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45# Carbon steel pipe
ZHONG RUN
PRODUCT INTRODUCTION
| Product Name | 45# Carbon steel pipe |
| (O.D) Outer Diameter | 20MM-1219MM |
| Wall thickness | 0.6MM-20MM |
| Length | 1M, 4M, 6M, 8M, 12M (accroding to the buyer's request) |
| Ends | Plain, Beveled, Thread With Couplings Or Sockets; Plastic Caps And Steel Rings Can Be Provided If Possible |
| Standard | GB/T3091-2001 , BS 1387-1985 , DIN EN10025 , EN10219 , JIS G3444:2004 , ASTM A53 SCH40/80/STD , BS- EN10255-2004 |
| Grade | Q195/Q215/Q235/Q345/S235JR/GR.B-D/STK500 |
| Technique | Hot Rolled Or Cold Rolled ERW |
| Package | Covered With Tarpaulin, Containers Or In Bulk |
| Certification | CE, BV, SGS, ISO9001, API |
| Delivery Time | stock or Usually within 10-45 days after receipt of advance paymen |
The 45# carbon steel pipe features a carbon content of approximately 0.45%, along with minimal manganese and silicon, making it a premium carbon structural steel with low sulfur and phosphorus. According to GB/T14975-2002, it can be processed through hot-rolling or cold-drawing, and it is recommended to undergo heat treatment at specific temperatures: normalizing at 850°C, quenching at 840°C, and tempering at 600°C.
Known for its low hardness and excellent machinability, 45# steel is ideal for applications in molds, including templates, pins, and guide posts, though heat treatment is essential. Post-quenching hardness can exceed HRC55, reaching up to HRC62 before tempering, with practical applications generally capping at HRC55 (high-frequency quenching yields HRC58).
Avoid carburizing and quenching processes, as they can lead to hard and brittle martensite, negating the benefits of heat treatment. After proper quenching and tempering, 45# steel exhibits strong mechanical properties, making it suitable for critical structural components like connecting rods, bolts, gears, and shafts that endure alternating loads. For enhanced surface hardness, consider tempering combined with surface quenching.
Carburizing is recommended for heavy-duty components requiring a wear-resistant surface and an impact-resistant core. This process increases surface carbon content to 0.8–1.2%, achieving high hardness (HRC58–62) while maintaining a lower hardness core for toughness. However, ensure the core carbon content is carefully managed to avoid brittleness.
PRODUCT SHOW
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VIDEO
CLASSIFICATION BY SIZE
| Specification | Available Sizes |
| Standard Lengths | 6000mm,1250mm,2200mm,12000mm |
| Cold Rolling Thickness | 1.0mm,1.2mm, 1.5mm,2.0mm, 2.5mm,3.0mm |
| Hot Rolling Thickness | 3.0mm,4.0mm,6.0mm,8.0mm,10.0mm |
| Common Widths | 1000mm,1219mm,1500mm |
For specific requirements, please contact us.
Hot-rolled carbon steel pipes utilize continuous hot-rolling technology, made from either hot-rolled or cold-rolled steel strips. They can be supplied as flat rectangular plates or coiled sheets, serving diverse applications across construction, automotive, container manufacturing, and home appliances. Notably, they are essential in steel structure construction and automotive manufacturing.
Key features include strong corrosion resistance, excellent surface quality, suitability for deep processing, and cost-effectiveness.
Application Range:
Processed into ordinary cold-rolled steel after annealing.
Galvanized through a pre-annealing treatment in galvanizing units.
Supplied as panels requiring minimal processing.
APPLICATION
Application of 45# Carbon Steel Pipe
Molds and Tooling: The 45# carbon steel pipe is ideal for manufacturing templates, pins, and guide posts due to its excellent machinability, making it a preferred choice for tooling applications.
Structural Components: This type of steel pipe is commonly used in critical structural parts such as connecting rods, bolts, gears, and shafts subjected to alternating loads, thanks to its high strength and durability.
Automotive Industry: The 45# carbon steel pipe is frequently utilized in components within the automotive industry that require high strength and durability to withstand the demanding conditions of vehicle operation.
Construction: In the construction sector, the 45# carbon steel pipe is employed in various applications where reliable structural integrity is crucial, ensuring the stability and safety of buildings and infrastructure.
Machinery Manufacturing: Due to its combination of toughness and wear resistance, the 45# carbon steel pipe is commonly used in the manufacturing of machinery parts that require durability and the ability to withstand wear and tear in demanding operating environments.
