Nickel Alloy Tubes 20 • UNS N08020 • 2.4660

Short Description:

Alloy 20 Nickel Alloy Tubes. Alloy 20 is a nickel-iron-chromium alloy with addition of copper and Molybdenum. Stabilized with niobium against sensitization and resultant intergranular corrosion. Alloy 20 has exellent resistance to general corrosion, pitting and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric and nitric acids.

Tube Grade: Alloy 20, UNS N08020, 2.4660

Tube Type: Welded, Seamless

Tube Form: Straight, U Bend

Surface Finish: Bright Annealed, Annealed & Pickled, Polished

Standards (ASME/ASTM): B468, B464, B729

Standards (EN): DIN 17744, DIN 17751

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Product Detail

Product Tags

Alloy 20 Nickel Alloy Tubes, 2.4660 Nickel Alloy Tubes

Chemical Composition (in % by mass)
Grade	C	Si	Mn	P	S	Cr	Ni	Mo	Fe	Co	Cu	Nb+Ta	Others
	Max.	Max.	Max.	Max.	Max.					Max.
N08020	0.07	1.00	2.00	0.045	0.035	19.00 – 21.00	32.00 – 38.00	2.0 – 3.0	remainder		3.00 – 4.00	8XC – 1.0
2.4660	0.07	1.00	2.00	0.025	0.015	19.0 – 21.0	32.0 – 38.0	2.0 – 3.0	Rest	1.5	3.0 – 4.0	8XC – 1.0

Mechanical Property & Heat Treatment

Grade	Rp 0.2 Mpa	Rp 1.0 Mpa	Rm Mpa	A (%)	Hardness (HRB)	Heat Treatment
	Min.	Min.	Min. – Max.	Min.	Max.
N08020	240		550	30		Annealed
2.4660	240		550	40		Soft Annealed

Tube Size Commonly Used

OD	Thickness (mm)
(mm)	0.50	0.70	0.80	0.89	1.00	1.20	1.24	1.50	1.65	2.00	2.11	2.50	2.77	3.05
6.00	x	x	x	x	x	x	x	x
6.35	x	x	x	x	x	x	x	x	x
7.00	x	x	x	x	x	x	x	x
7.50	x	x	x	x	x	x	x	x
8.00	x	x	x	x	x	x	x	x
9.00	x	x	x	x	x	x	x	x
9.53	x	x	x	x	x	x	x	x	x
10.00	x	x	x	x	x	x	x	x
11.00	x	x	x	x	x	x	x	x
12.00	x	x	x	x	x	x	x	x		x
12.70	x	x	x	x	x	x	x	x	x	x	x
13.00	x	x	x	x	x	x	x	x
14.00	x	x	x	x	x	x	x	x
15.00	x	x	x	x	x	x	x	x
15.88	x	x	x	x	x	x	x	x	x	x	x
16.00	x	x	x	x	x	x	x	x	x	x
17.15	x	x	x	x	x	x	x	x	x	x	x
18.00	x	x	x	x	x	x	x	x	x	x
19.00	x	x	x	x	x	x	x	x	x	x
19.05	x	x	x	x	x	x	x	x	x	x	x	x	x
20.00	x	x	x	x	x	x	x	x	x	x	x	x	x
21.34	x	x	x	x	x	x	x	x	x	x	x	x	x
22.00	x	x	x	x	x	x	x	x	x	x	x	x	x
22.23	x	x	x	x	x	x	x	x	x	x	x	x	x
23.00	x	x	x	x	x	x	x	x	x	x	x	x	x
24.00	x	x	x	x	x	x	x	x	x	x	x	x	x
25.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
25.40	x	x	x	x	x	x	x	x	x	x	x	x	x	x
26.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
26.67	x	x	x	x	x	x	x	x	x	x	x	x	x	x
26.90	x	x	x	x	x	x	x	x	x	x	x	x	x	x
28.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
28.58	x	x	x	x	x	x	x	x	x	x	x	x	x	x
30.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
31.75	x	x	x	x	x	x	x	x	x	x	x	x	x	x
32.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
33.40	x	x	x	x	x	x	x	x	x	x	x	x	x	x
35.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
36.00	x	x	x	x	x	x	x	x	x	x	x	x	x	x
38.10	x	x	x	x	x	x	x	x	x	x	x	x	x	x
42.00					x	x	x	x	x	x	x	x	x	x
44.50						x	x	x	x	x	x	x	x	x
48.26								x	x	x	x	x	x	x
50.80				x	x	x	x	x	x	x	x	x	x	x