Overview
1045 steel is a versatile medium carbon steel with a carbon content of 0.45%, offering an optimal balance of strength and ductility. It is widely used in industrial applications due to its excellent machinability and weldability. The steel can be further enhanced through heat treatment processes like quenching and tempering, making it suitable for high-stress components. As a cost-effective material, 1045 steel is favored in manufacturing sectors for its reliability and adaptability. It conforms to standards such as ASTM A29 and SAE J403, ensuring consistent quality for B2B buyers. Its popularity stems from its ability to be forged, cold worked, or machined into precision parts.
Physical and Chemical Properties
1045 steel exhibits a tensile strength of 585–710 MPa and a yield strength of 450 MPa in its cold-drawn state. Its hardness ranges from 170 to 210 HB (Brinell), which can be increased through heat treatment. The material's elongation at break is approximately 12–16%, providing good toughness for dynamic loads. Chemically, it consists primarily of iron (98.5–99%) and carbon (0.43–0.5%), with trace amounts of manganese (0.6–0.9%), phosphorus, and sulfur. Its thermal conductivity is around 51.9 W/m·K, and it has moderate resistance to corrosion, often requiring protective coatings for outdoor use.
Main Applications
1045 steel is extensively used in the automotive and machinery industries for components like crankshafts, couplings, and hydraulic fittings. Its strength and wear resistance make it ideal for gears and spindles in heavy equipment. The construction sector employs it for bolts, studs, and load-bearing structures. In tooling, it serves as a base material for jigs and fixtures due to its machinability. Agricultural machinery also benefits from its durability in parts like plowshares and axles. Custom applications include knife blades and firearm components after proper heat treatment.
Safety and Storage
When machining 1045 steel, use coolant to reduce dust and prevent overheating. Proper ventilation is necessary to avoid inhalation of fine particles. Workers should wear gloves and eye protection to prevent injuries from sharp edges or flying debris. Store the material in a dry environment to prevent rust formation. Applying a light oil coating can further protect untreated surfaces. For long-term storage, palletize and cover steel bars or sheets to minimize exposure to humidity and corrosive elements.
B2B Procurement Guide
When sourcing 1045 steel, verify supplier certifications (e.g., ISO 9001) and material test reports (MTRs) to ensure compliance with ASTM or equivalent standards. Specify delivery forms (round bars, flats, or forged blanks) and surface finishes (hot-rolled, cold-drawn, or turned). Negotiate bulk pricing for orders exceeding 10 metric tons, with discounts commonly ranging from 5–15%. Consider regional logistics costs, as domestic suppliers may offer shorter lead times. For critical applications, request samples for mechanical testing before large-scale procurement.
Related Manufacturers
- 主营：气动元件、气动电磁阀、气缸、换向阀、压力传感器、气源处理单元、磁性开关、快插接头、液压元件、液压泵、轴向柱塞泵、齿轮泵、叶片泵、单向阀、电磁阀、减压阀、比例阀、伺服阀、放大器、压力继电器、电磁阀插头、蓄能器、伺服驱动器、伺服电机、密封圈
- 主营：比例阀、单向阀、螺纹阀、控制阀、电磁阀、平衡阀、减压阀、液压阀、气动阀、插装阀、压力开关、roth传感器、压力传感器、工程机械阀、气动单元阀、duplomatic线圈、airtec进口元件、工程机械专用阀
- 主营：机电设备
- 主营：放大器、单片机、调压阀、plc模块、减压阀、byd3m-tdt、狭缝板、延长线、plc电池、消音器、cpu单元、everlight、静电针、接触件、比例阀、编码器、电池盒、电磁阀、通迅线、检测仪、清除器、电源线、变压器、microchip、缓冲器
- 主营：plc模块、电磁阀、继电器、编码器、通讯卡、接触器、启动器、变频器、传感器、连接线、手推阀、通讯板、编程口、断路器、可调气、驱动器、原装plc、后接线、cp1w-40edt、通讯模块、转角气缸、下压气缸、电源模块、无杆气缸、控制模块
- 主营：电力仪表、多功能仪表、传感器、编码器、模块、控制器
- 主营：贝加莱、康耐视、基恩士、科尔摩根、罗克韦尔、达尔萨、PLC模块、驱动器、读码器、工业相机、CPU模块、西门子、CCD相机
- 主营：照度计、测量仪、tc-800-pm、63.9356-24、带钳头、rw-3701-1、连接器、探伤仪、注油塞、测力计、riftekidk、5.2501.001、mohrct100b、oetikercp10、ferromaster、eltextco030s、磁导率仪、压力检查、oetikerelk02、光测试仪、metalelektro、ho7.5-11.6me、bkmikrotk91a、multi-contact、crh800-w35f173
- 主营：x20cp3583、x20cp3585、控制板、x20ai2622、x20cs1020、x20slx410、x20ai4636、x20ai4632、x20cm4810、双十二、光栅尺、缓冲器、es7s/ev7s、x20si2100、p+f模块、x20if1030、7ao352.70、x20ps9600、变频器、x20ps3300、触摸屏、7ai354.70、x67ai2744、通讯卡、x20hb2881
- 主营：打印机、止回阀、e2vmg5193、lukase100、温度计、液位计、照度计、联轴器、继电器、控制器、测试仪、过滤器、hmsab6605、编程器、传感器、电容器、电源组、tecna9300、incon1932、轴承圈、riftekidk、电磁铁、接地环、压力表、bartecr302
- 主营：齿轮泵、调压阀、机械阀、储油箱、气动阀、比例阀、减速机、电磁阀、液压阀、方向阀、平衡阀、控制器、液压泵、电液阀、插装阀、放大器、柱塞泵、挡停器、溢流阀、换向阀
- 主营：电磁换向阀、电液换向阀、比例阀、溢流阀、单向节流阀、二通插装阀、柱塞泵、齿轮泵、叶片泵、输送机电机、控制模块、伺服控制器、伺服驱动、气动元件、气动阀、TK-3E校验仪、前置器、变送器、压力继电器、压力传感器、比例放大器
- 主营：AMETEK电机、KEB变频器、贝加莱模块、FESTO电磁阀、SEW减速机、WAGO模块、力士乐电磁阀、德威尔、SICK、SMC、仙童、CCS、MAC
- 主营：后面板、齿轮泵、工业品、电线圈、压线钳、分析仪、act模块、张力计、监测仪、应变片、风速计、加药阀、减速箱、消音器、隔膜泵、蓄水器、气动阀、开发板、光栅尺、微量泵、减压器、缓冲器、高温计、磁开关、减速机
- 主营：gd312nc-c、li40-130s、m45x1.5mk、m45x1.5ms、gd316nc-c、减速机、gp410so-c、m14x1.5ws、m14x1.5wb、gp410sc-c、bk1036-08、m14x1.5wk、gp404sc-c、gp1816n-b、bk1045-03、sw100d4-c、gz1020-01、mah45x1.5、gd316no-c、dr.kaiser、gd303nc-c、dvr1125pb、gd303no-c、m8x0.75rm、m8x0.75rh