Contact Platform Support
Help CenterCarbon Steel Round Bar Used in Construction Machinery ASTM A572 Gr50
Product Spotlights
Related Products
-
1045 Carbon Steel Bar 5.5mm-100mm Round Rod With Mill Test ReportNegotiableMOQ: 1 Ton -
Carbon Steel Bar With 1 Year Warranty and Mill Test Report IncludedNegotiableMOQ: 1 Ton
-
4140 Alloy Steel Bar 1.5m-6m Length Hot Rolled Carbon Steel BarNegotiableMOQ: 1 Ton
-
Carbon Steel Bar for Shaft Manufacturing AISI 1045 Turned GroundNegotiableMOQ: 1 Ton
-
ASTM A36 Carbon Steel Round Bar 10mm-200mm With Mill Test ReportNegotiableMOQ: 1 Ton
Welcome to Hemaokang Steel (Shandong) Co., Ltd., a reliable supplier of high-quality carbon steel products. Our Carbon Steel Round Bar Used in Construction Machinery ASTM A572 Gr50 is engineered to meet the rigorous demands of heavy equipment and structural applications. With an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we ensure every round bar delivers consistent performance and durability. This product is an ideal choice for manufacturers seeking robust, cost-effective steel solutions for construction machinery components.
Our ASTM A572 Gr50 round bar offers an excellent balance of strength, weldability, and machinability. It is specifically designed for use in construction machinery such as excavators, bulldozers, cranes, and loaders, where high tensile strength and resistance to wear are critical. Below we detail the key features and technical specifications that make this product stand out.
Key Features & Advantages
- High Tensile Strength: Minimum yield strength of 345 MPa (50 ksi) ensures reliable performance under heavy loads.
- Excellent Weldability: Low carbon content and controlled chemistry allow for easy welding without preheating in most applications.
- Superior Toughness: Good impact resistance at low temperatures, suitable for outdoor construction environments.
- Dimensional Accuracy: Manufactured to tight tolerances (typically ±0.05mm on diameter) for consistent machining results.
- Versatile Surface Options: Available in black, bright, polished, or turned finishes to meet your specific requirements.
- Customizable Lengths & Diameters: We offer a wide range of sizes from 10mm to 300mm diameter, with lengths up to 12 meters or as per your order.
- ISO9001 Certified Quality: Our production process is strictly controlled to ensure every batch meets international standards.
Technical Specifications
| Parameter | Value |
|---|---|
| Grade | ASTM A572 Gr50 |
| Yield Strength (min) | 345 MPa (50 ksi) |
| Tensile Strength (min) | 450 MPa (65 ksi) |
| Elongation (min) | 21% in 200 mm |
| Carbon Content (max) | 0.23% |
| Manganese Content | 1.35% max |
| Diameter Range | 10mm – 300mm |
| Length | 1m – 12m (customizable) |
| Surface Finish | Black, Bright, Polished, Turned |
| Heat Treatment | As-rolled or normalized (optional) |
Compared to ordinary carbon steel grades, ASTM A572 Gr50 provides higher strength-to-weight ratio, allowing you to reduce material usage without compromising structural integrity. This translates to cost savings and lighter machinery components. Its excellent formability and machinability also contribute to shorter production cycles and reduced tool wear.
Our round bars are suitable for a wide range of construction machinery parts, including but not limited to: shafts, pins, rollers, brackets, frames, hydraulic cylinders, and structural supports. The material is also widely used in bridges, buildings, and other heavy steel structures.
Why Choose Hemaokang Steel?
As a newly established company in 2025, we have already achieved an impressive annual export value of US$50 million to US$100 million, serving customers across North America, South America, Europe, Asia, Africa, and Oceania. Our team of 51–100 experienced professionals is dedicated to providing top-quality steel products and exceptional customer service. We hold ISO9001 certification, ensuring that our production processes and quality management systems meet international standards.
We ship from Qingdao Port, one of China's busiest and most efficient ports, ensuring timely delivery to global destinations. Whether you need a small trial order or a large container shipment, we can accommodate your requirements with flexible terms and competitive pricing.
Contact us today to discuss your specific needs. Our technical team is ready to assist you with material selection, size customization, and any additional processing requirements. Experience the Hemaokang difference—reliability, quality, and value in every shipment.
Frequently Asked Questions
-
Q: What is the minimum order quantity (MOQ) for ASTM A572 Gr50 round bars?
A: Our MOQ is typically 1 ton for standard sizes, but we can accommodate smaller trial orders upon request. Please contact our sales team for details. -
Q: Can you provide third-party inspection certificates?
A: Yes, we can arrange independent inspection by SGS, BV, or other accredited agencies at an additional cost. We also provide our own mill test certificates (MTC) with each shipment. -
Q: What surface treatments are available?
A: We offer black (as-rolled), bright (cold drawn), polished, and turned finishes. If you need a specific surface roughness or coating (e.g., oiled, painted), please let us know. -
Q: Is this material suitable for welding?
A: Yes, ASTM A572 Gr50 has excellent weldability due to its low carbon content. Standard welding procedures for carbon steel can be used. For critical applications, we recommend preheating when the ambient temperature is below 0°C. -
Q: What are the standard lengths available?
A: Standard lengths are 6m and 12m, but we can cut to custom lengths from 1m to 12m as per your requirements. Tolerances are ±50mm for standard lengths. -
Q: Do you offer heat treatment services?
A: Yes, we can provide normalizing or annealing as optional services. However, the standard product is supplied in the as-rolled condition. Please specify your heat treatment needs when placing an order. -
Q: What is the typical lead time for an order?
A: For standard sizes, lead time is 7–15 days after order confirmation. For customized sizes or special finishes, it may take 15–25 days. We will provide a confirmed schedule upon order placement. -
Q: How can I request a quote or sample?
A: Simply send an inquiry with your required diameter, length, quantity, and surface finish. We will respond within 24 hours with a competitive quotation. Samples are available for evaluation, with shipping costs covered by the buyer.
Send Inquiry to This Supplier
You May Also Like
-
AISI 1045 Carbon Steel Bar Hot Rolled 20mm Diameter for Machining ShaftsNegotiableMOQ: 1 Ton
-
S45C Carbon Steel Bar Precision Ground Hardened 0.001mm ToleranceNegotiableMOQ: 1 Ton
-
TGP Steel Bar 4140 Annealed Carbon Steel Rod 1-12 Inch DiameterNegotiableMOQ: 1 Ton
-
Carbon Steel Bar for Automotive Crankshaft and Gear ManufacturingNegotiableMOQ: 1 Ton
-
Custom Length Carbon Steel Bar With Cutting Service and 24-Hour Technical SupportNegotiableMOQ: 1 Ton
-
12 Months Warranty Carbon Steel Bar With Chemical Composition Analysis ReportNegotiableMOQ: 1 Ton
-
Precision Carbon Steel Round Bar Used in Construction Reinforcement BarsNegotiableMOQ: 1 Ton
-
Low Carbon Steel Bar 1018 Cold Drawn 6mm-50mm With Straightness 0.1mm/mNegotiableMOQ: 1 Ton
-
C45 Carbon Steel Round Bar 25mm 50mm 100mm for Hydraulic CylindersNegotiableMOQ: 1 Ton
-
H Beam Steel Structural Profile Standard Compliant Strong Load BearingNegotiableMOQ: 1 Ton
