Nickel alloys

N06625 • 2.4856 • TPS-Techalloy 625

Datasheet

ALLOY 625 is a high nickel-chromium-Molybdenum-columbium alloy. This tubing is used for offshore technology, chemical industry, production of phosphate acid, flue gas desulphurating plants, waste incineration plants. It is sea water resistent.

Chemical composition • mass in %

Material grade Norm C
max.
Si
max.
Mn
max.
P
max.
S
max.
Cr Ni Mo Ti others
2.4856 DIN 17744 0,100 0,50 0,50 0,020 0,015 20,00 - 23,00 58,00 8,00 - 10,00 0,400 Co 1,0 max.; Fe 5,0 max.; Al 0,4 max.
2.4856 VD-TÜV WB 499 0,030 0,40 0,50 0,010 0,010 21,00 - 23,00 rest 8,00 - 10,00 0,400 Co 1,0 max.; Fe 5,0 max.; Al 0,4 max.; Cb + Ta 3,20 – 3,80
N06625 ASME SB / ASTM B 444 0,100 0,50 0,50 0,015 0,015 20,00 - 23,00 58,00 8,00 - 10,00 0,400 Co 1,0 max.; Fe 5,0 max.; Al 0,4 max.; Cb+Ta 3,15 – 4,15

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
2.4856 DIN 17744 415 445 830 30 soft annealed
2.4856 VD-TÜV WB 499 400 830 - 1000 35 soft annealed
N06625 ASME SB / ASTM B 444 414 827 30 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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