Nickel alloys

N08825 • 2.4858 • TPS-Techalloy 825

Datasheet

ALLOY 825 is a nickel-iron-chromium alloy containing Molybdenum and copper to make it very resistant to reducing environments such as sulfuric or phosphoric acid. It is also resistant to chloride stress corrosion.

Chemical composition • mass in %

Material grade Norm C
max.
Si
max.
Mn
max.
P
max.
S
max.
Cr Ni Mo Ti others
2.4858 DIN 17744 / 17751 0,025 0,50 1,00 0,025 0,015 19,50 - 23,50 38,00 - 46,00 2,50 - 3,50 0,60 - 1,20 Co 1,0; Cu 1,5-3,0; Al 0,2 Fe Rest
2.4858 VD-TÜV WB 432/2 0,025 0,50 1,00 0,020 0,010 19,50 - 23,50 38,00 - 46,00 2,50 - 3,50 0,60 - 1,20 Cu 1,5-3,0; Al 0,2 max. Fe Rest
N08825 ASTM B 163/423 0,050 0,50 1,00 0,030 19,50 - 23,50 38,00 - 46,00 2,50 - 3,50 0,60 - 1,20 Cu 1,5-3,0; Al 0,2 max. Fe 22,0 min.

Mechanical properties and heat treatment

Material grade Norm Rp 0,2 MPa
min.
Rp 1,0 MPa
min.
Rm MPa
min. max.
A
min.%
Hardness
HRB max.
Heat treatment
2.4858 DIN 17744 / 17751 235 265 550 30 90 soft annealed
2.4858 VD-TÜV WB 432/2 235 265 550 - 750 30 90 soft annealed
N08825 ASTM B 163/423 241 586 30 90 annealed

Rp 0,2 = Rotation

Rp 1,0 = Yield Strength

Rm = Tensile Strength

A = Elongation

Tolerances

OD - Tube OD WT special WT ID
ab Ø4,55 mm ±0,050 mm ±0,150 mm ±0,100 mm X
ab Ø9,53 mm ±0,050 mm ±0,100 mm ±0,080 mm ±0,050 mm
ab Ø30,00 mm ±0,100 mm ±0,150 mm ±0,050 mm

Scope of dimensions*

* Dimensions not shown on request

WD [mm] 1,20 1,24 1,40 1,50 1,65 1,82 2,00 2,11 2,20 2,30 2,35 2,41 2,50 2,64 2,77 2,80 2,87 3,00 3,20 3,25 3,35 3,50 3,60 3,85 3,91 4,00
AD [inch] 0,048 0,065 0,072 0,083 0,093 0,095 0,104 0,109 0,113 0,126 0,128 0,154
[mm] [inch]
10,00
11,00
12,00
12,70 0,500
13,00
13,50
14,00
15,00
15,88 0,625
16,00
16,80
17,15 0,675
18,00
19,00
19,05 0,750
20,00
21,34 0,840
21,40
22,00
22,23 0,875
23,00
24,30
25,00
25,20
25,40 1,000
26,00
26,67 1,050
28,00
30,00
31,75 1,250
32,00
33,40 1,315
35,00
36,00
38,00
38,10 1,500

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