江蘇永鋼集團

優特鋼棒材產品一覽表 Quality and Special Steel Round Bars List

序號 No	鋼種大類 Category	典型牌號 Grade	規格/mm Sizes	執行標準 Specifications / Standards	主要用途 Application
1	優質碳素結構鋼 High quality carbon structural steel	20～45 50Mn A105 S20Ti C45E C45R C45RCr S45Cr S45Ti	φ20～350	GB/T 699 JIS G4051 技術協議 Technical protocol	用于制作機械、液壓、機床、船舶、起重設備等的軸、連桿、曲軸、曲柄銷、齒輪、軋輥、回轉支承、閥體等。 Used to make shafts, connecting rods, crankshafts, crankpins, gears, rolls, slewing bearings and valve bodies of machinery, hydraulic pressure, machine tools, ships, lifting equipment ,etc.
2	低合金高強度鋼 Low alloy high strength steel	Q355 LF2 S355J2	Ф20～350	GB/T 1591 EN 10025 EN 10021 技術協議 Technical protocol	用于制作機械零件、齒輪軸、熱作模具、閥體、壓力容器、輥套等。 Used to make mechanical parts, gear shaft, hot work mold, valve body, pressure vessel, roller sleeve, etc.
3	合金結構鋼 Structural alloy Steel	20～45Mn2 20～45Cr 15～42CrMo 37CrMnMo 40CrMnMo 38CrMoAl 20～40CrNiMo SCM415～440 SNCM431 42～50CrMo4 AISI4130 AISI4140 AISI4137H AISI4145H AISI4340 AISI8630 LF6	Ф20～350	GB/T 3077 JIS G4053 ISO 643 ASTM A29 技術協議 Technical protocol	用于制作礦山機械、工程機械、石油機械、液壓、機床、汽車、起重設備等的軸、齒輪、連接件、結構件。 Used to make shafts, gears, connectors and structural parts of mining machinery, engineering machinery, petroleum machinery， hydraulic pressure, machine tools, automobiles, lifting equipment, etc.
4	管坯鋼 Tube billet steel	20G SA106B/C 15CrMoG 25CrMo 27CrMo-F 27CrMo44 29CrMoVNb 30CrMo 12Cr1MoVG 12Cr5Mo T11 T22 WB36 15Ni1MnMoNbCu T5 10Cr9Mo1VNbN T91	Ф20～350	YB/T 5137 GB 5310 YB/T 5221 API 5CT 技術協議	用于制作石油開采、天然氣傳輸、火力發電等工業領域的鋼管。 Used to make steel pipes for oil exploitation, natural gas transmission, thermal power generation and other industrial fields.
5	磨球鋼 Grinding ball steel	B2 B3 S550A S550C S650A S-704 S-901 R25 XK5062 XK5095 X2K5170 XK51105 X3K5140H	Ф20～120	技術協議 Technical protocol	用于制作冶金、礦山、水泥等領域的磨球。 Used to make grinding balls in metallurgy, mining, cement and other fields.
6	齒輪鋼 Gear steel	20CrMnTiH 20CrMnMoH 22CrMoH 16-28MnCr5 18CrNiMo7-6 17CrNiMo6 SCM420H SAE8620	Ф20～350	GB/T 5216 ISO 683-3 EN 10084 ASTM A304 技術協議 Technical protocol	用于制作汽車、風電、機械行業的齒輪零部件。 Used to make gear parts of automobile, wind power and various machinery industries.
7	軸承鋼 Bearing?steel	GCr15 GCr15SiMn 100Cr6 SAE52100	Ф20～200	GB/T 18254 技術協議 Technical protocol	用于制作汽車、風電、機械行業的齒輪零部件。 Used to make Rolling elements and rings.
8	非調質鋼 Non quenched and tempered steel	C38+N2 38MnVS6 49MnVS3 HDFT45 45MnSiVSQ HY4520 YG1401	Ф20～260	技術協議 Technical protocol	用于制作機械設備活塞桿、拉桿、推桿、注塑機拉桿（哥林柱）及汽車曲軸、半軸等機械零件。 Used to make manufacture mechanical equipment piston rod, pull rod, push rod, injection molding machine pull rod (Colin column) and automobile crankshaft, halfshaft, etc machine parts.
9	車軸鋼 Axle steel	LZ50 EA1N AAR M-101F	230230 250250 280*280	TB/T 2945 EN 13261 AAR M-101 技術協議 Technical protocol	用于制作鐵路貨車、鐵路客車、地鐵、輕軌等軌道交通車輛的車軸。 Used to make axles of railway passenger and freight cars, subways, light rail and other rail transit vehicles.
10	工程機械用鋼 Steel for engineering machinery	35MnB 40Mn2 40CrBM 15B35Cr	Ф20～180	技術協議 Technical protocol	用于制作工程機械的鏈軌節、銷軸、銷套、支撐輪。 Used To make the chain link, pin shaft, pin sleeve and support wheel of construction machinery.