Grade of steel
| 国标（GB） | 美标（ASTM） | 日标（SUS） | 德标（DIN） |
| 2520 | 310S | SUS310S | 1.4845 |
| GH3304 | N10276 | HastelloyC276 | 2.4819 |
High quality carbon structural steel grades approximate comparison | ||||||||
Serial number | 中国(GB) | 中国台湾 | 国际标准 | 俄罗斯(Russia) | 日本（SUS） | 韩国 | 德国（DIN） | 美国（ASTM） |
1 | 08 F | S9CK | C10 | 08 kn | S09CK | SM9CK | C10 | 1008 |
2 | 10 F | S10CK | C10 | 10 kn | S09CK | SM9CK | C10 | 1010 |
3 | 15 F | S15CK | C15E4 | 15 kn | S15CK | SM15CK | C15E | 1015 |
4 | 8 | S10C | C10 | 8 | S10C | SM10CK | C10 | 1008 |
5 | 10 | S10C | C10 | 10 | S10C | SM10CK | C10 | 1010 |
6 | 15 | S15C | C15E4 | 15 | S15C | SM15CK | C15 | 1015 |
7 | 20 | S20C | C20E4 | 20 | S20C | SM20CK | C22E | 1020 |
8 | 25 | S25C | C25E4 | 25 | S25C | SM25CK | C25E | 1025 |
9 | 30 | S30C | C30E4 | 30 | S30C | SM30CK | C30E | 1030 |
10 | 35 | S35C | C35E4 | 35 | S35C | SM35CK | C35 | 1035 |
11 | 40 | S40C | C40E4 | 40 | S40C | SM40CK | C40E | 1040 |
12 | 45 | S45C | C45E4 | 45 | S45C | SM45CK | C45E | 1045 |
13 | 50 | S50C | C50E4 | 50 | S50C | SM50CK | C50E | 1050 |
14 | 55 | S55C | C55E4 | 55 | S55C | SM55CK | C55E | 1055 |
15 | 60 | S58C | C60E4 | 60 | S58C | SM58CK | C60E | 1060 |
16 | 65 | C60E4 | 65 | G480 1 S65-CSP | 1722167 E | 1065 | ||
17 | 70 | 8458-3 Digital audio broadcasting | 70 | C70-CSP | 67 E4 | 1071 | ||
18 | 75 | 2905 SUP3 | Digital audio broadcasting | 75 | C75E | 1075 | ||
19 | 80 | SUP3 | SC | 80 | SK5-CSP | D3701 SPS1 | C75E | 1080 |
20 | 85 | SUP3 | DH | 85 | SK5-CSP | <span style="font-family: arial, helvetica, sans-serif; font-size: 14px; | ||
