Chung Metal provides Alloy Steel F9 Bars and Rods for power plant and high temperature application where enhanced creep strength and longevity are required. F9 is applied to superheated steam applications and high-stress elevated temperature environments. Our F9 product is manufactured with controlled chemistry, heat treatment, and inspection for compliance with performance specifications. Customers in energy, boiler, and petrochemical industries depend on us for support structures, tubing connectors, and other vital parts using our F9 rods. We supply certified rods in different sizes and finishes appropriate for fabrication.
Alloy Steel F9 is a creep-strength ferritic steel probable to be alloyed with other stabilizers, molybdenum, and chromium. Typical tensile strength may be ~600–750 MPa, yield strength ~350–500 MPa, with elongation ~15–25%. Hardness moderate to high following tempering. It has higher creep resistance than more basic steels, stable microstructure at elevated temperature, and good toughness. Weldability by means of pre‑ and post‑heat treatments is feasible. The alloy finds service in hot steam or high-temperature mechanical loading.
| Steel Round Bars type | F9 Round bars Die Steel Bar |
|---|---|
| Spring steel | 65Mn, 1566, 60Si2Mn, 9260, etc. |
| Standards | ASTM A689, JIS G4801, DIN 17221, GB/T 18254, ASTM A295, JIS G4805, etc. |
| Cold heading steel | ML25, ML35, etc. |
| Alloy structural steel | 40CrNiMo, SAE4330, 42CrMo, 15Cr2Ni2, 40CrNi2Mo, 35CrMoV,12Cr1MoV, ASTM4130, SCM420, 40CrV, etc. |
| Bearing steel | GCr15, SAE52100, GCr15SiMn, 100CrMnSi6-4, SJU2, etc. |
| Available Material Grade | 42CrMo4/SCM440/AISI 4140/DIN 1.7225, 4130 / 1.7218, 4140 / 1.7225, 4340 / 1.6582, 5140 / 1.7035, 8620 / 1.6523, EN19 / EN24H13 alloy steel round bar, 42 Crmo4 Alloy Steel Round Bar, AISI 4140 alloy steel round bar , 42CrMo4 alloy steel rods
|
| Military steel | 20Cr2Ni4A, 18Cr2Ni4WA, 23CrNiMo7-4-7, etc. |
| F9 Round bars Diameter | 5mm-500mm (Customized size is acceptable) |
| F9 Round bars Length | 1m-9m or according to the customer’s requirement. |
| F9 Round bars Range | Range – 3.17mm to 350mm dia |
| F9 Round bars Technique | Forged/Hot Rolled/Cold Drawn/Peeled |
| F9 Round bars Surface | bright round bar, pickled round bar, black round bar |
| F9 Round bars Type | Round bar, rod, square bar, flat bar, hexagon bar, angle bar, channel bar, threaded bar |
| Package Details | Standard seaworthy package(wooden boxes package, pvc package, or other package) |
| Other processing service | Hot dipped Galvanized, pre-galvanized, Color painting,coated, cutting, bending,punching |
| Test Certificate | Mill Test Certificate as per EN 10204 / 3.1B |
| Grade | C | Mn | Si | P | S | Cr | Mo |
| Alloy Steel F9 | 0.15 max | 0.3-0.6 | 0.5-1 | 0.03 | 0.03 | 8-10 | 0.9-1.1 |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 380 | 585 | 20 % |
|
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 |
Alloy Steel F9 Bars and Rods are mainly used in high-temperature applications like steam turbines, aerospace components, and power plants due to their strength and heat resistance.
Alloy Steel F9 offers excellent creep strength, high tensile strength, and resistance to thermal fatigue, making it ideal for high-pressure environments.
Yes, Alloy Steel F9 provides good corrosion resistance, especially in high-temperature and pressure applications, ensuring long-lasting durability.
F9 Bars/Rods find application in boiler superheater systems, high-temperature piping, steam headers, and support structures for turbines. They are also utilized in power plants, process heaters, and furnace hardware. Parts subject to thermal fatigue or creep stress can utilize F9 material. In petrochemical and refining, piping, connectors, and structural supports in the high-temperature environment employ F9 rods. For those components that demand more than conventional alloy steels but less than the price of F91/F92, F9 is a balanced solution.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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