Quenched and Tempered Steel SAE4140 SAE4145 SAE4340 SCM440 42CrMoS4 708M40 Steel Round Bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
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Quenched and Tempered Steel SAE4140 SAE4145 SAE4340 SCM440 42CrMoS4 708M40 Steel Round Bar
Products Details
1. Chemical Composition and Mechanical Properties(In Quenched & Tempered State)
Material | 4140 | ||
Chemical Composition | Mechanical Properties(In Quenched & Tempered State) | ||
C | 0.38-0.45 | Tensile strength(MPA) | ≥1080 |
Si | 0.17-0.37 | Yield strength (MPA) | ≥930 |
Mn | 0.50-0.80 | Elongation(δ5/%) | 12 |
Cr | 0.90-1.20 | Reduction in Area (ψ/%) | 45 |
Mo | 0.15-0.25 | Impact (J) | 63 |
P | ≤0.035 |
Hardness |
≤217HB |
S | ≤0.035 | ||
Cu | ≤0.30 | ||
Ni | ≤0.30 | ||
2. Product Application Areas
Our products have been used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,chemical industry,electronic information,achine manufacture, petrochemical, automotive,instrument and meter, Communication ,transportation, and medical instruments, etc.
3. Similar steel grade & equivalent steel materials
USA | Japanese | Gemany | British | France | International | Chinese |
ASTM&AISI&SAE | JIS | EN DIN | EN BS | EN NF | ISO | GB |
4140 | SCM440 | 42CrMo4 1.7225 | 42CrMo4 1.7225 | 42CrMo4 1.7225 | ------ | 42CrMo |
Product Sales Information
Material | 4140 steel round bar |
Size | Diameter:20mm-1000mm Length:500mm-6000mm |
Origin place | Made In China |
Delivery Condition | Hot rolled,cold drawn,forged |
Surface require | Black,grinding,bright,polish |
Heat treatment | Quenched,Tempered,annealed |
Packing | seaworthy packing ,wooden case ,carton,woven bag or at client's requires |
Delivery time | In 10-50 days |
Trade Term | EXW,FOB,CIF |
Payments | T/T or L/C at sight |
Port | China main Port,such as shanghai,Dalian,Shenzhen port. |
MOQ | 1 Ton |
Company Main Products
Alloy Steel | 4140, 4142, 42CrMo4, 1.7225, SCM440, 4130, SCM430, 25CrMo4, 1.7218, 34CrNiMo6, 1.6582, 4340, SNCM439, 36CrNiMo4, 1.6511, SACN645, 1340, SMn438, SNC236, |
Tool Steel | H13, 1.2344, SKD61, D2, SKD11, 1.2379, 1.2510, 01, SKS3, 95MnWCr5, D3, SKD1, 1.2419, SKS31, H21, SKD5, 1.2581, P20, 35CrMo7, 1.2738, 1.2316, M2 |
Bearing Steel | GCr15, 52100, SUJ1, SUJ2, 100Cr6, 1.2067, 55C, 8620, 4320, 9310, 440C, M50 |
Spring Steel | 9260, SUP6, SUP7, 1.7108, 54SiCr6, 1.7102, 5155, SUP9, 1.7176, 5160, 1.7177, 6150, SUP10, 51CrV4, 1.8159 |
Stainless Steel | 321, sus321, 1.4541, 304, SUS304, 1.4301, 410, SUS410, 1.4006, 420, 1.4021, 1.4028, 434, 1.4113, 316L, SUS316L, 1.4435, 630, 1.4542, 431, 1.4057, |
Products Show
Application
| Carbon Steel | Mold bottom, Plastic mold, Construction machinery parts Automobile parts, Security grills, Screens, Construction |
| Bearing Steel | Aerospace, Navigation, Nuclear energy, Chemical industry Electronic information, Petrochemical, Instrument and meter Transportation |
| Cr-Mo Steel | Mechanism & Fasteners gear, Stressed components for vehicles Engines and machines, Parts of larger cross-section |
| Gear Steel | All kinds of gears, Statically and dynamically stressed component for vehicles Engines and machine, Larger cross-section parts, Crankshafts |
Work Shop
Company Information
CNBM International Corporation is the most important trading platform of CNBM group.
Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.
FAQ
1, Your advantages?
professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale
2, Test & Certificate?
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem
3, Factory or Trading Company?
CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.
4, Payment Terms?
30% TT as deposit and 70% before delivery.
Irrevocable L/C at sight.
5, Trading Terms?
EXW, FOB, CIF, FFR, CNF
6, After-sale Service?
CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.
For any problem, please kindly contact us at any your convenient time.
We'll reply you in our first priority within 24 hours.
Packaging & Delivery
1, Packaging: seaworthy package or as required
2, Delivery: 35-45 days or based on quantity
- Q: How do steel round bars differ from other types of steel bars?
- Steel round bars differ from other types of steel bars primarily in their shape. Unlike flat bars or square bars, round bars have a cylindrical shape with a circular cross-section. This shape makes round bars highly versatile and suitable for various applications, such as construction, manufacturing, and engineering. Round bars also offer superior strength and durability due to their uniform composition and absence of sharp edges, making them ideal for load-bearing purposes.
- Q: What are the advantages of using carbon steel round bars?
- There are several advantages to using carbon steel round bars in various applications. Firstly, carbon steel round bars are known for their high strength and durability. They have a high tensile strength, making them suitable for heavy-duty applications that require withstanding significant loads and pressures. This makes carbon steel round bars ideal for use in construction, manufacturing, and engineering industries. Another advantage of carbon steel round bars is their excellent machinability. They can be easily cut, drilled, and shaped into various forms, making them versatile for different projects. This also allows for precise and accurate fabrication, ensuring that the desired specifications and dimensions are achieved. Carbon steel round bars also offer good weldability, which means they can be easily joined together using various welding techniques. This makes them a preferred choice in the construction of structures and machinery that require strong and secure connections. Additionally, carbon steel round bars are relatively cost-effective compared to other materials with similar properties. They offer an excellent balance between performance and affordability, making them a popular choice for many applications. Moreover, they have a long lifespan and require minimal maintenance, resulting in cost savings over time. Carbon steel round bars are also highly resistant to corrosion and wear. This is due to the presence of carbon and other alloying elements, which enhance their resistance to external factors such as moisture, chemicals, and abrasion. As a result, carbon steel round bars can withstand harsh environments and prolonged exposure to various elements, making them suitable for outdoor applications. Lastly, carbon steel round bars are readily available in the market due to their widespread use and popularity. They are available in various sizes, grades, and specifications, allowing users to select the most suitable option for their specific needs. This availability ensures ease of sourcing and reduces lead times for projects. In conclusion, the advantages of using carbon steel round bars include their high strength, excellent machinability, good weldability, affordability, corrosion resistance, and availability. These qualities make carbon steel round bars a reliable and versatile choice for a wide range of applications in different industries.
- Q: Can steel round bars be used in the manufacturing of garden tools?
- Yes, steel round bars can be used in the manufacturing of garden tools. Steel is a durable and robust material that offers strength and resistance, making it suitable for various garden tools such as shovels, rakes, hoes, and spades. The round bars can be shaped and formed to create the desired tool design and functionality, ensuring durability and longevity in outdoor conditions.
- Q: Can steel round bars be used in the power generation industry?
- Yes, steel round bars can be used in the power generation industry. Steel round bars possess high strength and durability, making them suitable for various applications within the industry, such as supporting heavy machinery, constructing power plant structures, and manufacturing turbine components. Additionally, steel's resistance to corrosion and ability to withstand extreme temperatures make it an ideal material choice for the power generation industry.
- Q: Can steel round bars be used for making camshafts?
- Camshafts can indeed be made using steel round bars. In fact, steel is a widely used material for camshaft production because of its exceptional strength, durability, and resistance to wear and fatigue. By machining and shaping steel round bars, they can be transformed into the desired profile, which makes them ideal for manufacturing camshafts. These camshafts are crucial components in internal combustion engines. The specific type of steel chosen will depend on the application and performance requirements. Typically, alloy steels or carbon steels with superior mechanical properties are used. In summary, steel round bars provide a reliable and cost-effective option for producing camshafts that can endure the demanding conditions of engine operation.
- Q: Can steel round bars be used for making gears?
- Certainly! Gears can indeed be made using steel round bars. The reason for their widespread use in gear manufacturing lies in their outstanding strength, longevity, and ability to withstand damage. These bars can be processed, subjected to heat treatment, and molded into different types of gears, including spur gears, helical gears, and bevel gears. Steel round bars provide exceptional accuracy and dependability, making them ideal for applications demanding durable and high-performing gears, like automotive transmissions, industrial machinery, and power transmission systems.
- Q: Are steel round bars suitable for the production of axles?
- Indeed, axles can be produced using steel round bars. Steel, being a robust and long-lasting material, offers exceptional strength and stability, rendering it an optimal selection for axles. The circular form of these bars facilitates effortless machining and shaping processes, guaranteeing an accurate and efficient axle design. Moreover, steel round bars possess commendable resistance against wear, fatigue, and impact, indispensable attributes for axles that must endure demanding loads and harsh environments. All in all, steel round bars are a dependable and extensively employed material in diverse industries, including automotive, manufacturing, and construction, for axle production.
- Q: What are the different types of surface treatments for steel round bars?
- There are several types of surface treatments commonly used for steel round bars. These include hot-dip galvanizing, electroplating, painting, powder coating, and black oxide coating. Each treatment offers specific benefits and is chosen based on the desired level of corrosion resistance, aesthetics, and durability required for the application.
- Q: Are steel round bars suitable for high-stress applications?
- Yes, steel round bars are suitable for high-stress applications. Steel round bars possess high tensile strength, durability, and resistance to deformation, making them ideal for withstanding heavy loads and intense pressure in various industries such as construction, manufacturing, and engineering. The robust nature of steel round bars ensures their suitability for high-stress applications.
- Q: Can steel round bars be hardened?
- Yes, steel round bars can be hardened. Hardening is a process in which the steel is heated to a specific temperature and then rapidly cooled, commonly known as quenching. This rapid cooling causes the steel to undergo a transformation, resulting in increased hardness and strength. The hardening process is typically followed by tempering, which involves reheating the hardened steel to a lower temperature to reduce its brittleness and further enhance its toughness. Hardening is commonly used in the manufacturing of tools, machine parts, and other applications where high strength and durability are required.
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Quenched and Tempered Steel SAE4140 SAE4145 SAE4340 SCM440 42CrMoS4 708M40 Steel Round Bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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