Monel K500 Fastener

Monel K500 Fastener Form

	Product name	Standard No.	Size
BOLT	HEX HEAD BOLT	ANSI/ASME B18.2.1, DIN933, DIN931	1/4”-4”, M5-M100
	SOCKET CAP SCREW	ANSI/ASME B18.3, DIN912, DIN7991, DIN913/916	1/4”-4”, M5-M100
	FLANGE BOLT	ANSI/ASME B18.2.3.4M-2001, DIN 6923	1/2”-4”, M10-M100
	EYE BOLT	ANSI/ASME, DIN standard	1/2”-4”, M10-M100
	OTHER BOLT	U BOLT, T BOLT, J BOLT, SQURE HEAD BOLT, SHOULDER BOLT, AND NON-STANDARD BOLT ACCORDING TO CUSTOMER NEEDS.
STUD	THREADED ROD/BAR	ANSI/ASME, DIN975/DIN976	3/8”-4”, M5-M100
	DOUBLE ENDS STUDS	ANSI/ASME, DIN STANDARD	3/8”-4”, M5-M100
NUT	HEX NUT	ANSI/ASME B18.2.2, DIN934	1/4”-4”, M5-M100
	HEAVY HEX NUT	ANSI/ASME B18.2.2, DIN standard	1/2”-4”, M12-M100
	NYLON LOCK NUT	ANSI/ASME B18.16.6-2008, DIN 985,DIN982	1/2”-4”, M12-M100
	FLANGE NUT	ANSI/ASME, DIN6923	1/2”-4”, M12-M100
	COUPLING NUT/LONG NUT	ANSI/ASME, DIN STANDARD	1/2”-4”, M12-M100
	SQUARE NUT	ANSI/ASME, DIN 557	1/2”-4”, M12-M100
	HEX DOOMD CAP NUT	ANSI/ASME, DIN1587	1/2”-4”, M12-M100
	WING NUT	ANSI/ASME, DIN315	1/2”-4”, M12-M100
WASHER	FLAT WASHER	ANSI/ASME B18.22.1, DIN125	3/8”-4”, M6-M100
	SPRING WASHER	ANSI/ASME B18.21.1, DIN127	3/8”-4”, M6-M100

Typical Mechanical Properties

Material	Form and Condition	Tensile Strength MPa	Yield Strength (0.2% Offset) MPa	Elongation (%)	Hardness Rockwell B
Alloy K 500 Rod and Bar	Cold Drawn Annealed	621-758	276-414	50-25	75-90B
Alloy K-500 Rod and Bar	Cold- Drawn Annealed and Aged	896-1310	586-827	30-20	24-35C

Monel K500 Features

Nickel Alloy 500/ Monel 500 Bolts and Nuts and Nuts

Monel K500 bolts are comprised of a nickel alloy that combines the outstanding corrosion resistance of Monel 400 with increased strength and hardness. These additional attributes of Monel K500 bolts are a result of an age hardening process where aluminum and titanium are added to the nickel-copper base and then precipitated throughout the matrix. This process gives K500 approximately 3 times the yield strength ( 110ksi vs 45ksi) and double the tensile strength (160ksi vs 83ksi) when compared 400. Monel K500 bolts will retain their strength to 1200°F and even retain their ductility as low as -400°F.

Corrosion Resistance

Monel K500 bolts offer a unique combination of high strength with similar corrosion resistance to Monel 400 and improved resistance to a sour-gas environments. Stronger than 400, alloy K500 even retains this strength in corrosive conditions, resisting both pure and salt water, as well as non-oxidizing mineral acids, salts, alkalis, and sour gas. The exception being that Monel K500 bolts can be more prone to stress-corrosion cracking in some environments than Monel 400. In addition, stagnant or slow-moving sea water can cause fouling which is followed by pitting, but pitting typically slows after initial attack.

Outstanding Low Temperature Capabilities

Monel K500 bolts are virtually non-magnetic and spark resistant, even at temperatures down to -200°F. Though in some applications, Monel K500 can develop a magnetic layer during processing when aluminum and copper are selectively oxidized during heating, leaving a magnetic nickel-rich film on the outside. This can be corrected by pickling or bright dipping in acid, which will remove any magnetic film and restore it to a non-magnetic condition. In addition, Monel K500 bolts also offer outstanding low temperature properties. When utilized at subzero temperatures, these bolts actually increase their tensile and yield strengths, while ductility and toughness are virtually unchanged. Hence, Monel K500 bolts are utilized in many cryogenic applications.

Chemical Composition Limits

Monel K 500	Ni+Co	Cu	Al	Ti	C	Mn	Fe	S	Si
Min%	63.0	27.0	2.3	0.35
Max%		33.0	3.15	0.85	0.25	1.5	2.0	0.010	0.5

Different Countries Steel No. Chart

Alloy Name	Trade Name	UNS No.	British Specs	American Specs	German Specs
Alloy K500	Monel K500	UNS N05500	BS 3072	AMS 4676 Bar and Forgings	WS 2.4375
			BS 3073	QQ-N-286
			BS 3074
			BS 3075
			BS 3076
			NA18