References
■ Metals Symbols Chart (Excerpt) ● Carbon Steels for Structural Use JIS AISI DIN GB S10C 1010 C10 10 S15C 1015 C15 15 S20C 1020 C22 20 S25C 1025 C25 25 S30C 1030 C30 30 S35C 1035 C35 35 S40C 1040 C40 40 S45C 1045 C45 45 S50C 1049 C50 50 S55C 1055 C55 55 ● Ni-Cr-Mo Steels SNCM220 8620 21NiCrMo2 20CrNiMo SNCM240 8640 — — SNCM415 — — — SNCM420 4320 — 20CrMo SNCM439 4340 — 40CrNiMo, 42CrMo, 35CrMo SNCM447 — — — ● Cr Steels SCr415 — — 15Cr SCr420 5120 — 20Cr SCr430 5130 34Cr4 30Cr SCr435 5132 37Cr4 35Cr SCr440 5140 41Cr4 40Cr SCr445 5147 — 45Cr ● Cr-Mo Steels SCM415 — — 15CrMo SCM420 — — 20CrMo SCM430 4131 — 30CrMo SCM435 4137 34CrMo4 35CrMo SCM440 4140 42CrMo4 42CrMo SCM445 4145 — — ● Mn Steels and Mn-Cr Steels for Mechanical Structures SMn420 1522 — 20Mn2 SMn433 1534 — 30Mn2, 35Mn2 SMn438 1541 — 40Mn2 SMn443 1541 — 40Mn2, 45Mn2 SMnC420 — — 15CrMn SMnC443 — — 40CrMn ● Carbon Tool Steels SK1 — — T13 SK2 W1-11 1 / 2 — T12 SK3 W1-10 C105W1 T11 SK4 W1-9 — T10 SK5 W1-8 C80W1 T9 SK6 — C80W1 T8 SK7 — C70W2 T7
● High Speed Steels JIS AISI
● Austenitic Stainless Steels JIS AISI DIN
DIN GB
GB
SKH2 SKH3
T1
— W18Cr4V
SUS201 201 SUS202 202
— 1Cr17Mn6Ni5N
T4 S18-1-2-5 W18Cr4VCo5 SKH10 T15 S12-1-4-5 W12Cr4V5Co5 SKH51 M2 S6-5-2 W6Mo5Cr4V2 SKH52 M3-1 — W6Mo5Cr4V3 SKH53 M3-2 S6-5-3 CW6Mo5Cr4V3 SKH54 M4 — — SKH55 — S6-5-2-5 W6Mo5Cr4V2Co5 SKH56 M36 — —
— 1Cr18Mn8Ni5N SUS301 301 X12CrNi17 7 1Cr17Ni7 SUS302 302 — 1Cr18Ni9 SUS302B 302B — — SUS303 303 X10CrNiS18 9 Y1Cr18Ni9 SUS303Se 303Se — Y1Cr18Ni9Se SUS304 304 X5CrNiS18 10 0Cr19Ni9N SUS304L 304L X2CrNi19 11 00Cr18Ni10 SUS304NI 304N — 0Cr18Ni10 SUS305 305 X5CrNi18 12 1Cr18Ni12 SUS308 308 — — SUS309S 309S — 0Cr23Ni13 SUS310S 310S — 0Cr25Ni20 SUS316 316 X5CrMo17 12 2 0Cr17Ni12Mo2 SUS316L 316L X2CrNiMo17 13 2 00Cr17Ni14Mo2 SUS316N 316N — 0Cr17Ni12Mo2N SUS317 317 — 0Cr19Ni13Mo3 SUS317L 317L X2CrNiMo18 16 4 00Cr19Ni13Mo3 SUS321 321 X6CrNiTi18 10 0Cr18Ni10Ti SUS347 347 X6CrNiNb18 10 0Cr18Ni11Nb SUS384 384 — — ● Heat Resistant Steels SUH31 — — 4Cr14Ni14W2Mo SUH35 — — 5Cr21Mn9Ni4N SUH36 — X53CrMnNi21 9 — SUH37 — — 2Cr21Ni12N SUH38 — — — SUH309 309 — 2Cr23Ni13 SUH310 310 CrNi2520 2Cr25Ni21 SUH330 N08330 — 1Cr16Ni35 ● Ferritic Heat Resistant Steels SUH21 — CrAl1205 1Cr19Al3 SUH409 409 X6CrTi12 06Cr11Ti SUH446 446 — 2Cr25N ● Martensitic Heat Resistant Steels SUH1 — X45CrSi9 3 4Cr9Si2 SUH3 — — 4Cr10Si2Mo SUH4 — — 8Cr20Si2Ni SUH11 — — — SUH600 — — 2Cr12MoVNbN
N
● Alloy Tool Steels SKS11 F2
— — — — — V — —
SKS51 L6
SKS43 W2-9 1 / 2 SKS44 W2-8
SKD1 D3 SKD11 D2
X210Cr12 Cr12
— Cr12MoV
● Gray Cast Iron FC100 No 20B GG-10 HT100 FC150 No 25B GG-15 HT150 FC200 No 30B GG-20 HT200 FC250 No 35B GG-25 HT250 FC300 No 45B GG-30 HT300 FC350 No 50B GG-35 HT350 ● Nodular Cast Iron FCD400 60-40-18 GGG-40 QT400-18 FCD450 — GGG-40.3 QT450-10 FCD500 80-55-06 GGG-50 QT500-7 FCD600 — GGG-60 QT600-3 FCD700 100-70-03 GGG-70 QT700-2 ● Ferritic Stainless Steels SUS405 405 X10CrAl13 0CR13Al SUS429 429 — 1Cr15 SUS430 430 X6Cr17 1Cr17 SUS430F 430F X7CrMo18 Y1Cr17 SUS434 434 X6CrMo17 1 1Cr17Mo ● Martensitic Stainless Steels SUS403 403 — 1Cr12,1Cr17Ti SUS410 410 X10Cr13 1Cr13 SUS416 416 — Y1Cr13 SUS420JI 420 X20Cr13 2Cr13 SUS420F 420F — Y3Cr13 SUS431 431 X20CrNi17 2 1Cr17Ni2 SUS440A 440A — 7Cr17 SUS440B 440B — 8Cr17 SUS440C 440C — 9Cr18
N70
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