连铸圆坯产品一览表 Construction Steel Products List
| 序号 No | 钢种大类 Category | 典型牌号 Grade | 规格（mm） Specifications | 执行标准 Standard | 主要用途 Application |
| 1 | 优质碳素结构钢 High quality carbon structural steel | 20～45 50Mn A105 1045 C45E S45Cr S48C | Φ380～800 | GB/T699 JIS G4051 技术协议 Technical protocol | 用于制作机械、液压、船舶等设备的轴、曲轴、连杆、齿轮、阀体、轧辊等部件。 Used to make shafts, crankshafts, connecting rods, gears, valve bodies, rolls, etc. of machinery, hydraulics, ships, etc. |
| 2 | 低合金高强度钢 Low alloy high strength steel | Q355 S355NL LF2 S355J2 R16MnH 16Mn | Φ380～800 | GB/T1591 EN10025 EN10021 ISO 14284 ISO 148-1 技术协议 Technical protocol | 用于制作机械、石油、水利、风电、建筑等领域的连接件、结构件。 Used to make connectors and structural parts in machinery, oil, water conservancy, wind power, construction and other fields. |
| 3 | 合金结构钢 Structural alloy steel | 20～45Mn2 20～45Cr 15～42CrMo 37CrMnMo 40CrMnMo 38CrMoAl 20～40CrNiMo SCM415～440 SNCM431 42～50CrMo4 AISI4130 AISI4140 AISI4340 AISI8630 LF6 F22 F11 12Cr2Mo1 14Cr1Mo | Φ380～800 | GB/T 3077 JIS G4053 ISO 683 ASTM A29 技术协议 Technical protocol | 用于制作风电行业的变桨、偏航轴承、增速箱齿圈；石油化工行业生产石油采油设备的阀体、套管；以及大型机械的回转支承等。 Used to make pitch, yaw bearing and gear ring of speed increasing box in wind power industry; valve body and casing of oil production equipment in petrochemical industry; and slewing bearing of large machinery, etc. |
| 4 | 管坯钢 Tube billet steel | 20G SA106B/C 15CrMoG 12Cr1MoVG P11 P22 12Cr2MoG WB36 15Ni1MnMoNbCu P5 P9 10Cr9Mo1VNbN P91 10Cr9MoW2VNbBN P92 X52 X65QS BNS X52N X80 X80Q 30CrMo 4130X 4142 4145 4147 | Φ150～800 | YB/T4149 GB/T 33145 GB 5310 技术协议 Technical protocol | 用于制作石油开采、天然气传输、火力发电等领域的钢管。 Used to make steel pipe for oil exploitation, natural gas transmission, thermal power generation and other fields. |
| 5 | 模具钢 Die steel | H13 8418 32Cr3Mo1V | Φ380～600 | 技术协议 Technical protocol | 用于制作挤压模具、压铸模具。 Used to make extrusion die and die casting die. |
| 6 | 齿轮钢 Gear steel | 20CrMnMoH 16MnCr5 18CrNiMo7-6 17CrNiMo6 SAE8620 | Φ380～800 | GB/T 5216 ISO 683-3 EN 10084 ASTM A304 技术协议 Technical protocol | 用于制作风电、机械等行业的齿轮零部件。 Used to make gear parts of automobile, wind power and various machinery industries. |
| 7 | 轴承钢 Bearing steel | GCr15 GCr15SiMn | Φ380～500 | 技术协议 Technical protocol | 用于锻圆、电渣重熔。 For forging round and electroslag remelting. |
| 8 | 铁路车轮钢 轮毂钢 Railway wheel steel, wheel hoop steel | CL50 CL55 CL60 CL65 CL70 ER7 ER8 ER9 AAR-A AAR-B AAR-C LG61 RT60 B6T等 | Φ380～500 | TB/T 2817 TB/T 2708 GB 8601 EN 13262 AAR M-107 TB/T 1882技术协议 Technical protocol | 用于制作铁路货车、客车、地铁、轻轨等轨道交通车辆的车轮和轮毂。 Used to make wheels and hoops for railway passenger and freight cars, subways, light rail and other rail transit vehicles. |
连铸圆坯产品应用 Construction Steel Products Application 
