What Is Inconel 625 Tubing?
Inconel 625 alloy tubing is available in a full range of specifications and sizes, from small-diameter capillary tubes (e.g., 1/8 inch outer diameter, 0.035 inch wall thickness) to large-diameter pipes (e.g., up to 18 inches or larger). Both seamless and welded types are available. Common outer diameters include 1/4 inch, 1/2 inch, 1 inch, etc., and various wall thicknesses are also offered. The tubing typically conforms to ASTM B444 or AMS 5581 standards and is suitable for a wide range of applications, from instrumentation to large-scale process piping.
Standards for Inconel 625 Tubing
| Standard | Description |
|---|---|
| ASTM B444 | Seamless and welded nickel-chromium-molybdenum alloy pipe and tube |
| ASTM B829 | General requirements for nickel alloy seamless pipe and tube |
| ASME SB444 | ASME equivalent of ASTM B444 |
| EN 10216-5 | Seamless tubes for pressure purposes (EN 2.4856) |
| UNS | N06625 |
| Material No. | 2.4856 |
Inconel 625 Tube Sizes
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16" , 1/8" , 3/16" |
| .020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
| .012 | 1/8" |
| .016 | 1/8" , 3/16" |
| .028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
| .035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
| .083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
| .095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
| .109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
| .120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
| .125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
| .134 | 1" |
| .250 | 3" |
| .375 | 3 1/2" |
Wall Thickness & Outer Diameter of Alloy 625 Tubing
| Types of inconel 625 Tube | Out diameter (OD) | Wall thickness | Length |
|---|---|---|---|
| NB Sizes (in stock) | 1/8" ~ 8" | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 | Upto 6 Meters |
| inconel 625 Seamless Tube (Custom Sizes) | 5.0mm ~ 203.2mm | As per requirement | Upto 6 Meters |
| inconel 625 Welded Tube (in Stock + Custom Sizes) | 5.0mm ~ 1219.2mm | 1.0 ~ 15.0 mm | Upto 6 Meters |
Inconel 625 Tube Pressure Rating
| Size mm |
Grade |
Maximum internal pressure, ksi |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 100°F | 200°F | 300°F | 400°F | 500°F | 600°F | 700°F | ||||
| 1.59 x 0.36 | N06625 | 19.21 | 19.21 | 19.02 | 18.83 | 18.54 | 18.15 | 17.77 | ||
| 3 x 0.5 | N06625 | 940 | 940 | 930 | 921 | 907 | 888 | 869 | ||
| 6 x1 | N06625 | 940 | 940 | 930 | 921 | 907 | 888 | 869 | ||
| 8x1 | N06625 | 681 | 681 | 675 | 668 | 658 | 644 | 630 | ||
| 8x2 | N06625 | 1476 | 1476 | 1462 | 1447 | 1425 | 1395 | 1366 | ||
| 10x1 | N06625 | 534 | 534 | 529 | 524 | 516 | 505 | 494 | ||
| 12x1 | N06625 | 440 | 440 | 435 | 431 | 424 | 415 | 407 | ||
| 16x1 | N06625 | 324 | 324 | 321 | 318 | 313 | 307 | 300 | ||
Chemical Composition of Inconel 625 (Typical)
| Element | Content (%) |
|---|---|
| Ni | ≥ 58.0 |
| Cr | 20.0 – 23.0 |
| Mo | 8.0 – 10.0 |
| Nb + Ta | 3.15 – 4.15 |
| Fe | ≤ 5.0 |
| C | ≤ 0.10 |
Mechanical Properties (Room Temperature)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 827 MPa |
| Yield Strength (0.2%) | ≥ 414 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 220 HB |
Inconel 625 UNS N06625 Tube Price Per Kg
| Price of Inconel 625 Tube | Inconel 625 UNS N06625 Tube Price in USD |
|---|---|
| INCONEL 625 SS 06, 35X0, 71 SVT DMD 436-45 (TUBES FOR MFG AIRCARFT PARTS) | $30.91 |
| TUBE INCONEL 625 SS- NC22DNB - HYPERTREMPE - DE 25.4 X EP 0.89 | $154.50 |
| WELDED NICKEL ALLOY TUBING (TUBE 1/4 OD X 0.149 THK, INCONEL-625, IN COIL FORM) | $57.62 |
| INCONEL 625 SS 9.52X0 . 71 (TUBES FOR MFG AIRCARFT PARTS) | $79.90 |
If you have project requirements for Inconel 625 tubes, we welcome your order. GNEE has a large inventory of popular products for you to choose from. Available in both seamless and welded forms, please contact our factory immediately for detailed chemical composition information and free samples. We offer competitive pricing and excellent service.
