi 25 20 HK
50H21G9N4 1.4871 X53CrMnNiN219 Z5CMN21.09 349S54 F.3217-X 53 CrMnln 21-09 EV8
1.4873 X45CrNiW189 Z35CNWS14.14 331S40 F.3211-X45CrNiSiW 28-09
1.4878 X12CrNiTi189 T6CNT18.12(B) 321S20 2337 F.3523-X 6CrNiTi 18 11 321
1.5662 X8Ni9 Z8N9 1501-509;510 F.2645 - X 8 Ni 09 A353
1.568 12NM9 Z18N5 2515
Tool steel
0.962 G-X260NiCr42 Grade2A A532IBNiCr-LC
0.9625 G-X330NiCr42 Grade2B A532IANiCr-HC
0.963 G-X300CrNiSi952 Grade2C;D;E A532IDNi-HiCr
0.964 G-X300CrMoNi152 Grade3A;B
0.9645 G-X260CrMoNi202 Grade3C A532IID20%CrMo-U
0.965 G-X260Cr27 Grade3D A532IIIA25%Cr
0.9655 G-X300CrMo271 Grade3E A532IIIA25%Cr
1.1525 C80W1 Y190;Y180 W108
1.1545 C105W1 Y1105 1880 W110
1.1645 C105W2 F.5117C102
1.1663 C125W Y2120 F.5123C120 W112
1.1673 C135W Y2140
1.175/.1625 C75W/C80W1 BW1A/BW1B F.1507C80 W1
1.2067 100Cr6 Y100C6 BL3 F.5230 100 Cr6 L3
1.208 X210Cr12 Z200C12 BD3 F.5212 X210 Cr12 D3
1.221 115CrV3 L2
1.2343 X38CrMoV51 Z38CDV5 BH11 F.5317X37CrMoV5 H11
1.2344 X40CrMoV51 Z40CDV5 BH13 2242 F.5318X40CrMoV5 H13
1.2363 X100CrMoV51 Z100CDV5 BA2 2260 F.5227X100CrMoV5 A2
1.2365 X32CrMoV33 32DCV28 BH10 F.5313CrMoV12 H10
1.2379 X155CrVMo121 Z160CDV12 BD2 D2
1.2419 105WCr6 105WC13 F.5233 105WCr5
1.2436 X210CrW12 2312 F.5213X210CrW12
1.251 100MnCrW4 B01 2140 F.5220 95 MnCrW5 01
1.2542 45WCrV7 BS1 2710 F.5241 45 WCrSi 8 S1
1.255 60WCrV7 55WC20
1.2567 X30WCrV53 Z32WCV5
1.2581 X30WCrV93 Z30WCV9 BH21 F.5323 X30 WCrV9 H21
1.2601 X165CrMoV12 2310 F.5211 X160CrMoV12
1.2606 X37CrMoW51 Z35CWDV5 BH12 H12
1.2713 55NiCrMoV6 55NCDV7 F.528 L6
1.2833 100V1 Y1105V BW2 W210
1.2842 90MnCrV8 90MV8 B02 2
1.3202 S12-1-4-5 BT15 F.5563 12-1-5-5 T15
13207 S10-4-3-10 Z130WKCDV10-10-04-03 F.553 10-4-3-10
1.3243 S6-5-2-5 Z85WDKCV06-05-05-04-02 2723 F.5613 6-5-2-5
1.3246 S7-4-2-5 Z110WKCDV07-05-04-04-02 F.5613 6-5-2-5 M41
1.3247 S2-10-1-8 Z110DKCWV09-08-04-02-01 BT42 F.5615 7-4-2-5 M42
1.3249 S2-9-2-8 BM34 F.5611 2-9-2-8 M33/M34
1.3255 S18-1-2-5 Z80WKCV18-05-04-01 BT4 F.5530 18-1-1-5 T4
1.3265 S18-1-2-10 BT5 F.5540 18-0-2-10 T5
1.3342 SC6-5-2 Z90WDCV06-05-04-03 M3
1.3343 S6-5-2 Z85WDCV06-05-04-02 BM2 2722 F.5603 6-5-2 M2
1.3344 S6-5-3 Z130WDCV06-05-04-04 F.5605 6-5-3 M3Class2
1.3346 S2-9-1 Z85DCWV08-04-02-01 BM1 H41/M1
1.3348 S2-9-2 Z100DCWV09-04-02-02 2782 F.5607 2-9-2 M7
1.3355 S18-0-1 Z80WCV18-04-01 BT1 F.5520 18-0-1 T1
1.3401 X120Mn12 Z120M12/Z120Mn12 F.82551-AM-X 120 Mn12 A128(A)
ŁH15 1.3505 100Cr6 100C6 534A99 2258 F.1310- 100 Cr6 52100
Hard-wearing steel
        HARDOX 400/500/600