S3555jr + N yog qhov qis-alloy high-zog steel phaj. Nws yog European txheem steel phaj: nws siv en {4}}}}}}}}: s355jr + n sib sau rau cov khoom siv hauv tsev Q345d. Tus ntoo hluav taws-hluav taws: kub dov, tswj dov, ib txwm muaj. Nws feem ntau siv rau kev txiav cov khoom loj. Cheebtsam, kev siv hlau thiab metallurgical machinery thiab khoom siv, tshuab machinerine, tshuab ntxhua tshuab, choj nce, thiab lwm yam.
S3555jr + N Tsawg Alloy Steel Phaj Tshuaj Muaj Zog:
| Teem nqi | C | Mn | Si | P | S | N | CU | Lub TSHUAB |
| S355jr + n | {{0 {}. 24 Max. | 1.6 Max. | {{0 {}. 55 Max. | 0. 04 Max. | 0. 04 Max. | {{0 {}}. 012 max. | {{0 {}. 55 Max. | {{0 {}}. 47 Max. |
S3555jr + n HSLA Cov Khoom Hlau Hlau Phaj
| Teem nqi | Tuab (mm) | Min Tawm Los (MPA) | Tensile (MPA) | Elongation (%) | Min xav txog lub zog | |
| S355jr + n | 8 hli -100 hli | 315-355 mpa | 450-630 mpa | 18-20% | 20 | 27J |
| 101mm -200 hli | 285-295 mpa | 450-600 mpa | 18% | 20 | 27J | |
| 201mm -400 hli | 275 mpa | - | 17% | 20 | 27J | |
