Sadiki Metals is a well-respected manufacturer and supplier located in Kinshasa, Congo, specializing in high-quality ST 52.3 Round Bars. The company is committed to delivering strong and dependable steel bars that are recognized for their outstanding strength, toughness, and machinability. Crafted from top-grade carbon steel and utilizing advanced processing methods, these round bars perform exceptionally well under high stress and pressure. Sadiki Metals caters to various industries, including construction, automotive, oil and gas, and heavy engineering, providing ST 52.3 Round Bars that adhere to international standards for quality, durability, and mechanical precision.
ST 52.3 Round Bars are made up of carbon (0.20–0.22%), manganese (1.60–1.80%), silicon (0.55%), phosphorus (≤0.025%), and sulfur (≤0.025%), along with trace elements that boost strength and ductility. This specific composition results in high tensile and yield strength, coupled with excellent impact resistance. Mechanically, ST 52.3 showcases superior elongation, good machinability, and high fatigue strength, ensuring reliability even under dynamic loads. It excels in both high-pressure and structural applications that demand strength and stability.
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.
These ST 52.3 Round Bars are extensively used in industries that require high-strength and durable components. They are perfect for creating shafts, axles, connecting rods, hydraulic components, and machine parts. Additionally, these bars find their place in construction equipment, automotive assemblies, oil rigs, and industrial tools where toughness and precise dimensions are essential. Thanks to their excellent weldability, machinability, and fatigue resistance, ST 52.3 Round Bars are the go-to choice for engineering and structural applications that require long-lasting performance and reliability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sadiki Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kinshasa, Congo
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