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1045 Carbon Steel Round Bar Hot Rolled High Strength OD 6-630mm for Structural Applications
Product Details
| Model Number | 1045 S45C | Surface Treatment | Polished |
|---|---|---|---|
| Alloy Type | Non-alloy | Outer Diameter | OD 6-630mm |
| Carbon Content | 0.42-0.5% | Silicon Content | 0.17-0.37% |
| Manganese Content | 0.5-0.8% | Tensile Strength | 585 MPa |
| Yield Strength | 450 MPa | Elongation At Break | 12% |
| Hardness Brinell | 163 HB | Density | 7.85 G/cm3 |
| Thermal Conductivity | 51.9 W/mK | Thermal Expansion | 11.2 µm/m°C |
| Modulus Of Elasticity | 200 GPa | ||
| Highlight | Hot Rolled Steel Round Bar,High Strength Carbon Steel Round Bar,OD 6-630mm 1045 Steel Round Bar |
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Product Description
1045 S45C Carbon Steel Round Bar
Hot rolled plain round steel bars with high carbon content for industrial applications requiring strength and durability.
Product Overview
AISI 1045 steel round bar is a high carbon steel under American standard, classified as quenching and tempering steel with exceptional strength properties. This versatile material can be produced as hot rolled round bars, square bars, cold-drawing bars, and forged bars to meet various industrial requirements.
Key Applications
- Moving parts requiring high strength: plunger of air compressor and pump, rolled shaft
- Heavy machinery components: connecting rod, endless screw, gear rack, dowel
- Wear resistant parts after heat treatment: crank axle, machine tool shaft, transmission shaft
- Industrial, machine, and tool applications requiring good strength and ductility
Chemical Composition
| Grade | C | Si | Mn | Cr | P | S | Ni | Cu |
|---|---|---|---|---|---|---|---|---|
| AISI 1045 | 0.42-0.5 | 0.17-0.37 | 0.5-0.8 | ≤0.25 | ≤0.035 | ≤0.035 | ≤0.3 | ≤0.25 |
Mechanical Properties
Tensile Strength
585 MPa
Yield Strength
450 MPa
Elongation at Break
12%
Hardness (Brinell)
163 HB
Modulus of Elasticity
200 GPa
Shear Modulus
80 GPa
Thermal Properties
| Property | Value |
|---|---|
| Thermal Conductivity | 51.9 W/mK |
| Thermal Expansion Coefficient | 11.2 µm/m°C |
| Density | 7.85 g/cm³ |
International Equivalents
| Standard | Grade | C | Si | Mn | P | S |
|---|---|---|---|---|---|---|
| ASTM A29/29M | 1045 | 0.43-0.50 | / | 0.60-0.90 | ≤0.040 | ≤0.050 |
| DIN W-Nr | 1.1191/CK45 | 0.42-0.50 | ≤0.40 | 0.50-0.80 | ≤0.035 | ≤0.035 |
| GB/T | 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 |
| JIS | S45C | 0.42-0.48 | 0.15-0.35 | 0.60-0.90 | ≤0.030 | ≤0.030 |
Available Steel Grades
| Steel Series | Representative Steel Type |
|---|---|
| Carbon Steel Series | AISI 1020, 1045, A36, S355JR, S355JO |
| Petroleum Machinery Series | AISI 4150, AISI 4140, AISI 4130, 30CrMo, 4145H |
| Tool Mold Series | 1.2714, 5CrMnMo, 5CrNiMoV, 1.2738, 1.2311, 1.2312 |
| Bearing Series | 52100, GCr15, SUJ2 |
| Wind Power Series | 18CrNiMo7-6, 17CrNiMo6, 1.6582, 1.6587, SAE8620 |
Forged Steel Dimensions
- Round Bar: Φ85mm ~ 1200mm
- Square Bar: 150×150 - 800×800mm
- Flat Blocks: (150mm-800mm) × (200mm-800mm)
- Custom Shafts and Rings: According to customer drawings
Frequently Asked Questions
Q: How long is your delivery time?
A: Generally 5-10 days for stocked goods, or 15-20 days for non-stocked items depending on quantity.
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer samples free of charge, but freight costs are not included.
Q: What is your MOQ?
A: Usually 5 tons. Smaller quantities may have slightly higher prices, while larger quantities receive better pricing.
Q: How to buy your ideal products?
A: Provide your drawing for production, or we can design according to your requirements if you don't have a clear plan.
Q: How to get an accurate quotation?
A: Provide product detail size & length, product quantities, and product material grade.
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