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Inconel 625 DIN 2.4856 Uns N06625 High Temperature Alloys Plate
Inconel 625 Alloy 625 DIN2.4856 plate sheet made in USA SMC/ATI/HAYNES
General Properties
Alloy 625 is an austenitic nickel-chromium-molybdenum-niobium alloy possessing outstanding corrosion resistance coupled with high strength from cryogenic temperatures to 1800°F (982°C). The strength is derived from solid-solution hardening of the nickel-chromium matrix by molybdenum and niobium, eliminating the need for precipitation-hardening treatments.
The chemical composition provides exceptional corrosion resistance in severe operating environments, with resistance to oxidation, carburization, pitting, crevice corrosion, impingement corrosion, intergranular attack, and virtual immunity to chloride stress corrosion cracking. Alloy 625 can be easily welded and processed using standard shop fabrication practices.
50.8 Microhm-in at 70°C | 128.9 Microhm-cm at 210°C
Mean Coefficient of Thermal Expansion
Temperature Range
in/in/°F
cm/cm°C
200°F | 93°C
7.1 x 10⁻⁶
12.8 x 10⁻⁶
400°F | 204°C
7.3 x 10⁻⁶
13.1 x 10⁻⁶
600°F | 316°C
7.4 x 10⁻⁶
13.3 x 10⁻⁶
800°F | 427°C
7.6 x 10⁻⁶
13.7 x 10⁻⁶
1000°F | 538°C
7.8 x 10⁻⁶
14.0 x 10⁻⁶
1200°F | 649°C
8.2 x 10⁻⁶
14.8 x 10⁻⁶
1400°F | 760°C
8.5 x 10⁻⁶
15.3 x 10⁻⁶
1600°F | 871°C
8.8 x 10⁻⁶
15.8 x 10⁻⁶
1700°F | 927°C
9.0 x 10⁻⁶
16.2 x 10⁻⁶
Mechanical Properties
Typical Values at 68°F (20°C)
Yield Strength 0.2% Offset
Ultimate Tensile Strength
Elongation in 2 in.
Hardness
65,000 psi (min.) | 448 MPa
125,000 psi (min.) | 862 MPa
50% (min.)
200 Brinell (max.)
Corrosion Resistance
The highly alloyed chemical composition of Alloy 625 imparts outstanding corrosion resistance in severely corrosive environments. The alloy is virtually immune to attack in mild conditions such as atmosphere, fresh and sea water, neutral salts and alkaline solutions. Nickel and chromium provide resistance to oxidizing solutions, while nickel and molybdenum supply resistance in non-oxidizing environments. Molybdenum provides resistance to pitting and crevice corrosion, and niobium acts as a stabilizer during welding to prevent intergranular cracking. The high nickel content makes Alloy 625 virtually immune to chloride stress corrosion cracking.
Pitting Resistance Equivalency Numbers (PREN)
Alloy
Ni
Cr
Mo
W
Nb
N
PREN
316 Stainless Steel
12
17
2.2
-
-
-
20.4
317 Stainless Steel
13
18
3.8
-
-
-
23.7
Alloy 825
42
21.5
3
-
-
-
26.0
Alloy 864
34
21
4.3
-
-
-
27.4
Alloy G-3
44
22
7
-
-
-
32.5
Alloy 625
62
22
9
-
3.5
-
40.8
Alloy C-276
58
16
16
3.5
-
-
45.2
Alloy 622
60
20.5
14
3.5
-
-
46.8
SSC-6MO
24
21
6.2
-
-
0.22
48.0
Alloy 686
58
20.5
16.3
3.5
-
-
50.8
Fabrication Data
Hot Forming
The hot-working temperature range for Alloy 625 is 1650 - 2150°F (900 - 1177°C). Heavy working should occur near 2150°F (1177°C), while lighter working can take place down to 1700°F (927°C). Use uniform reductions to prevent duplex grain structure.
Cold Forming
Alloy 625 can be cold-formed using standard shop fabrication practices in the annealed condition. Work hardening rates are higher than austenitic stainless steels.
Welding
Alloy 625 can be readily welded by most standard processes including GTAW (TIG), PLASMA, GMAW (MIG/MAG), SAW and SMAW (MMA). No post weld heat treatment is necessary. Brushing with stainless steel wire brush after welding removes heat tint.
Machining
Alloy 625 should be machined in the annealed condition. Due to work-hardening tendency, use low cutting speeds with continuous tool engagement and adequate cut depth to avoid work-hardened zones.
Packing
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
