Buy 1045 Carbon Steel Coil (Cold Rolled, HRC 15-20). High strength, precision finish, great machinability for shafts, gears & engineering components.
The 1045 Carbon Steel Coil (Cold Rolled, HRC 15-20) offers a perfect combination of medium carbon strength, excellent machinability, and precision surface finish. Designed specifically for manufacturing applications where both strength and dimensional accuracy are critical, this cold rolled coil is widely used in industries such as automotive, machinery, toolmaking, and engineering.
The HRC 15-20 hardness rating indicates a softer, more machinable condition, ideal for parts that require further processing like machining, forming, and heat treating.
Medium Carbon Strength
1045 provides superior mechanical strength compared to low carbon steels, suitable for parts requiring wear resistance and higher load-bearing capacity.
Cold Rolled Precision
Cold rolling delivers tighter tolerances, improved surface finish, and enhanced dimensional accuracy.
Controlled Hardness (HRC 15-20)
Soft enough for excellent machinability while maintaining core strength.
Excellent Machinability & Workability
Easily cut, drilled, turned, and milled; suitable for high precision CNC operations.
Heat Treatment Capability
Can be further heat-treated to increase hardness, tensile strength, and wear resistance after machining.
Shafts and axles
Gear blanks
Couplings and connecting rods
Hydraulic components
Pins, studs, and bolts
Machine tool parts
General-purpose mechanical components
| Property | Specification |
|---|---|
Grade | 1045 Carbon Steel |
Standard | ASTM A29, SAE J403 |
Carbon Content | 0.43–0.50% |
Manganese Content | 0.60–0.90% |
Hardness | HRC 15-20 |
Tensile Strength | 570–700 MPa |
Yield Strength | 440 MPa (min) |
Elongation | 16% min |
Surface Finish | Cold Rolled (Bright Finish) |
Coil Widths | 12mm to 1500mm (custom widths available) |
Coil Thickness | 0.5mm to 12mm |
Coil Weight | Custom per order |
Tolerance | Tight dimensional tolerances per ASTM specifications |
Formability | Excellent (in cold rolled condition) |
Weldability | Fair (preheating recommended) |
ASTM A29/A29M
SAE J403
ISO 9001 Certified Production
Full Mill Test Certificates (MTC) Provided
RoHS & REACH Compliant
Store indoors, away from moisture
Keep coils sealed to prevent surface oxidation
Use appropriate coil handling equipment to prevent physical damage
High strength and wear resistance for demanding applications
Excellent surface finish for precision manufacturing
Ideal hardness for further machining and heat treatment
Consistent mechanical properties across coils
Custom sizes and slit coils available
Faster production and reduced finishing costs
It’s used for precision machined parts like shafts, gears, couplings, and machine components that require medium carbon strength and excellent machinability.
This indicates the Rockwell Hardness (HRC) range. 15-20 HRC is considered soft for 1045, making it excellent for machining before final hardening.
Yes. After machining, 1045 can be heat-treated (quenched and tempered) to achieve higher hardness and tensile strength.
Cold rolling provides better dimensional accuracy, smoother surface finish, and improved mechanical properties compared to hot rolled.
Absolutely. We can slit, cut-to-length, and customize coil sizes per your project requirements.
It is weldable, but preheating and post-weld heat treatment are recommended to reduce the risk of cracking.
These Product are packed using seaworthy export packaging to ensure protection during transit. Each coil is wrapped with waterproof paper, plastic film, and steel sheet, secured with high-tensile steel straps, and placed on wooden pallets for stability. Edge protectors are used to prevent damage. These Product are safely loaded for efficient domestic and international delivery, ensuring they arrive in perfect condition.
Generally, our delivery time is within 7-45 days, if there is a great demand or special circumstances, it may be delayed.
Each piece of products is manufactured by certified workshops, inspected by Linxu piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.
Yes absolutely we accept.
The sample could can provide for customer with free, but the courier freight will be covered by customer account.
Yes, we promise to provide best quality products and delivery on time. Honesty is our company’s tenet.
We are professional manufacturer with rich experience, and our company also is a very professional a trade company for steel products. We can also provide a wide range of steel products.
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