Monel R405

Monel R-405 Free Machining Alloy

Monel® R-405

UNS N04405 | Alloy R-405 | Free-Machining Monel

Monel R-405 is the free-machining version of Monel 400. It retains the excellent corrosion resistance and physical properties of Monel 400, but has a controlled amount of sulfur added to create sulfide inclusions that act as chip breakers during machining.

  • الأشكال الشائعة: Round Bar, Hex Bar, Rod, Wire.
  • الميزة الرئيسية: Excellent machinability for automatic screw machines.
  • مقاومة التآكل: Similar to Monel 400 (resistant to sea water, acids, alkalis).
  • Standard: Primarily furnished as bar and rod (ASTM B164).
Why Choose Monel R-405?

Select Monel R-405 when you need the corrosion resistance of Monel 400 but your application involves high-volume production of complex parts on automatic screw machines. The sulfur additions significantly reduce tool wear and machining time.

Superior Machinability

The increased sulfur content creates manganese sulfide inclusions that break chips easily, allowing for higher cutting speeds and better surface finish.

مقاومة التآكل

Exhibits the same resistance as Monel 400 to sea water, hydrofluoric acid, sulfuric acid, and alkalis in most environments.

Ideal for Small Parts

Perfect for manufacturing intricate fasteners, valve components, and small hardware where machining cost is a major factor.

التركيب الكيميائي (%)
العنصر المحتوى (%)
النيكل (ني) 63.0 min
النحاس (النحاس) 28.0 - 34.0
الحديد (Fe) 2.5 كحد أقصى
المنجنيز (Mn) 2.0 max
الكربون (C) 0.3 max
السيليكون (Si) 0.5 max
Sulfur (S) 0.025 - 0.060

*Note: The higher sulfur content is the key difference from Monel 400.

المواصفات القياسية
نموذج المنتج معايير ASTM / ASME
Bar & Rod (Cold-Drawn or Annealed) ASTM B164, ASME SB164
الأسلاك ASTM B164
Mechanical Properties (Cold-Drawn Rod Typical)
الممتلكات القيم النموذجية (درجة حرارة الغرفة)
قوة الشد 85 - 115 ksi (586 - 793 MPa)
قوة الخضوع (إزاحة 0.2%) 50 - 90 ksi (345 - 621 MPa)
الاستطالة 35 - 15 %
الصلابة (برينل) 160 - 220 HB

*Note: Properties depend heavily on diameter and temper (annealed vs. cold-drawn).

التطبيقات النموذجية

Automatic Screw Machine Parts

High-volume production of small, complex components where machining efficiency is critical.

السحابات

Nuts, bolts, and screws used in corrosive marine or chemical environments.

Valve Components

Valve seats, stems, and trim that require both corrosion resistance and precision machining.

Water Meter Parts

Internal components for water meters exposed to various water conditions.

Need Free-Machining Monel R-405?

We supply Monel R-405 in cold-drawn bars and rods perfect for your machining needs. Contact us for current stock and pricing.

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