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Our firm focuses on providing a wide selection of Alloy Steel Bars, procured from trusted suppliers celebrated for their premium alloy steel production. These bars play a key role in fabricating a variety of components, delivering flexibility in dimensions, grades, and standards to meet the varied needs of our clients. Highly in demand across the construction and engineering fields, our superior Alloy Steel Bars are valued for their outstanding resistance to corrosion and abrasion. Through the addition of alloys, the steel’s hardenability is boosted during heat treatment, enhancing mechanical properties consistently throughout the whole cross-section
| Specifications | ASTM A182, ASME SA182 |
| Dimensions | ASTM, ASME and API |
| Standard | JIS, AISI, ASTM, GB, DIN, EN, etc. |
| Round Bar Size | 3mm~ 800mm. |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm. |
| Flat Bar Size | 2mm ~ 100mm. |
| Hex Bar Size | 2mm ~ 100mm. |
| 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. |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 415 min | 205 min | 30 % |
| 380 min | 205 min | 30 % |
| 415 min | 220 min | 30 % |
| Grade | C | Mn | P | S | Si | Cr | Mo |
| Alloy Steel P5 | 0.05-0.15 | 0.30-0.60 | 0.025 max | 0.025 max | 0.50-1.00 | 1.00 – 1.50 | 0.44-0.65 |
| Alloy Steel P9 | 0.10-0.20 | 0.30-0.61 | 0.025 max | 0.025 max | 0.10-0.30 | 0.50-0.81 | 0.44-0.65 |
| Alloy Steel P11 | 0.05-0.15 | 0.30-0.60 | 0.025 max | 0.025 max | 0.50-1.00 | 1.00 – 1.50 | 0.44-0.65 |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for all your piping requirements. With cutting-edge production facilities strategically situated in the New Zealand, we hold an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
Get in touch with us for a fast quote tailored to your needs.
We supply these Alloy Steel Bars conforming to DIN, ISO, JIS or ANSI Standard.
Alloy Steel Bars serve applications as varied as the industries that rely on them, led chiefly by the aerospace, railway, construction and automotive sectors, along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Yes,alloy steel bars may be prone to galvanic corrosion when they touch dissimilar metals within an electrolyte such as moisture or salt water. The level of risk hinges on the alloy’s makeup, exposure to the electrolyte, and contact with unlike metals. Ways to reduce this include selecting compatible metals, applying isolation methods, accounting for sound design, and adding corrosion defenses such as coatings or cathodic protection systems. Routine inspection and upkeep are essential for tackling corrosion problems without delay.
Yes,alloy steel bars can be joined by welding and shaped through machining when the right methods and tools are applied. That said, how easily they machine or weld can differ based on the alloy makeup and the heat treatment the bars have undergone. Preheating, applying heat treatment after welding, and choosing the right welding electrodes or cutting tools can all contribute to good outcomes.
Although alloy steel bars typically provide greater corrosion resistance than carbon steel bars, they may still rust under specific circumstances, particularly in aggressive environments or when subjected to corrosive chemicals. Selecting the right alloy composition and using protective coatings can assist in reducing corrosion problems.
Yes,Alloy steel bars are suitable for underground applications thanks to their corrosion resistance and high strength characteristics. They provide durability and dependability in demanding underground conditions, which makes them appropriate for a range of industrial and construction uses where withstanding corrosion and heavy mechanical stress is necessary.
Email: sales@koasteel.nz