STRUCTRUAL STEEL
General structral steel has high strength and good formablilty. It can afford heavy load after common machining. The structure steel of Baosteel has reliable mechanical property, good formability and excellent welding performance, which is widely used in various industries. Widely used in architecture, bridge construction, marine craft, railway locomotive heavy machine and other structural parts. Structure steel can be classified as normal structure steel, welding structure steel, pipe steel and building structure. Baosteel has produced the structure steel with pure composition, good control of segregation and inclusion. The product is welcomed in many industries.
| Q/BQB 303 | JIS G 3101 | GB/T 912, GB/T 3274, GB/T 710, GB/T 711 | 备注 Remarks |
|---|---|---|---|
| SS330 | SS330 | Q195 / Q215A / Q215B / 10 | |
| SS400 | SS400 | Q235A | SS400: Rm≥400MPa；Q235A: Re≥235MPa |
| SS490 | SS490 | Q275A | |
| SS540 | SS540 | Q420A |
| Q/BQB 303 | EN 10025-2 | GB/T 912, GB/T 3274 | 备注 Remarks |
|---|---|---|---|
| S185 | S185 | Q195, Q215A | |
| S235JR | S235JR | Q235B | |
| S235J2 | S235J2 | Q235D | S235J2: Re≥235MPa，纵向冲击；JR: 27J@+20°C；J0: 27J@0°C；J2: 27J@-20°C；K2: 40J@-20°C |
| S275JR | S275JR | Q275B | |
| S275J0 | S275J0 | Q275C | |
| S275J2 | S275J2 | Q275D | |
| E295 | E295 | Q345A | |
| S355JR | S355JR | Q345B | |
| S355J0 | S355J0 | Q345C | |
| S355J2 | S355J2 | Q345D | |
| S355K2 | S355K2 | Q345E |
| Q/BQB 303 | EN 10025-2 | GB/T 912, GB/T 3274 | 备注 Remarks |
|---|---|---|---|
| StE255 | – | Q235C, Q235D | St255: Re≥255MPa；N: 40J@-20°C 或 27J@-30°C；NL: 27J@-50°C |
| StE285 | S275N | Q275C, Q275D | |
| StE355 | S355N | Q345C, Q345D |
| Q/BQB 303 | EN 10025-2 | GB/T 912, GB/T 3274 | 备注 Remarks |
|---|---|---|---|
| SM400A | SM400A | Q235A, Q235B | SM400C: Rm≥400MPa, 47J@0°C |
| SM400B | SM400B | Q235C | |
| SM400C | SM400C | Q235D | |
| SM490A | SM490A | Q345A, Q345B | |
| SM490B | SM490B | Q345C | |
| SM490C | SM490C | Q345D | |
| SM490YA | SM490YA | Q390B | |
| SM490YB | SM490YB | Q390C | |
| SM520B | SM520B | Q420A, Q420B | |
| SM520C | SM520C | Q420C | |
| SM570, BSM590 | SM570 | Q460C, Q460D | BSM590: Rm≥590MPa, 47J@-5°C |
| Q/BQB 303 | JIS G 3132 | GB/T 912, GB/T 3274, GB/T 710, GB/T 711 |
|---|---|---|
| SPHT1 | SPHT1 | 08 |
| SPHT2 | SPHT2 | 15, Q215 |
| SPHT3 | SPHT3 | Q275A |
| SPHT4 | SPHT4 | Q390A |
| Q/BQB 303 | JIS G 3136 | GB/T 19879 | 备注 Remarks |
|---|---|---|---|
| SN400A | SN400A | – | |
| SN400B | SN400B | Q235GJ-C | SN400B: Rm≥400MPa, 27J@0°C |
| SN490B | SN490B | Q345GJ-C |
