Welcome to Maduka Metals, your trusted partner in Abuja for high-quality steel solutions. We take pride in supplying robust and reliable materials, including the exceptional ST 52.3 Round Bar. Known for its superior strength and durability, this round bar is a cornerstone for builders, engineers, and fabricators across Nigeria. We understand that your projects demand materials you can count on, which is why we ensure our ST 52.3 is sourced and handled to meet the highest standards, ready to become the backbone of your most ambitious creations.
The ST 52.3 round bar is crafted from a fine-grained structural steel that offers an excellent balance of strength and workability. Its composition gives it a minimum yield strength of 355 MPa, meaning it can handle significant stress and heavy loads without deforming. This toughness, combined with good weldability and formability, makes it a highly versatile material. It’s the kind of steel that responds well to machining and fabrication, allowing you to shape it for demanding applications without compromising its inherent resilience.
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 the ST 52.3 round bar at the heart of countless essential structures and machines. It’s the preferred choice for constructing sturdy building frames, reliable bridges, and durable industrial platforms. Beyond construction, it’s indispensable for crafting heavy-duty axles, shafts, and gears in machinery, as well as forming the strong skeletons for various vehicles and agricultural equipment. Its reliability makes it ideal for any project where safety and longevity are non-negotiable, providing the silent, strong support that keeps everything from towering cranes to complex conveyor systems operating smoothly day after day.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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