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Monel K500 B127 Plate

Material Grade: Monel K500 (UNS N05500)

Standard Specification: ASTM B127 / ASME SB127

Hardening Process: Precipitation Hardened (Age Hardened)

Performance Edge: 3x Yield Strength of Monel 400

Corrosion Resistance: Superior in Sour-Gas & Marine Environments

Magnetic Property: Non-Magnetic down to -100°C

Thickness Range: 1.0 mm to 40 mm

Core Applications: Oil-Well Tools, Pump Shafts, & Marine Fasteners

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Monel K500 (UNS N05500) Plates are a unique precipitation-hardenable nickel-copper alloy that bridges the gap between the superb corrosion resistance of Monel 400 and the high-strength requirements of modern heavy engineering. While governed by the ASTM B127 standard for dimensional and quality integrity, Monel K500 undergoes a specialized age-hardening process. By adding aluminum and titanium to the nickel-copper base, the alloy achieves a yield strength approximately three times that of standard Monel 400, along with significantly higher fatigue strength and hardness, while maintaining excellent ductility.

The technical sophistication of ASTM B127 Monel K500 makes it indispensable in high-stress corrosive environments, particularly in the oil and gas industry for sour-gas applications. It is practically non-magnetic, even at temperatures as low as -100°C (-150°F), which is a vital characteristic for electronic components and sensitive directional drilling equipment. This alloy offers exceptional resistance to a wide variety of corrosive media, including sea water, hydrofluoric acid, and sulfuric acid, but with the added mechanical advantage needed for centrifugal pump shafts, marine propellers, valve components, and heavy-duty fasteners. Its ability to perform under high pressure and velocity without sacrificing chemical stability ensures it remains the premier choice for critical subsea and chemical processing hardware.

Monel K500 B127 Plate Features

» Precipitation-Hardened Strength: Through the addition of Aluminum and Titanium followed by age hardening, this alloy achieves triple the yield strength and double the tensile strength of Monel 400.
» Exceptional Fatigue Resistance: Designed to withstand cyclic loading and high-stress operations, making it the preferred choice for long-term reliability in moving mechanical parts.
» Non-Magnetic Performance: Remains non-magnetic even at cryogenic temperatures (down to -100°C), which is essential for sensitive electronic sensors and directional drilling tools.
» Broad-Spectrum Corrosion Resistance: Retains the legendary resistance of the Monel family against seawater, hydrofluoric acid, sulfuric acid, and various alkalis.
» Sour-Gas Immunity: Highly resistant to stress-corrosion cracking and pitting in "sour" environments containing H2S, meeting rigorous oilfield performance standards.
» High-Velocity Stability: Outstanding resistance to erosion and cavitation in high-velocity seawater, making it ideal for marine pump impellers and propeller shafts.
» Low Creep Rate: Exhibits very low creep and stress-relaxation properties at elevated temperatures, ensuring dimensional stability in critical valve and fastener applications.
» Excellent Low-Temperature Ductility: Unlike many high-strength steels, Monel K500 does not undergo a ductile-to-brittle transition at cryogenic temperatures, maintaining its toughness.

Monel K500 B127 Plate Specification

Standards

ASTM Standard: B127
ASME Standard: SB127
UNS Number: N05500
WNR Number: 2.4375

Alloy Chemistry

Nickel (Ni): 63.0% Min
Copper (Cu): 27.0% – 33.0%
Aluminum (Al): 2.30% – 3.15%
Titanium (Ti): 0.35% – 0.85%

Mechanical Data

Yield Strength: 690 MPa (Min)
Tensile Strength: 965 MPa (Min)
Elongation: 20% (Min)
Hardness: 28 - 35 HRC (Typical)

Physical Info

Density: 8.44 g/cm³
Melting Range: 1315 - 1350°C
Thermal Cond: 17.5 W/m·K
Magnetism: Non-Magnetic

Size Range

Thickness: 1.0 mm to 40 mm
Width: Up to 2000 mm
Length: Up to 6000 mm
Condition: Age Hardened (Typical)

Quality Control

Certification: EN 10204 3.1
Testing: Hardness / PMI / Tensile
Compliance: NACE MR0175 / ISO 15156
Finish: Bright Annealed / Pickled

Monel K500 B127 Plate Detailed Specifications

Property	Specification
Specification	ASTM B127 / ASME SB127
Width	1000mm - 3000mm
Thickness	3mm - 100mm
Length	2000mm - 12000mm
Supply Condition	Hot-Rolled, Cold-Rolled, Annealed, and as per customer requirements.
Impact Tested	-196°C
Process of Manufacturing	Hot-Rolled, Cold-Rolled, Annealing, Pickling, and Passivation

Monel K500 B127 Plate Chemical Composition

Element	Composition %
Nickel (Ni)	63.0 - 70.0
Copper (Cu)	27.0 - 33.0
Iron (Fe)	2.5 Max
Manganese (Mn)	2.0 Max
Carbon (C)	0.30 Max
Silicon (Si)	0.50 Max
Sulfur (S)	0.024 Max
Phosphorus (P)	0.03 Max
Titanium (Ti)	2.3 - 3.15

Monel K500 B127 Plate Mechanical Properties

Property	Value
Tensile Strength	85,000 – 130,000 psi (585 – 895 MPa)
Yield Strength	45,000 psi (310 MPa)
Elongation	25% (in 8 inches / 200 mm)
Hardness	Rockwell B: 85 – 100
Modulus of Elasticity	19,000,000 psi (131,000 MPa)
Poisson's Ratio	0.31
Shear Modulus	7,800,000 psi (53,700 MPa)

Monel K500 B127 Plate Equivalent Grades

Standard	ASTM B127	ASME SB127	DIN 17750	BS 3076	ISO 9723	JIS H 4600
Equivalent Grade	UNS N05500	UNS N05500	NiCu30Fe	Monel K500	Monel K500	Monel K500

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA