C55 carbon steel round bar is used a lot in making machines and for industry stuff when you need something strong that won't wear down easily. It's just plain carbon steel, usually made to EN 10083 standards. People like it because it's got a decent mix of strength, hardness, and it's not too hard to work with if you heat it up right.
It's got more carbon in it than your average low-carbon steel, usually around 0.52–0.60%. That carbon helps it get tougher and stronger if you heat it and cool it the right way. But it's still strong enough to use for parts that need to hold up. C55 round bars are usually rolled or forged when they're hot, then cooled down carefully or heated to make sure they're consistent all the way through and work well.
You often see C55 carbon steel rod used for things like shafts, pins, gears, and bolts – basically, anything that takes a beating or gets rubbed a lot. It reacts well to heat, so it's a good option if you want to make something stronger without switching to pricier alloy steels. We're a reliable supplier, so we make sure our measurements are right so it's easy to use for your projects.
Product Details
Specifications & Technical Parameters
| Standards | EN 10083-2 C55,DIN 1.1203,JIS S55C (equivalent),ASTM A29 (similar grade reference) |
| Diameter range | 10 mm – 300 mm |
| Standard length | 3000 mm – 6000 mm |
| Tensile Strength | 700 – 850 MPa |
| Yield Strength | ≥450 MPa |
| Elongation | ≥12% |
| Hardness | 200 – 255 HB |
Typical chemical composition(%)
| Carbon (C) | 0.52 – 0.60 |
| Manganese (Mn) | 0.60 – 0.90 |
| Silicon (Si) | 0.15 – 0.35 |
| Phosphorus (P) | ≤0.025 |
| Sulfur (S) | ≤0.035 |
Features and Advantages
Balanced Strength and Toughness
C55 Steel Rod is stronger and harder than weaker steels like C45 after you heat it. It's good for parts that need to handle heavy stuff or resist wear and tear without bending too much.
Stable Machinability in Annealed Condition
C55 round bars are easy to machine when they're soft. You can cut, drill, and shape them without ruining your tools, which speeds up making stuff.
Good Heat Treatment Response
C55 steel changes well when you heat and cool it. Companies can change how strong or hard it gets based on what they need, balancing hardness and toughness so it lasts.
Cost-Effective Alternative to Alloy Steel
C55 works well enough for many jobs without costing extra for special metals. It's a budget-friendly choice for parts that don't need super steel performance.
Applications
Our Services
At Jiangsu CunRui Metal Products, we're all about getting you exactly what you need when it comes to C55 carbon steel round bars.
- We can cut the bars to whatever diameter and length works best for your project.
- We've got different delivery options depending on what you're after – annealed, normalized, or quenched and tempered.
- Need some surface work done? We can peel, grind, or give the bars a black finish to get them just right.
- We also do mechanical testing and chemical analysis, so you know exactly what you're getting, and we can trace the materials back to the source.
Finally, we can pack them up in a way that makes sense for you, whether that's in containers or for bulk shipment.
Our Strength
We're good at supplying C55 Steel Rod because we have solid production control and know the industry inside and out. We stick with steel mills we trust for the long haul, so our material quality is always consistent. Our team gets what you need for machining and heat treatment, so we suggest the best delivery options based on how you'll actually use the steel, not just some random specs. Plus, we're quick with inventory and shipping, so you can count on us for on-time delivery and straightforward advice.
FAQ
Q: Can C55 Carbon Steel Round Bar be welded?
A: Welding is possible but requires proper preheating and post-weld heat treatment due to the higher carbon content, to reduce the risk of cracking.
Q: In what condition is C55 steel usually supplied?
A: It can be supplied in annealed, normalized, or quenched and tempered condition depending on customer requirements and application.
Q: Is C55 suitable for precision machining?
A: Yes. When supplied in annealed or peeled condition, C55 offers stable machinability for precision components.
Q: Do you provide material test certificates?
A: Yes. We provide mill test certificates and can arrange third-party inspection reports if required.
Q: Can you supply small batch or customized orders?
A: Yes. We support both standard orders and customized quantities, including special diameters and cut lengths.
Hot Tags: c55 carbon steel round bar, China c55 carbon steel round bar manufacturers, factory, A105 Carbon Steel Bar, ASTM A105 Carbon Steel Bar, A36 Carbon Steel Bar, ASTM A36 Carbon Steel Bar, 1018 Carbon Steel Bar, ASTM A105 Bar
