Nickel Alloy 625, Inconel® 625

Alloy 625 is a popular nickel-chromium alloy that offers users a high level of strength and ease of fabrication. Also sold by Continental Steel as Inconel® 625, alloy 625 is known for a number of different unique properties including:

  • Strength due to addition of molybdenum and niobium
  • Outstanding thermal fatigue strength
  • Resistance to oxidation and a wide range of corrosive elements
  • Ease of joining through all types of welding
  • Handles a wide range of temperatures from cryogenic to 1800°F (982°C)

Because of its versatility, a number of industries utilize alloy 625 including nuclear power production, marine/boating/undersea, and aerospace. Within in these critical industries you can find Nickel Alloy 625 and Inconel 625 in various applications including:

  • Nuclear reactor-cores and control-rod components
  • Wire rope for cables and blades on Naval crafts such as gunboats and subs
  • Oceanographic equipment
  • Rings and tubing for environmental control systems
  • Meets ASME code for Boiler and Pressure Vessels

In order to be considered alloy 625, an alloy must have a certain chemical composition which includes:

  • Ni 58% min
  • Cr 20-23%
  • Fe 5% max
  • Mo 8-10%
  • Nb 3.15-4.15%
  • Co 1% max
  • Si .50 max
  • P and S 0.15% max

Continental Steel is a distributor of Nickel Alloy 625 and Inconel 625 in pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon, wire, and extruded section. The mills we work with to supply customers with alloy 625 meet or exceed many of the leading industry standards including those from ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS.

We stock and sell Nickel Alloy 625 and Inconel® 625 in Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon, wire & extruded section.

Chemical Composition of Nickel Alloy 625 and Inconel® 625

Al

.40 max

C

.10 max

Co

1.0 max

Cr

20.0 - 23.0

Fe

5.0 max

Mn

.50 max

Mo

8.0 - 10.0

Nb

3.15 - 4.15

Ni

58.0 max

P

.015 max

S

.015 max

Si

.50 max

Ti

.40 max


Nickel Alloy 625 and Inconel® 625 Standards

Rod, Bar, Wire and Forging Stock

ASTM B 446/ASME SB 446
ASTM B 564/ASME SB 564
SAE/AMS 5666
SAE/AMS 5837
ISO 9723
ISO 9724
ISO 9725
VdTÜV 499
BS 3076NA21
EN 10095
DIN 17752
ASME Code Case 1935
DIN 17754
DIN 17753

Plate, Sheet and Strip

ASTM B 443/ASTM SB 443
SAE/AMS 5599 & 5869 & MAM 5599
ISO 6208
VdTÜV 499
BS 3072NA21
EN 10095
DIN 17750
ASME Code Case 1935

Pipe & Tube

ASTM B 444/B 829
ASME SB 444/SB 829
ASTM B704/B 751
ASME SB 704/SB 751
ASTM B705/B 775
ASME SB 705/SB 775
ISO 6207
SAE/AMS 5581
VdTÜV 499
BS 3074NA21
DIN 17751
ASME Code Case 1935

Fitting

ASTM B 366
ASME SB 366


Back to Top