Inconel 625 tube

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inconel 625 tube
What is Inconel 625 tube ?

Inconel 625 is a nickel chromium alloy that is known for its high strength and excellent fabricability. The material offers excellent resistance to corrosion and its service temperature ranges from cryogenic to 982 °C. Precipitation hardening of the inconel 625 tubes is not required since the material contains molybdenum and niobium. This combination also enhances the rust resistance properties in a wide range of environments.

Due to the properties offered by alloy 625 tubing, they are used in sea water applications. The material can effectively withstand pitting and crevice corrosion. It also possesses good mechanical properties like high tensile strength along with effectively resisting chloride ion stress corrosion cracking. Inconel 625 exhaust tubing also offers good oxidation resistance and excellent weldability.

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India's first ever suppliers of Inconel 625 seamless tubing, check standard sizes

What are the standard sizes of Inconel 625 tubing?

Inconel 625 tubing is available in various standard sizes so that it can accommodate a wide range of applications. The outer diameter of the tubes range between 1/16- 2” in diameter. The common wall thicknesses are between 0.035-0.120”.

The inconel 625 tube suppliers supply them in standard lengths of 20 or 24 feet. You can get the sizes customized specific to your application requirements at Regent Steel & Engineering Co.

Mumbai's most reliable stockist of inconel 625 tubing in size ranging from 12mm to 260mm at competitive prices, Learn is alloy 625 exhaust tubing costly? why ?

Inconel 625 tubing

Inconel 625 tubing

AMS 5581 tubing

AMS 5581 tubing

Inconel 625 seamless tubing

Inconel 625 seamless tubing

Is AMS 5581 tubing costly? Why ?

AMS 5581 tubing is made of premium material due to its chemical composition and mechanical properties. They are costly because of the high performance they give in a wide range of environments. The tube has exceptional high temperature strength and shows good resistance to corrosion.

Also, a lot of complexity is involved in the manufacturing process to produce dimensionally accurate tubes. Finally, the limited number of specialized DIN 2.4856 welded tube suppliers and high demand can increase the cost.

DIN 2.4856 welded tubes is available in ready stock as per ASTM B444 in 1mm to 8.18 mm wall thickness for usage at extremely high temperatures

Inconel 625 tube specification
Inconel 625 tube specification

 

Size Length Wall

Seamless: .188 to 1.500 " Welded: .250 to 7 "

6 to 12 meter Seamless: .028 to.083" Welded:.028 to .100 "
Specification Process MTC
ASTM B444 | ASME SB 444 seamless, hot rolled, annealed, welded EN 10204 3.1 & 3.2
According to the client's requirements, we offer nickel alloy 625 tube that is cut to length in any size or grade, explore available types
Frequently used types of alloy 625 tubing
DIN 2.4856 welded tube

DIN 2.4856 welded tube

  • Specifications: ASME SB444, ASTM B444, AMS 5581
  • OD: .188 to 1.500 inch (seamless)
  • Walls: .028 to .083 inch
Inconel 625 exhaust tubing

Inconel 625 exhaust tubing

  • Cold redrawn and seam welded
  • Coiled and straight
  • Seamless and annealed
UNS N06625 tube

UNS N06625 tube

  • Specifications: AMS 5581
  • Walls: .028 to.100 inch
  • OD: .250 to 7 inch(welded)
Are nickel 625 heat exchanger tubes difficult to get in odd sizes? You may now order online at dealer prices, so don't worry, see its properties
AMS 5581 tubing chemical properties
Ni Mn Cr Mo Ti Nb+Ta Fe C Si Ph S Co Al
Max 0.10 - 5 0.40 10 23 4.15 0.50 0.50 0.015 0.40 0.015 1.0
Min - Bal - - 8 20 3.15 - - - - - -
Inconel 625 seamless tube mechanical properties
Tensile Strength Hardness Reduction of area 0.2% Proof Stress Elongation
MPA HRB % MPA %
Min Min Min Min Min
827 145 40 414 30
DIN 2.4856 welded tube equivalent
STANDARD GOST JIS WERKSTOFF NR. BS UNS AFNOR EN
Inconel 625 ХН75МБТЮ NCF 625 2.4856 NA 21 N06625 NC22DNB4MNiCr22Mo9Nb NiCr23Fe
Why is Inconel 625 seamless tubing used?

The inconel 625 seamless tubing shows good corrosion resistance in acidic, alkaline and seawater environments. They can maintain their strength in high temperature conditions. The material has excellent mechanical properties and is suitable for cryogenic applications.

Thus, the seamless nickel 625 heat exchanger tube is used in industries like aerospace, chemical processing, oil & gas, etc.

What is the difference between Inconel 625 Grade 1 and Grade 2?

The main difference between inconel 625 grade 1 and grade 2 is in the annealing temperature. For grade 1, the min annealing temperature is 871 °C whereas for grade 2 nickel alloy 625 boiler tube, it is 1093 °C. By annealing at higher temperatures, the mechanical properties of grade 2 is slightly lower.

Thus, annealing the grade 1 2.4856 inconel 625 bright annealed tube at a higher temperature will convert it to grade 2.

What is the strength of alloy 625 tube?

The strength of the alloy 625 tube can vary with the manufacturing process, heat treatment and specific dimensions. It has tensile strength within the range of 827-965 MPa. Whereas, the yield strength is between 414-517 Mpa. The hardness of the tube can vary between 150-190 HB.

Weight chart of Inconel 625 tubing
WALL DIMENSIONS WEIGHT PER WALL DIMENSIONS WEIGHT PER
(MM) (MM) METRE (KG) (MM) (MM) METRE (KG)
1.50 12.7 x 12.7 0.55 1.50 40 x40 1.85
1.20 12.7 x 12.7 0.44 1.20 40 x40 1.49
1.50 15 x 15 0.65 3.00 40 x40 3.75
1.20 15 x 15 0.53 2.00 40 x40 2.45
1.20 20 x 20 0.71 1.50 50 x50 2.32
2.00 20 x 20 1.19 3.00 50 x50 4.65
1.50 20 x 20 0.88 2.00 50 x50 3.08
1.20 25 x 25 0.92 2.00 60 x60 3.71
2.00 25 x 25 1.49 3.00 70 x70 6.53
1.50 25 x 25 1.14 3.00 60 x60 5.49
3.00 25 x 25 2.20 2.00 80 x80 4.98
1.50 30 x 30 1.37 2.00 100 x 100 6.40
1.20 30 x 30 1.10 3.00 80 x80 7.53
3.00 30 x 30 2.72
2.00 30 x 30 1.84 3.00 100 x 100 9.53
Value added services for Inconel 625 exhaust tubing
  • Beveling
  • can be polished per customer
  • Honing/ turning process
  • Ultrasonic Testing (UT)
  • PMI testing
  • We cut to your exact dimension
  • Heat treating & annealing
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