


Quality Carbon Structural Steel Forged Round‑Bar Forgings
Introduction:
Quality carbon steel forged round bars are manufactured via hot‑forging process. The forging process refines grain structure, eliminates internal casting defects, and delivers high density, excellent tensile strength and impact toughness. This product series covers grades from 20# to 55# and 16Mn to 65Mn, suitable for heavy‑load mechanical parts under complex working conditions.
Representative Grades
Representative Grades: 20#‑55#, 16Mn‑65Mn
• 20#‑35#: Low‑carbon steel, good plasticity and weldability, for low‑to‑medium‑strength structural parts.
• 40#‑55#: Medium‑carbon steel, high strength and hardness after heat treatment, ideal for transmission and load‑bearing components.
• 16Mn: Low‑alloy manganese steel, superior toughness, widely used for pressure‑vessel‑related parts.
• 65Mn: High‑manganese carbon steel, outstanding elasticity and wear resistance, for spring and wear‑resistant components.
Grade Description
-
01
20#‑55# are standard quality carbon structural steels. As carbon content increases, strength and hardness rise while ductility decreases correspondingly.
-
02
16Mn and 65Mn are manganese‑alloyed carbon steels. Manganese improves hardenability, tensile strength and wear resistance. Delivery conditions such as normalized, quenched & tempered can be customized per customer requirements.
Product Specifications
|
Item |
Specification |
|
Product Type |
Forged Round Bar |
|
Diameter Range |
Φ200‑Φ1200mm |
|
Custom Length |
Available upon request |
|
Surface Condition |
Forged / Machined surface |
|
Delivery State |
Normalized / Quenched & Tempered (customizable) |
Core Advantages
1. Forged microstructure removes porosity and shrinkage cavities, high material compactness and reliability.
2. Strict control of chemical composition and mechanical properties, stable batch‑to‑batch performance.
3. Wide diameter range, support custom‑made dimensions per drawings.
4. Multiple heat‑treatment options to match different service loads.
5. Complete material test certificates are provided, third‑party inspection is acceptable.
Main Application Fields
-
Pressure vessels
-
Agricultural machinery
-
Construction machinery
-
Metallurgical equipment
-
Mining machinery
Packaging & Services
- 1. Packaging: Anti‑rust oil coating on surface, steel strap bundling, wooden case or steel‑frame packing for sea‑freight export.
- 2. Services: Custom forging according to customer drawings; support third‑party inspection; supply material test reports. We offer optional machining, heat‑treatment and cutting services, together with after‑sales technical support.
Send Message
Products +
Contact Us
- WhatsApp: +86-185 9567 2991
- Email: martinliu@rongtianmetal.com
- Tel: +86-185 9567 2991
- Address: 8F, Bldg 2, Jinke Zhihui Valley No. 65 Hongyuan Rd., Jinshui Dist. Zhengzhou, China.




