Monel Alloy Hot Rolled K500 Steel Alloy Plate
Specifications : ASTM B127 / ASME SB127
Standard : ASTM, ASME and API
Size : 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x K5000 mm
Thickness : 1.0mm – 200mm
Range : 5 mm To 50 mm thick in 1000 mm TO 1250 mm width & 2500 mm Length.
Production : Hot-Rolled (HR) / Cold-Rolled (CR)
Form : Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
Grade : Monel K500 Sheets, Plates & Coils UNS (N05500), DIN (2.4375)
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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GNEE Monel alloy Hot rolled K500 Alloy Plate introduce
Monel alloy Hot rolled K500 Steel Plate


Monel K500 hot-rolled plate is a high-performance nickel-copper alloy material with excellent comprehensive properties. The plate is mainly composed of nickel (≥63%) and copper (27-33%), with aluminum (2.3-3.15%) and titanium (0.35-0.85%) added for aging strengthening, and is made into a plate with a thickness of 5-100mm through a hot rolling process. Its most notable feature is that it has both high strength (tensile strength after aging 758-1034MPa, yield strength 517-827MPa) and excellent corrosion resistance, especially in seawater, acidic and alkaline environments, and has excellent resistance to pitting and stress corrosion cracking. The purity of the material is ensured by vacuum induction melting (VIM) and electroslag remelting (ESR) processes, and the hot rolling temperature is strictly controlled in the range of 870-1175℃. Solution annealing (1010-1120℃) and aging treatment (480-620℃/4-16h) can be performed later to obtain the best performance. The surface of the plate is usually pickled (No.1) or customized mechanical polishing (Ra≤1.6μm), which complies with ASTM B127, AMS 4676 and other standards, and is widely used in harsh environments such as marine engineering equipment (such as propellers, pump shafts), oil and gas equipment (valve bodies, drill collars) and chemical containers.
GNEE alloy Hot rolled K500 Steel Alloy Plate Specification Sheet
Monel K500 Hot-Rolled Plate Comprehensive Property Table
| Category | Parameter | Value/Description |
|---|---|---|
| Dimensions | Thickness | 5.0mm – 100mm (standard industrial range) Custom orders up to 150mm+ available. |
| Width | 1000mm – 2000mm (standard) Maximum 2500mm (subject to equipment capability). |
|
| Length | 2000mm – 6000mm (standard) Custom lengths up to 12000mm (requires cutting). |
|
| Standards | International | ASTM B127 (plate/sheet), ASTM B865 (bar/forging reference) AMS 4676 (aerospace) |
| European | EN 10095 (heat-resistant steel & nickel alloy reference) | |
| UNS Code | N05500 | |
| Surface Finishes | As-Hot-Rolled | Mill scale (black surface), requires pickling for removal. |
| Pickled Finish | Scale-free, grayish-white matte appearance (No.1 finish). | |
| Mechanically Polished | Bright finish (Ra ≤1.6μm, additional processing required). | |
| Sandblasted | Used for improved coating adhesion (special requests). | |
| Production Process | Melting Method | Vacuum Induction Melting (VIM) + Electroslag Remelting (ESR) (Ensures low impurities & high homogeneity). |
| Hot-Rolling Temperature | 870°C – 1175°C (avoid low temperatures to prevent cracking). | |
| Post-Rolling Treatment | Solution Annealing (1010°C – 1120°C) + Water Quenching/Rapid Cooling (optimizes grain structure). | |
| Age Hardening | 480°C – 620°C for 4–16 hours (enhances strength to HRC 25–35). | |
| Tolerances | Thickness Tolerance | ±5% – ±10% (per ASTM B127, varies by thickness). |
| Width/Length Tolerance | ±5mm (standard), higher precision negotiable. | |
| Supply Conditions | As-Hot-Rolled (HR) | Mill scale present, requires further processing. |
| Pickled (PA) | Ready for corrosion-resistant applications (e.g., chemical equipment). | |
| Solution Annealed | Soft condition, suitable for cold forming. |
Chemical Composition Of Monel K500 Plates
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
|---|---|---|---|---|---|---|---|
| Monel K500 | 0.25 max | 1.5 max | 0.5 max | 0.010 max | 27.00 – 33.00 | 0.5 – 2 | 63.00 min |
GNEE Monel Hot rolled K500 Steel Alloy Plate Schedule
Size chart of K500 Monel Plate
|
Stocked Sizes |
|
|---|---|
|
Size (in inches) |
Size (in mm) |
|
.125" |
3.18mm |
|
.134" |
3.40mm |
|
.156" |
3.96mm |
|
.187" |
4.75mm |
|
.250" |
6.35mm |
|
.312" |
7.92mm |
|
.375" |
9.53mm |
|
.500" |
12.7mm |
|
.601" |
15.9mm |
|
.750" |
19.1mm |
|
.875" |
22.2mm |
|
1" |
25.4mm |
|
1.125" |
28.6mm |
|
1.250" |
31.8mm |
|
1.500" |
38.1mm |
|
1.750" |
44.5mm |
|
2" |
50.8mm |
|
2.500" |
63.5mm |
|
3" |
76.2mm |
Dimensions: widths 1000/1220/1500 mm, lengths 2000/2500/3000 mm.
GNEE Group Factory Environment
GNEE Group Hot rolled K500 Steel Alloy Plate Factory Environment

GNEE Group Hot rolled K500 Alloy Plate Packaging
GNEE Group alloy Hot rolled K500 Steel Plate Packaging

GNEE Group Testing
GNEE Group Monel alloy Hot rolled K500 Plate Testing

FAQ
1. What is Monel K500 used for?
Monel K-500 is used in a wide variety of demanding applications such as marine chains, cables, fasteners, and springs; chemical pump and valve components; pulp scrapers and blades; and oil well drill collars, instrumentation, pump shafts, and impellers. Its nonmagnetic properties are also valuable.
2. What is the ISO standard for Monel K500?
Monel K500 (UNS N05500) is an age-hardening nickel-copper alloy that is highly corrosion resistant and is particularly useful in marine, chemical, and oil well environments. It is certified to NACE MR 0175/ISO 15156 and API 6ACRA standards.
3. What is the maximum operating temperature for Monel K500?
Monel K500 maintains its mechanical properties at temperatures ranging from sub-zero to 480°C (896°F). Although it has a significantly higher melting point (1300-1350°C or 2372-2462°F) and a Curie temperature of 35°C (95°F), 480°C is the highest temperature at which mechanical properties are maintained.
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