Inconel tubing brief introduction
Inconel tubing of Younglee is seamless tube made of inconel alloys, which are nonmagnetic, high corrosion resistant, heat resistant and oxidation resistant, nickel-based alloys.
Inconel tube has high strength and toughness in the extreme high temperature applications. And Inconel alloys have excellent fatigue strength and stress-corrosion cracking resistance to chloride ions, so nickel alloy inconel tubing is suitable for conveying various solutions containing Cl and caustic soda with concentration <70% and many other fluids.
As one of the first class inconel tubing suppliers and manufacturers in China, Younglee manufactures inconel pipes with size range O.D 5 mm – 50.8 mm in most popular inconel alloys, including inconel 600, inconel 625 and inconel 718.
Inconel tubing main series
Here below are details of the main three series of inconel pipe /tubing our factory supplies:
Inconel 625 tubing
We are one of the leading quality inconel 625 tube suppliers in China, our inconel 625 tubing is focused on small metric tubes sizes and imperial sizes.
Inconel 625 tubing sizes
- Inconel 625 pipe imperial sizes: OD 1/4″ x WT 0.035″, 3/8″ x 0.035″, 1/2″ x 0.035″, 1/2″ x 0.049″, 5/8″ x 0.035″, 5/8″ x 0.049″, 3/4″ x 0.065″, 5/16″ x 0.035″, 5/16″ x 0.028″;
- Inconel 625 tube metric sizes: OD 6mm x WT 1mm, OD 8mm x WT 1mm, OD10mm x WT 1mm, OD 12mm x WT 1mm, OD 15mm x WT 1mm, OD 16mm x WT 1mm
Inconel 625 pipe standards
We manufacture and supply inconel 625 pipes with most popular standards as below.
- US /ASTM Standards: ASTM B444, ASTM B751, ASTM B829, ASTM B704, ASTM B705, ASTM B755, AMS 5581
- ISO and other standards: ISO 6207, VdTüV 499, BS 3074NA21, DIN 17751, WERKSTOFF Nr 2.4856
Inconel 625 tubing chemical composition
| C% Max. | Si% Max. | Mn% Max. | P% Max. | S% Max. | Al% Max. | Cr | Cu | Fe% Max. | Mo | Nb | Ti% Max. | Ni |
| 0.1 | 0.5 | 0.5 | 0.015 | 0.015 | 0.4 | 20 -23 | 1.0-1.4 | 5 | 8-10 | 3.15-4.15 | 0.4 | Balance |
Inconel 625 is known as Alloy 625 also, so our alloy 625 tubing actually are with the same chemical composition as above.
Inconel 625 tubes mechanical properties
| Heat Treatment | Annealed (Grade1) | Solution-treated (Grade 2) | ||
| Tensile Rm | 827 | MPa (min) | 690 | MPa (min) |
| R.p. 0.2% Yield | 414 | MPa (min) | 276 | MPa (min) |
| Elongation (2” or 4D gl) | 30 | % (min) | 30 | % (min) |
Inconel 625 is known as Alloy 625 also, so our alloy 625 tubing actually are with totally the same mechanical properties as above chart.
Inconel 600 tubing
As one of the professional inconel 600 tube suppliers in China, we produce and sell inconel 600 tubing to our customers in many countries.
Inconel 600 tubing dimensions
- Inconel 600 tubing imperial dimensions: OD 1/4″ x WT 0.035″, 3/8″ x 0.035″, 1/2″ x 0.035″, 1/2″ x 0.049″, 5/8″ x 0.035″, 5/8″ x 0.049″, 3/4″ x 0.065″, 5/16″ x 0.035″, 5/16″ x 0.028″;
- Inconel 600 pipe metric dimensions: OD 6mm x WT 1mm, OD 8mm x WT 1mm, OD10mm x WT 1mm, OD 12mm x WT 1mm, OD 15mm x WT 1mm, OD 16mm x WT 1mm
Inconel 600 pipe standards
We produce and sale inconel 600 pipes with various popular standards as below.
- ASTM B167, ASTM B829, ASTM B517, ASTM B775, ASTM B163
- BS 3074, BS3072-3076 (NA14) DIN 17742, DIN 17750, DIN 17754 WERKSTOFF Nr 2.4816 TÜV 305 AFNOR-NC 15 Fe
- Other specifications upon customer’s request.
Inconel 600 tubing / alloy 600 tubing chemical composition (wt%)
| Nickel min. | Chromium | Iron | Copper | Sulfur | Carbon | Manganese | Silicone |
| 72 | 14.9-17.0 | 6.0-10.0 | 0.5 | 0.015 | 0.15 | 1 | 0.5 |
Inconel 600 tubes / alloy 600 tubing mechanical properties
| Heat treatment | Annealed | |
| Tensile Rm | 110 | ksi (min) |
| Tensile Rm | 738 | MPa (min) |
| R.p. 0.2% Yield | 37 | ksi (min) |
| R.p. 0.2% Yield | 255 | MPa (min) |
| Elongation (2” or 4D gl) | 45 | % (min) |
Inconel 600 tubing is known as alloy 600 tubing also, because Inconel 600 is the same as alloy 600. The chemical composition and mechanical properties are the same.
Inconel 718 tube
Inconel 718 tube is an important inconel tube made of nickel-chromium alloy. Our inconel pipe can be heat-treated to give high strength, good corrosion resistance, ease of formability and which can be welded with good resistance to strain age cracking. The inconel pipe can be used at temperatures up to 700ºC.
As one of the leading inconel tube suppliers and manufacturers in China, we also produce and sell inconel 718 tube to our customers home and abroad.
Inconel 718 tube sizes
Inconel 718 pipe standards
We produce and sale inconel 718 seamless tube with various popular standards as below.
- AMS 5589, AMS 5590
- WERKSTOFF Nr 2.4668
- Other specifications upon customer’s request.
Inconel 718 tube chemical composition (wt% max.)
| Ni | Cr | Fe | Mo | Nb | Al | Ti | S | C | Mn | Si | P | Boron |
| 50.0-55.0 | 17.0-21.0 | 8.5 | 7.0-9.5 | 2.75-4.0 | 0.035 | 1.0-1.7 | 0.01 | 0.03 | 0.035 | 0.35 | 0.015 | 0.006 |
Inconel 718 pipe mechanical properties
| Heat Treatment | Solution-annealed | |
| Tensile Rm | 155 | ksi (min) |
| Tensile Rm | 1069 | MPa (min) |
| R.p. 0.2% Yield | 95 | ksi (min) |
| R.p. 0.2% Yield | 655 | MPa (min) |
| Elongation (2” or 4D gl) | 30 | % (min) |