From the heart of Hamilton’s industrial landscape, Latham Steel has built a reputation as a trusted partner for high-performance materials. We take pride in supplying robust, reliable Alloy Steel F91 Bars, manufactured to meet the most demanding specifications. Our team understands the critical nature of your projects, which is why we ensure every bar we provide delivers the exceptional quality and consistency that New Zealand’s top industries depend on.
The strength of F91 lies in its precise composition, a careful balance of chromium, molybdenum, and vanadium. This specific alloy recipe gives the bars remarkable mechanical properties, including excellent tensile strength and superior resistance to creep. They maintain this integrity even when subjected to intense pressure and high temperatures, making them a fundamentally tough and durable material choice for challenging environments.
|
type |
Alloy Steel ASTM A182 F91 Round Bars |
|
|
Type |
rod, square bar, Round bar, hexagon bar, flat bar, channel bar, angle bar, threaded bar |
|
|
Standards |
Alloy Steel ASTM A182 F91 , A479, A314, GB4226-84, GB/T1220-2007, JISG4311-91, JIS G4318-98, ENÂ 10095-99, GB4226-84, EN10088-3-2005, JIS G3033-2005, etc |
|
|
Surface |
bright round bar, pickled round bar, black round bar |
|
|
Package Details |
Standard seaworthy package(wooden boxes package,pvc package, or other package) |
|
|
Technique |
Forged/Hot Rolled/Cold Drawn/Peeled |
|
|
Range |
Range – 3.17mm to 350mm dia |
|
|
Diameter |
|
|
|
Length |
1m-9m or according to the customer’s requirement |
| Grade | C | Mn | P | S | Si | Ni | Ch | Mo | Cb | N |
|---|---|---|---|---|---|---|---|---|---|---|
| F91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 0.40 | 8.0-9.5 | 0.85-1.05 | 0.06-0.10 | 0.03-0.07 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| F91 | 585 | 415 | 20 | – | 248 max |
| STANDARD | UNS | WERKSTOFF NR. |
|---|---|---|
| Alloy Steel F91 | K90901 | 1.4903 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
|
SHAPE |
POUNDS PER FOOT |
|---|---|
|
Round |
D2 x 2.67 |
|
Hexagon |
D2 x 2.945 |
|
Square |
D2 x 3.4 |
|
Flat |
Thickness (in.) x Width (in.) x 3.4 |
Latham Steel is a top manufacturer and supplier of high-quality Alloy Steel F91 Bars products in Hamilton, New Zealand. Specializing in steel solutions, we provide a wide range of products, including Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel. Our offerings include Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates. Known for our reliable delivery and superior customer service, we are committed to offering top-tier steel materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your steel needs.
You’ll find F91 bars hard at work in some of industry’s most critical applications. They are a cornerstone material for power generation, forming essential components in boilers, turbines, and high-temperature piping systems. Their reliability also makes them ideal for the petrochemical sector and in specialised pressure vessel fabrication. Essentially, wherever extreme heat and pressure are a constant challenge, F91 bars provide the necessary resilience to ensure long-lasting performance and safety.
Latham Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hamilton, New Zealand.
Copyright 2025 Latham Steel. All rights reserved
