| Steel Grade | Nominal Thickness | Application |
| AH32, AH36 | 16.0 | Higher strength hull structural steel |
| A, B, D, E | 22.0 | Normal strength hull structural steel |
Mainly used to manufacture the crude oil storage tank, spherical storage tank, nuclear power station, hydraulic power station, thermal power station and petrochemical projects, etc
Mainly used to manufacture the energy transmission pipeline for oil and natural gas and other mediums.
| JIS G 3103:1995 | CHINA STEEL STANDARDS |
| SPHT3 | Q235A, 20 |
| SPHT1 | 08AL |
| SPHT2 | 15, Q215 |
Continuously hot rolled steel strip for higher toughness pipeline.
| Steel Grade | Nominal thickness in mm | Application |
| X70RL | 6.0-10.0 | Applicable to manufacturing of pipeline conveying petroleum by spiral seam welding processing |
| X60RL | 6.0-10.0 | Applicable to manufacturing of pipeline conveying petroleum by spiral seam welding processing |
Mainly used to manufacture the structure components in the area of building, bridge, machinery. This group includes: heavy plate for general structure, unalloyed heavy plate for structure, heavy plate for welded structure, heavy plate for building structure, high strength heavy plate for welded structure, atmospheric corrosion resistant heavy plate for welded structure, high carbon contents heavy plate for mechanical structure and heavy plate for plastic die, etc.
| DIN17100-80 | EN10025:1990 | EN10025-2:1998 | CHINA STEEL STANDARDS |
| — | Fe510B | S355JR | Q345B, Q390B |
| St33 | Fe310-0 | S185 | Q195, Q215A, Q215B |
| St37-2 | Fe360B | S235JR | Q235B |
| St44-2 | Fe430B | S275JR | Q255B |
| JIS G 3106:1999 | CHINA STEEL STANDARDS |
| SM570C | Q460C,Q460D |
| SM400A | Q235A, Q235B, Q255A, Q255B, 20 |
| SM400B | Q235C,Q255B,20 |
| SM400C | Q235D,20 |
| SM490A | Q275,Q345A,Q345B |
| SM490B | Q275,Q345C |
| SM490C | Q275,Q345D |
| SM490YA | Q345A,Q345B |
| SM490YB | Q345C |
| SM520B | Q390A,Q390B |
| SM520C | Q390C |
| Mainly used as various substrates and widely applied in automobile manufacture, cold pressing parts and structural parts, etc. |
| JIS G 3101:1995 | CHINA STEEL STANDARDS |
| SS540 | — |
| SS330 | Q195, Q215A, Q215B, 15 |
| SS400 | Q235A, Q255A |
| SS490 | Q275A |
| DIN 17100-80 | EN10025:1990 | CHINA STEEL STANDARDS |
| St52-3 | S355J0 | Q345C, Q390B, Q390C |
| St33 | S185 | Q195, Q215A, Q215B |
| St37-2, RSt37-2 | S235JR | Q235B |
| St37-3 | S235J0 | Q235C |
| St44-2 | S275JR | Q255B |
| St50-2 | E295 | Q275, Q345A |
| Material Classification | Steel Characteristics | Typical Use | Grade Examples |
| Pipeline steel | Low carbon content, low carbon equivalent, high purity and low impurity content, fine all around mechanical properties, low temperature toughness and welding property. | Spiral welded pipe for petroleum and natural gas long-distant transportation. | X60,X70, S360 X60RL |
| Cold Forming Steel | Enough ductility to bend 180° in any directions, suitable for simple forming, bending and welding machining to manufacture parts do not require much on appearance | Common machined parts such as gear, electric instrumentation box, hydraulic jack casing, etc. | SPHC DD11(StW22) |
| Cold Forming Steel | A better ductility than common grade and thus fit for machined parts through drawing or relatively complicated deformation. | Bicycles’ collapsible, wheel rim and wheel disks, etc. | SPHD DD12(StW23) |
| Cold Forming Steel | With better ductility than drawing grade and a better and even performance, this material can be used in manufacturing machined parts through deep drawing or complicated and drastic deformation. | Automobile’s bumper, compressor unit, oil filter box, etc. | SPHE DD13(StW24) |
| Structural Steel | Guaranteed mechanical properties (strength, elongation, impact tenacity, etc.) and process performance(bending),fine welding property, fit for simply machined welded or riveted structures | Building structure, bridge, ships, railway vehicles, pipeline machines and other structure units | SS400 St37-2 St52-3 |
| Automobile Structure Steel | Similar to structural steel in properties, and besides strength also requires a better elongation etc., to ensure fine machining-forming properties, more strict in surface quality and dimension accuracy. | Automobile′s girder, beam, wheel, chassis components | APH370 QstE420TM B510L |
| Corrosion Resistant Structure Steel | Beside the strength properties of above-mentioned structural steel, it is also provided with fine atmosphere or sulphuric acid or seawater corrosion resistance property. | Oil well platform, sea harbour buildings, oil extraction platforms, ships, vehicles, chemical and oil vessels for corrosive media | B480GNQR NAW400 B490NQR S-TEN2 (S-ten2) MARILOYS490A (Mariloy S50A) |
| Mechanical Structure Steel | Similar to structural steel, and besides strength also with requirement on toughness and wear ability to fit for machinery and tool manufacturing. | Chains, binder, gardening tools | S20C C35 |
| Welded gas vessel pressure vessel steel | Apart from fine mechanical properties, weld ability and machining properties, there are strict requirements on plate material, thickness evenness, and steel quality to ensure a safe and reliable service under high pressure. | Steam boiler equipments, welded gas vessel and pressure vessel working in high temperature places | SB410 19Mn6 SG295 B440HP |
| Standard No | Grade | Description |
| JIS G4051 | S20C,S35C,S09CK,S15CK | Mechanical structure carbon steel |
| JIS G3101 | SS330,SS440,SS490,SS540 | General structure steel |
| JIS G3106 | SM400A,SM400B,SM400C,SM490A, SM490B,SM490C,SM490YA,SM490YB,SM520B,SM520C | Welded structure steel |
| JIS G3113 | SAPH310,SAPH370,SAPH400,SAPH440 | Automobile structure steel |
| JIS G3116 | SG295,SG325 | Plate and strip for gas cylinders |
| JIS G3131 | SPHC,SPHD,SPHE | Low carbon hot rolled plate and strip |
| JIS G3132 | SPHT1,SPHT2,SPHT3 | Strip for welded pipe |
| JIS G3136 | SN400A,SN400 | Steels for building structure |
| Standard No. | Grade | Description |
| SEW 092 | QstE340TM, QstE380TM, QstE420TM, QstE460TM, QstE500TM | Cold deformation hot rolled fine grain steel |
| DIN EN 10111 | DD11, DD12, DD13 | Hot rolled low carbon steel for cold forming |
| DIN EN 10025 | S235JR, S235JRG2, S275JR, S275J2G4, S355JR, S355K2G3 | Hot rolled unalloyed structure steel |
| DIN 17100 | St33, St37-2, St37-3, St44-2, St50-2, St52-3 | General structure steel |
| DIN 17102 | StE255, StE355 | Wieldable fine grain structure steel |
| DIN 17175 | HII, 19Mn6 | Heat resistant plate or strip |
| DIN 17200 | C22, C35 | Quenched and tempered |
| DIN 17210 | C10, C15 | Surface hardened steel |
| SEW 087 | WT St37-2,WT St52-3 | Weather proof structure steel |
| Standard No. | Grade | Description |
| A1011 | CSTypeA,DSTypeA,SSGrade33, HSLASgrade50,HSLAS-Fgrade50µÈ | Hot rolled steel sheet and strip, carbon, structure, high strength low alloy, with improved formability |
| A36 | -- | Carbon Structural steel |
| A569 | -- | Commercial hot rolled carbon steel sheet and strip |
| A570 | Grade 33, Grade 36, Grade 40, Grade 45, Grade 50, Grade 55 | Hot rolled carbon structure steel and strip |
| A572 | Grade 50, Grade 55, Grade 65 | Low alloy high strength structural steel with Nb/V |
| A607 | Grade 50, Grade 55 | Low alloy high strength structure steel plate and strip with Nb/V content |
| A622 | -- | Hot rolled carbon steel sheet and strip for drawing |
| A635 | -- | Hot rolled carbon structure steel sheet |
| A715 | Grade 50 | Low alloy high strength hot rolled sheet or strip with improved formability |
| Standard No. | Grade | Description |
| SAE J403 | SAE1006, SAE1008, SAE1010, SAE1012, SAE1017, SAE1018 | SAE carbon steel′s chemical composition |
| Standard No. | Grade | Description |
| API 5L | B, X42, X46, X52, X56, X60, X65, X70, X80 | Steel for Pipeline |