Alloy 800 Round bar ASTM B408

Alloy 800 round bar ASTM B408 Size:Wire: 12mm-300mm High quality with Good performance ISO Certified.

Alloy 800 Round bar ASTM B408

These Nichrome Base Alloysare used extensively in applications where heat resistance and/or corrosion resistance is required. In some members of the group, where conditions are less demanding, some nickel is replaced by iron to decrease the overall cost.

Metals fail at high temperatures by both oxidation (scaling) and through a loss in strength. Alloys in this class are designed to resist failure from both of these mechanisms. Nickel alloys are not suitable for high temperature sulphur rich environments.

Where corrosion resistance is significant, molybdenum is used as an alloying addition in nickel chromium based alloys.

The more recentnickel chromium base alloys in these groups also have a wide range of ancillary elements added to give special properties - some of these can be quite complicated and require very close control over composition and heat treatment.

Table 1. Compositions of some common nickel alloys.

UNS No	Al	Cr	Co	Fe	Mo	Ni	Nb+Ta	Ti	W
N10276		15.5		5.5	16	57			3.8
N06600		15.5		8		76
N06625		21.5			9	61	3.6
N08800		21		46		32.5
N07718	0.5	19		18.5	3	52.5	5.1
N07090	1.5	19.5	16.5			60		2.5

Table 2. Typical properties of some common nickel alloys.

UNS No	Condition	UTS (MPa)	0.2 Proof Stress (MPa)	Elong. On 5cm (%)	Hardness (HB)	1000hr Ruptire Str. 750°C (MPa)
N10276	Annealed	790	415	50	184	N/a
N06600	Annealed	550-690	210-430	55-35	120-170	38
N06625	Annealed	930	520	45	180	160
N08800	Annealed	520-690	210-410	60-30	120-184	70 (700°C)
N07718	Age Hardened	1350	1180	17	382	170

Alloy 800 Round bar ASTM B408