Inconel 600 Stub EndASTM B366 · ASME B16.9 · Manufacturer, stockist & exporter, India
Alloy 600 · UNS N06600
An Inconel 600 stub end is a short pipe length with a flared lap that works with a lap joint flange, made from Inconel 600 to ASTM B366 WPNCI. Stub ends are welded to the pipe and backed by a loose lap joint flange. Type A (long pattern, ASME B16.9) and short-pattern MSS SP-43 stub ends are the common choices.
- ASTM B366
- ASME B16.9
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an Inconel 600 Stub End?
- What it is
- A short pipe length with a flared lap that works with a lap joint flange
- Material
- ASTM B366 WPNCI
- Dimensions
- ASME B16.9 · MSS SP-43
- Grade
- Inconel 600 · UNS N06600
- Best at
- High-temperature oxidation, caustic and nuclear service
Inconel 600 Stub End Specification
| Product | Inconel 600 Stub End |
|---|---|
| Material standard | ASTM B366 WPNCI |
| Dimensional standard | ASME B16.9 · MSS SP-43 |
| Sizes | ½" – 48" |
| Wall / class | Sch 5S – XXS, to match pipe |
| Ends | Bevelled to ASME B16.25 |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Stub End
Stub ends are welded to the pipe and backed by a loose lap joint flange. Type A (long pattern, ASME B16.9) and short-pattern MSS SP-43 stub ends are the common choices.
- Long pattern (ASME B16.9) and short pattern (MSS SP-43)
- Type A, B and C lap designs
- Used with a carbon-steel backing flange to save alloy
Inconel 600 Stub End Chemical Composition
| Element | Weight % |
|---|---|
| Nickel (+Co) | 72.0 min |
| Chromium | 14.0 – 17.0 |
| Iron | 6.0 – 10.0 |
| Carbon | 0.15 max |
| Manganese | 1.0 max |
| Silicon | 0.5 max |
| Copper | 0.5 max |
| Sulphur | 0.015 max |
Inconel 600 Stub End Mechanical Properties
| Annealed plate | Value |
|---|---|
| Tensile strength | 550 MPa · 80 ksi |
| Yield strength 0.2% | 240 MPa · 35 ksi |
| Elongation | 30% |
Full chemistry, properties and equivalents are on the Inconel 600 grade page.
Other Inconel 600 pipe fittings
Inconel 600 Stub Ends for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiInconel 600 Stub End — questions buyers ask
Long or short stub end?
Long-pattern stub ends to ASME B16.9 suit most piping; short-pattern MSS SP-43 stub ends save alloy and space in low-pressure lines.
Which standard covers Inconel 600 stub ends?
The material is ASTM B366 WPNCI; dimensions follow ASME B16.9 · MSS SP-43. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Inconel 600 stub end?
The alloy price, the size and schedule or class, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026