MONEL 400 FLAT WASHERS - DIN 125 / UNS N04400

Name: Ananka Group - India's Leading Fasteners Manufacturer Company
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■ Dimensions in mm (DIN 125 Type A)

PART NUMBER	NOMINAL SIZE	INNER DIAMETER (d1) Max	OUTER DIAMETER (d2) Max	THICKNESS (s) Max	WEIGHT (Kg / 100 pcs Approx)
AN-FW-M400-M3	M3	3.32	7.00	0.55	0.012
AN-FW-M400-M4	M4	4.48	9.00	0.90	0.031
AN-FW-M400-M5	M5	5.48	10.00	1.10	0.044
AN-FW-M400-M6	M6	6.62	12.00	1.80	0.114
AN-FW-M400-M8	M8	8.62	16.00	1.80	0.214
AN-FW-M400-M10	M10	10.77	20.00	2.20	0.408
AN-FW-M400-M12	M12	13.27	24.00	2.70	0.627
AN-FW-M400-M14	M14	15.27	28.00	2.70	0.860

Note: Contact Ananka Group for expanded diameters (M3 to M56), heavy-duty washers (DIN 9021), and spring washers (DIN 127).

Material	Monel 400 (Solid Solution Nickel-Copper Alloy)
Standard / Classification	UNS N04400 \| DIN 2.4360 \| Alloy 400 Density: 8.80 g/cm³ Melting Range: 1300 - 1350°C (2370 - 2460°F)
Chemical Composition (%)	Ni (+Co): 63.0 Min \| Cu: 28.0 - 34.0 \| Fe: 2.5 Max \| Mn: 2.0 Max \| C: 0.3 Max \| Si: 0.5 Max \| S: 0.024 Max
Manufacturing Specification	Washers are typically stamped or machined from Monel 400 plate/sheet (ASTM B127) or rod (ASTM B164). Dimensional tolerances strictly follow DIN 125, DIN 9021, or ASME B18.22.1.
Types Available	Flat Washers (Form A / Form B), Spring Lock Washers, Belleville Washers, Machined Washers, and Custom Punched Washers.
Properties & Applications	Essential for distributing load evenly across fastener joints in highly corrosive marine and chemical environments. Provides a vital secondary degree of resistance against galling and galvanic corrosion in offshore structures, seawater desalinization plants, and hydrofluoric acid alkylation processing.
Marking	Due to size constraints, flat washers are generally not permanently marked unless specifically requested by the client or required by a custom specification.
Qualification & Acceptance	Independently tested for hardness, chemical analysis, pitting resistance, and supplied with EN 10204 Type 3.1 Material Test Certification.