Monel K500 Plate

Q: Is Monel K500 plate magnetic?

No. Monel K500 is virtually non-magnetic,even at cryogenic temperatures down to -423°F (-253°C).Its magnetic permeability stays below 1.002,making it ideal for directional drilling tools and sensitive electronic enclosures.

Q: Does Monel K500 get brittle in freezing temperatures?

No. Unlike carbon steels,Monel K500 has excellent cryogenic toughness.It does not have a ductile-to-brittle transition temperature,meaning it retains high impact strength,elongation,and ductility in sub-zero and liquefied gas environments.

Q: Can Monel K500 plates resist sour gas (H₂S) environments?

Yes,but with strict controls.It resists SSC in oilfield environments,provided it meets NACE MR0175 / ISO 15156 standards,which mandate a maximum material hardness of 35 HRC.

Q: Can you weld Monel K500 plate?

Yes.It is typically welded using the GTAW/TIG or GMAW/MIG process. Monel Filler Metal 60 or Inconel Filler Metal 625 are commonly used.

Monel K500 plate is a high-performance nickel-copper alloy plate that combines the exceptional corrosion resistance of standard Monel 400 with substantially greater mechanical strength and hardness.These enhanced properties are achieved through precipitation age-hardening,driven by the strategic addition of aluminum and titanium to the alloy matrix.

Core Advantages & Properties

Marine Corrosion Resistance:
Delivers impeccable durability against fast-flowing seawater,brackish water,and high-velocity impingement attacks,making it highly valued in offshore environments.
Chemical Immunity:
Excellent performance when exposed to non-oxidizing mineral acids,salts,alkalis,and complex sour-gas oilfield environments.
Non-Magnetic Nature:
Stays entirely non-magnetic (μ < 1.002) even down to deep cryogenic ranges,minimizing magnetic interference in precision devices.
Cryogenic Toughness:
Unlike conventional carbon steels,it does not undergo a ductile-to-brittle transition phase,retaining excellent impact strength in sub-zero and liquefied gas applications.

Applications of Monel K500 Plate

We offer Monel K500 plates and sheets in thicknesses of 1.5, 2.0 and 3.0.We offer not only stainless steel plates and sheets but also plates made of Hastelloy,Incoloy,Inconel,Monel,and other alloys.Our products comply with ASTM A240,EN 10204,ISO 9001,PED 2014/68/EU,CE,and other standards.With over a decade of experience in manufacturing and import/export,we are your best wholesaler in China.

Chemical Composition of Monel K500 Plate

The chemical composition of Monel K500 plate is defined under global standards like standard ASTM B127 and standard QQ-N-286.It is fundamentally a nickel-copper base with strategic additions of aluminum and titanium to enable age-hardening.

Ni	Cu	Al	Ti	Fe	Mn	Si	C	S
≥ 63.0	27.0 – 33.0	2.30 – 3.15	0.35 – 0.85	≤ 2.0	≤ 1.5	≤ 0.50	≤ 0.18	≤ 0.01

How Composition Changes Performance

The critical differentiator is the precise balance of Aluminum and Titanium.While base Monel 400 contains only trace amounts of these elements,adding them to Monel K500 allows submicroscopic particles of Ni₃(Al,Ti) to precipitate throughout the matrix when heat-treated.This blocks atomic dislocations,tripling the yield strength of the plate.

Because the base ratio of Nickel to Copper remains identical to Monel 400,Monel K500 plate suffers no degradation in its core resistance to salt water,alkalis,and non-oxidizing organic acids.

Monel K500 Standards & Equivalent Designations

Monel K500 Alloy
Standard / System	Equivalent Designation
UNS Number	UNS N05500
DIN / German Werkstoff	W.Nr. 2.4375
EN Chemical Name	NiCu30Al
JIS	NW 5500
AFNOR	NU30AT
Generic Trade Name	Alloy K500, Monel K500

Plate, Sheet & Strip:ASTM B127 / ASME SB127
Seamless Pipe & Tube:ASTM B165 / ASME SB165
Welded Pipe & Tube:ASTM B725 / ASME SB725
Rod, Bar & Wire:ASTM B865 / AMS 4676 / QQ-N-286
Forgings & Forged Flanges:ASTM B865 / ASTM B564 / ASME SB564
Pipe Fittings:ASTM B366 / ASME SB366

Have a requirement?

Kaysuns is a professional supplier of Monel K500 Plates.Please feel free to contact me if you have any requirements.

Mechanical Properties of Monel K500 Plate

Mechanical Property	Annealed Condition	Age-Hardened
Tensile Strength	620 – 790 MPa 90 – 115 ksi	896 – 1100 MPa 130 – 160 ksi
Yield Strength	276 – 414 MPa 40 – 60 ksi	620 – 827 MPa 90 – 120 ksi
Elongation	45% – 30%	30% – 20%
Hardness	75 – 90 HRB 140 – 185 HB	24 – 35 HRC 250–327 HB

Elastic and Shear Modulus

Elastic Modulus:26,000 ksi (179 GPa)
Shear Modulus:9,600 ksi (66 GPa)
Poisson’s Ratio:0.32

Temperature Dependency

As operating temperatures rise,the atomic bonds expand,resulting in a predictable reduction in stiffness.If your engineering calculations involve high-temperature or cryogenic environments,use the following structural modifiers:

Cryogenic (-320°F / -196°C): Elastic modulus increases slightly to approximately 27,300 ksi (188 GPa).
Elevated Temp (400°F / 204°C): Elastic modulus drops to 25,100 ksi (173 GPa).
Elevated Temp (800°F / 427°C): Elastic modulus drops to 23,700 ksi (163 GPa).
Elevated Temp (1000°F / 538°C): Elastic modulus drops to 22,800 ksi (157 GPa).

Our Advantages in Manufacturing Monel K500 Plate

Advanced Vacuum Melting & Chemical Control

Utilizing Vacuum Induction Melting (VIM) followed by Vacuum Arc Remelting (VAR) ensures extreme alloy purity,eliminating trace inclusions.
Strict software-driven control over the narrow 2.30%–3.15% Aluminum and 0.35%–0.85% Titanium window ensures a uniform distribution of Ni₃(Al, Ti) hardening precipitates during aging.

Thermal Processing & Aging Expertise

Large-scale solution annealing is performed under protective atmospheres to prevent surface depletion of alloying elements.
Precision multi-stage aging furnaces eliminate internal thermal gradients,providing completely consistent hardness and yield strength profiles from the surface to the plate core.

Tight Dimensional Tolerances & Surface Quality

Modern rolling mills deliver exceptional flatness control and ultra-tight thickness tolerances that exceed standard ASTM B127 requirements.
Chemical pickling and mechanical descaling operations leave a clean,passivated surface layer optimized for direct marine and subsea installation.

NDT & NACE Compliance Verification

Every plate undergoes comprehensive internal ultrasonic inspection to guarantee zero internal voids or lamination defects.
Metallurgical labs perform explicit testing to guarantee complete compliance with NACE MR0175/ISO 15156,verifying the hardness never exceeds the critical 35 HRC cracking threshold.

FAQs About Monel K500 Plate

Is Monel K500 plate magnetic?

No.Monel K500 is virtually non-magnetic,even at cryogenic temperatures down to -423°F (-253°C).Its magnetic permeability stays below 1.002,making it ideal for directional drilling tools and sensitive electronic enclosures.

Does Monel K500 get brittle in freezing temperatures?

No.Unlike carbon steels,Monel K500 has excellent cryogenic toughness.It does not have a ductile-to-brittle transition temperature,meaning it retains high impact strength,elongation,and ductility in sub-zero and liquefied gas environments.

Can Monel K500 plates resist sour gas (H₂S) environments?

Yes,but with strict controls.It resists SSC in oilfield environments,provided it meets NACE MR0175 / ISO 15156 standards,which mandate a maximum material hardness of 35 HRC.

Can you weld Monel K500 plate?

Yes.It is typically welded using the GTAW/TIG or GMAW/MIG process. Monel Filler Metal 60 or Inconel Filler Metal 625 are commonly used.

Monel K500 Plate