Product Overview
Some alloys are fine at room temperature. Inconel X750 is the one engineers specify when "fine" is not good enough. A precipitation-hardenable nickel-chromium alloy (UNS N07750, W.Nr. 2.4669), it keeps useful strength up to 1,800°F and resists oxidation long after conventional stainless tubing has scaled and softened.
Our cold-drawn, seamless pipe is precipitation-treated to AMS 5582 before it leaves the floor - minimum 155 ksi tensile strength, 100 ksi yield strength, and not a single weld seam along the whole length.
At a glance:
Temperature class - service-proven to 1,300°F; oxidation resistance to 1,800°F
Strength - ≥ 155 ksi tensile / ≥ 100 ksi yield (precipitation treated)
Form - seamless, cold-drawn, weld-free for the full length
Condition - precipitation hardened or annealed, per your process need
Supply - outside diameter, wall and length cut to your drawing
Chemical Composition&Mechanical Properties
Chemical Composition
|
Element |
Content (%) |
|---|---|
|
Nickel (+ Cobalt) |
70.0 min |
|
Chromium |
14.0 – 17.0 |
|
Iron |
5.0 – 9.0 |
|
Titanium |
2.25 – 2.75 |
|
Aluminum |
0.40 – 1.00 |
|
Niobium (+ Tantalum) |
0.70 – 1.20 |
|
Manganese |
1.00 max |
|
Silicon |
0.50 max |
|
Copper |
0.50 max |
|
Carbon |
0.08 max |
|
Sulfur |
0.01 max |
|
Cobalt |
1.00 max |
What this mix actually does: nickel carries the matrix and feeds the γ′ precipitates that give X750 its strength; chromium builds the oxide scale that blocks high-temperature attack; titanium and aluminum do the heavy lifting during aging; niobium refines grain structure and adds a further strength push.
Mechanical Properties
Seamless tubing is supplied precipitation-treated per AMS 5582 (1300°F / 20 h, air cool). Guaranteed room-temperature minimums:
|
Property |
Minimum Value |
|---|---|
|
Tensile strength |
155 ksi (≈ 1069 MPa) |
|
Yield strength (0.2% offset) |
100 ksi (≈ 690 MPa) |
|
Elongation - full tube specimen |
20% |
|
Elongation - strip specimen |
15% |
|
Stress-rupture life (1350°F / 45 ksi) |
23 h |
|
Test Temperature |
Tensile Strength (ksi) |
Yield Strength 0.2% (ksi) |
|---|---|---|
|
Room temperature |
174 |
118.5 |
|
400°F |
165.5 |
111.5 |
|
800°F |
156 |
107.5 |
|
1000°F |
152 |
105 |
|
1200°F |
136.5 |
103 |
Physical constants worth knowing: density 8.28 g/cm³ · melting range 1393 – 1427°C · elastic modulus ≈ 31,000 ksi at room temperature.
Standards and Certification
Material can be supplied to ASTM B637 / ASME SB637, AMS 5582 (seamless tubing), AMS 5667 – 5671, ISO 9723 – 9725 and EN 10269. Mill test certificates and full traceability accompany every lot.
Applications
An Inconel X750 seamless pipe earns its keep where heat, stress and corrosion meet. Typical service roles include:
- Gas turbines - rotor blades, wheels, bolts and structural members
- Rocket engine thrust chambers and nozzle components
- Aircraft thrust reversers and hot-air ducting systems
- Large pressure vessels and heat-exchanger internals
- Heat-treating fixtures, forming tools and extrusion dies
- Springs and fasteners - from sub-zero service to 1,200°F
- Chemical processing duty where chloride stress cracking rules out stainless
For most of these jobs, the selection question comes down to one thing: will the pipe hold its strength at operating temperature? Inconel X750 seamless pipe answers yes - comfortably, at 1,300°F and beyond.
About Jiangsu Cunrui Metal Products Co., Ltd.
Our Company & Facility
At Jiangsu Cunrui Metal Products Co., Ltd., we believe that premium materials are born from rigorous process control. Located in the heart of China's manufacturing hub in Jiangsu, we are not just a supplier; we are a dedicated manufacturer with decades of metallurgical expertise. Our state-of-the-art facility integrates vacuum melting, precision cold rolling, and seamless extrusion under one roof. Every batch of our Inconel X750 seamless pipe undergoes stringent non-destructive testing and chemical analysis, ensuring that what you receive meets or exceeds international standards like ASTM B163 and AMS 5583. We take pride in our traceability-every pipe carries a unique heat number, giving you complete confidence in your supply chain.
Business Scope
Beyond Inconel X750, Jiangsu Cunrui supplies:
Stainless steel seamless and welded pipe, tube, sheet and coil - 201, 304, 316L, 321, 904L and more
Nickel and super-alloy grades including Inconel, Monel and Hastelloy series
Titanium and aluminum tubing (GR2 / GR5, 6061 / 6063)
Carbon steel pipe for line service (API 5L, ASTM A106 / A333)
Processing services - cutting, slitting, bending, welding, punching, grinding, embossing
OEM / ODM fabrication to drawing; FOB, CIF and DDP terms; export-grade packing
One inquiry, one responsible contact, one complete answer. That is how we prefer to work.
Frequently Asked Questions
Q: What is the difference between your seamless pipe and welded tubing?
A: Our Inconel X750 seamless pipe is produced through extrusion and cold-drawing, meaning there is no weld seam. This eliminates the risk of weld-line corrosion and provides superior pressure containment and uniform grain structure, which is critical for aerospace and nuclear applications.
Q: Can you provide material in different heat treatment conditions?
A: Absolutely. We typically supply in Solution Treated + Aged (Condition A) for maximum strength. However, we can also provide Solution Treated only if you plan to perform aging after cold forming or machining. Just let us know your specific processing route.
Q: What is your typical lead time for a custom order?
A: For standard sizes, we often have stock or can deliver in 2-3 weeks. Custom dimensions or large quantities typically take 4-6 weeks depending on the production schedule. We always provide a precise timeline before you commit.
Q: Do you offer third-party testing?
A: Yes, we welcome SGS, TÜV, or BV inspections at our facility. We also provide comprehensive mill test reports including chemical composition, tensile tests, hydrostatic testing, and eddy-current/ultrasonic results.
