Chuck Metals stands out as a top manufacturer and supplier in Singapore, specifically on Pulau Ujong, where they offer high-quality ST 52.3 Round Bars that excel in both mechanical and structural applications. These bars are celebrated for their impressive strength, toughness, and excellent weldability, all crafted to meet international quality standards and precise dimensional tolerances. Whether you’re in need of parts for machinery, automotive components, construction frameworks, or heavy-duty engineering projects, ST 52.3 Round Bars from Chuck Metals are your go-to choice for durability and reliability.
Made primarily from carbon, manganese, and silicon, with a few trace elements to boost performance, these low-alloy structural steel bars deliver a minimum yield strength of about 355 MPa along with outstanding elongation properties. They offer superior toughness, high tensile strength, good machinability, and the ability to handle dynamic loads, making them perfect for both static and high-stress applications.
Alloy 20 Round Bar Specification : ASTM B473 , ASME SB473
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
| Carbon Steel | C | Si | Mn | P | S | Cu | N |
| ST 52 | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | 0,55 | 0,012 |
| The final delivery condition | Cold drawn(Mandatory) BK1) | Cold drawn(Soft) BKW1) | Cold Drawn and Stress Release (BKS) | Anneal (GBK)1) | Normalizing (NBK)1) | |||||||||
| Kinds of Steel | Tensile | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation | ||
| Steel grade | Material number | No less than | ||||||||||||
| Rm | A5 | Rm | A5 | Rm | ReH | A5 | Rm | A5 | Rm | ReH2) | A5 | |||
| N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | |||
| St52 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490~630 | 355 | 22 | |
|
DIN |
EN |
JIS |
ISO |
ASTM |
GB |
|
|
ST52-3 |
S355JR |
SM490A |
FE510B |
E36-2 |
A572Gr.50 |
Q345B |
Considerations for selecting ST 52.3 Round Bar include its mechanical properties, tensile strength, corrosion resistance, application requirements, and cost-effectiveness.
ST 52.3 Round Bar generally does not require corrosion protection coatings for indoor applications but may need coatings for outdoor or harsh environments to enhance its durability.
ST 52.3 Round Bar can be used for underground applications, but it may require additional corrosion protection to ensure longevity in moist or aggressive environments.
You’ll find these bars commonly used in machine building, shipbuilding, bridge construction, cranes, and structural frameworks, as well as in automotive chassis, hydraulic systems, and pressure vessels. Their unique blend of strength, formability, and weldability ensures they perform reliably even in the toughest industrial settings.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
Copyright 2024 Chuck Metals. All rights reserved