Maduka metals are well established in the city of Abuja, Nigeria. The company is very renowned as one of the most reliable manufacturers and distributors of Alloy Steel AISI 4340 Bars and Rods, which are fabricated to very high standards of quality. Maduka Metals, the name which is identified with precision engineering and quality of raw materials, is producing carbon steel products that are not only long-lasting but also have high performance, so they are compatible with heavy industrial applications. Being quality conscious, Maduka Metals is always on their toes to ascertain global standards and customer specifications in every single bar and rod. Their modern production methods coupled with the quality check from start to finish of the processes have made them the first preference for customers across the automotive, aerospace, construction, and heavy machinery industry.
The main elements of Alloy Steel AISI 4340 Bars and Rods are nickel, chromium, and molybdenum, and these have a significant effect on the steel’s enhanced strength, toughness, and hardenability. Chang-In Carbon ranges from 0.38 to 0.43, Nickel from 1.65 to 2.00%, Chromium from 0.70 to 0.90%, and Molybdenum from 0.20 to 0.30% are typical compositions for these steels. The alloys can reach a tensile strength (Rm) of up to 1080 MPa, have a good fatigue limit and are very tough even when the cross-section is large. Besides, the alloys are good ductile materials and have high wear resistance and the ability to withstand shock impact, thus, they can be used in situations where they have been heat treated or quenched and tempered.
| Sizes | 2-100mm A/F |
|---|---|
| Tolerance | H9, H8, H10, K12, H13K9, K10, H11, H12, K11 |
| Round bar Sizes | Diameter: 3-~800mm |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged, Rod |
| Processing | Bar cutting to 650mm |
| Surface | Bright, Hot Rolled Pickled, Sand Blasting Finished, Hairline, Cold Drawn, Polished suppliers |
| Condition | Hardened and tempered, annealed |
| Form | Precision Square, Ingot, T-Bar, Rod, Round, Welding Rod, I/H Bar, Flat Bar, Blocks, Rings, Rectangle, Hex (A/F), Hollow, Threaded, Profiles, Ground Bar, Channel Bar, Billet, Triangle, Round Rod, Half Round Bar, Forging etc. |
| Square bar Sizes | 4 to 100mm |
| Finish | Hot rolled annealed, Bright, smooth turned, Polish, Rough Turned, Cold (bright) drawn, centreless ground, Grinding, peeled, hot rolled, slit rolled edge, Centreless Ground & Black. |
| Flat bar Sizes | Width: 10 – 500 millimeter Thick.: 2 to 100 millimeter |
| Element | Composition |
|---|---|
| C% | 0.38/0.43 |
| Mn% | 0.60/0.80 |
| P% | 0.035 max |
| S% | 0.040 max |
| Si% | 0.20/0.35 |
| Ni% | 1.65/2.00 |
| Cr% | 0.70/0.90 |
| Mo% | 0.20/0.30 |
| Property | Value |
|---|---|
| Tensile Strength | 850-1000 N/mm 2 |
| Elongation | 13% |
| Hardness | 250-350 HB |
Alloy Steel AISI 4340 is commonly used in aerospace, automotive, and heavy machinery applications due to its excellent strength, toughness, and fatigue resistance. It's ideal for manufacturing shafts, gears, and structural components.
AISI 4340 offers high tensile strength, excellent toughness, and good wear resistance. It is known for its ability to withstand high-stress and high-impact conditions.
Yes, AISI 4340 can be heat-treated to enhance its hardness and strength, making it highly adaptable for different engineering requirements.
These bars and rods of 4340 steel alloy find a wide range of uses in various sectors that only consider structural parts of high strength and long life span. One of the uses is the production of parts for aircraft such as landing gears which provide the support during the landing, automotive components such as crankshafts, connecting rods, and transmission shafts, as well as heavy-duty gears. Besides that, they are also included in instruments for oil and gas drilling, defense equipment, and the parts of a machine that suffer high stress and fatigue. First of all, they are chosen for this type of work, engineering, and performance-oriented tasks worldwide because they possess excellent mechanical properties and are reliable under very tough situations.
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
Copyright 2024 Maduka Metals. All rights reserved
