Looking for a reliable manufacturer of seamless Nimonic 75/80A steel tubing? We offer high-quality nickel alloy tubing designed for extreme high-temperature and high-pressure environments. Whether your project requires the superior oxidation resistance of Nimonic 75 (Alloy 75/GH3030) or the excellent creep rupture strength of Nimonic 80A (Alloy 80A/GH4080A), our ISO-certified facility provides precision drawing solutions that exceed industry standards.
As a high-volume exporter of high-temperature alloys, Gnee Steel offers both factory-direct pricing and the technical precision required for aerospace, power generation, and industrial heating applications.
🚀 Request a direct sales quote for GH3030 seamless steel pipe from the manufacturer
Difference between Nimonic 75 and 80A seamless steel pipes
Difference between Nimonic 75 and 80A seamless steel pipes
Both Nimonic 75 and 80A seamless tubes are nickel-chromium-based superalloy tubes, commonly used in high-temperature environments, but they differ significantly in their strengthening mechanisms, temperature resistance, and applications. Nimonic 80A tubes are precipitation-strengthened alloys with excellent strength at higher temperatures (up to 815–1050°C), while Nimonic 75 tubes are solution-strengthened alloys typically used for medium-strength applications with temperatures up to 1000°C.
What is NIMONIC 75 material?
NIMONIC 75 alloy is an 80/20 nickel-chromium alloy with added titanium and carbon. This alloy was originally introduced in the 1940s for the manufacture of turbine blades. It is easy to machine and weld, and possesses good corrosion resistance, mechanical properties, and heat resistance.
1. Specification of Nimonic 75 / 80A Pipes
2. Inventory status of Nimonic 75/80A tubing
Nimonic 75 / 80A Seamless Pipes
ASTM B619 Nimonic 80A Seamless Pipe
Nimonic 75 Seamless Pipe
Nimonic 80A Thin Wall Seamless Pipes
Nimonic 75 Seamless Piping
UNS N06075 Seamless Pipe
ASME B619 Nimonic 75 Seamless Pipes
UNS N07080 Seamless Pipe
Nimonic 75 / 80A Welded Pipes
Nimonic 80A Welded Pipe
Nimonic 75 Welded Pipe
Nimonic 75 Thin Wall Welded Pipes
ASTM B622 Nimonic 75 Welded Pipe
UNS N06075 Welded Pipe
75 Nimonic Welded Pipe
ASME SB622 Nimonic 75 Welded Pipes
Nimonic 75 / 80A ERW Pipes
Nimonic Alloy 2.4951 ERW Pipe
Nimonic 80A ERW Pipe
Nimonic 75 ERW Pipe
Nimonic 2.4951 ERW Pipe
UNS N06075 ERW Pipe
Nimonic 75 Electric Resistance Welded Pipe
ASTM B622 Nimonic 80A ERW Pipe
75 Nimonic ERW Pipe
Nimonic 75 / 80A EFW Pipes
Nimonic 75 EFW Pipe
UNS N07080 EFW Pipe
Nimonic 80A EFW Pipe
Nimonic 75 Electric Fusion Welding Pipe
Nimonic 2.4951 EFW Pipe
Nimonic 80A EFW Pipes
Nimonic 75 Thin Wall EFW Pipes
75 Nimonic EFW Pipe
Nimonic 75 / 80A Round Pipes
ASTM B619 Nimonic 80A Round Pipe
Nimonic 80A Round Pipe
Nimonic 2.4951 Round Pipe
Nimonic 75 Round Pipe
ASME B619 Nimonic 80A Round Pipes
Nimonic 75 / 80A Hollow Pipes
Nimonic 2.4952 Hollow Pipe
UNS N06075 Hollow Pipe
ASME B619 Nimonic 80A Hollow Pipes
ASTM B619 Nimonic75 Hollow Pipe
Nimonic 80A Round Hollow Pipe
Nimonic 75 Custom Hollow Pipe
Nimonic 80A Hollow Pipe
Nimonic 80A Hollow Section Pipes
3. Equivalent Grades Nimonic 75 / 80A Pipes
| STANDARD | WERKSTOFF NR. | UNS |
| Nimonic 75 | 2.4951 / 2.4630 | N06075 |
| Nimonic 80A | 2.4952 | N07080 |
4. Chemical Composition of Nimonic 75 / 80A Pipes
| Grade | C | Mn | Si | Cu | Fe | Ni | Cr | Ti |
| Nimonic 75 | 0.08-0.15 | 1.0 max | 1.0 max | 0.5 max | 5.0 max | Bal | 18.0-21.0 | 0.2-0.6 |
| Nimonic 80A | 0.1 max | 1.0 max | 1.0 max | 0.2 max | 3.0 max | Bal | 18.0-21.0 | – |
5. Mechanical Properties of Nimonic 75 / 80A Piping
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.37g/cm3 | 1340 – 1380 | Psi – 104,000 | Psi – 40,000 | 42 % |
6. Nimonic 75 / 80A Seamless Pipe Weight Chart
|
NPS |
Outside Diameter |
Wall Thickness |
Weight |
Weight |
|||
|
in |
mm |
in |
mm |
Sched |
kg/Mtr |
Lb/ft |
|
|
1/2″ |
0.840 |
21 |
0.109 |
2.769 |
40 STD |
1.268 |
0.851 |
|
0.147 |
3.734 |
80 STD |
1.621 |
1.088 |
|||
|
3/4″ |
1.050 |
27 |
0.113 |
2.870 |
40 STD |
1.684 |
1.131 |
|
0.154 |
3.912 |
80 STD |
2.195 |
1.474 |
|||
|
1″ |
1.315 |
33 |
0.133 |
3.378 |
40 STD |
2.501 |
1.679 |
|
0.179 |
4.547 |
80 STD |
3.325 |
2.172 |
|||
|
1 1/4″ |
1.660 |
42 |
0.140 |
3.556 |
40 STD |
3.385 |
2.273 |
|
0.191 |
4.851 |
80 STD |
4.464 |
2.997 |
|||
|
1 1/2″ |
1.900 |
48 |
0.145 |
3.683 |
40 STD |
4.048 |
2.718 |
|
0.200 |
5.080 |
80 STD |
5.409 |
3.361 |
|||
|
2″ |
2.375 |
60 |
0.154 |
3.912 |
40 STD |
5.441 |
3.653 |
|
0.218 |
5.537 |
80 STD |
7.480 |
5.022 |
|||
|
2 1/2″ |
2.875 |
73 |
0.203 |
5.516 |
40 STD |
8.629 |
5.793 |
|
0.276 |
7.010 |
80 STD |
11.411 |
7.661 |
|||
|
3″ |
3.500 |
89 |
0.216 |
5.486 |
40 STD |
11.284 |
7.576 |
|
0.300 |
7.620 |
80 STD |
15.272 |
10.253 |
|||
|
4″ |
4.500 |
114 |
0.237 |
6.020 |
16.073 |
10.790 |
|
|
0.337 |
8.560 |
22.318 |
14.983 |
||||
|
6″ |
6.625 |
168 |
0.188 |
4.775 |
19.252 |
12.924 |
|
|
0.203 |
5.516 |
20.739 |
13.923 |
||||
|
0.219 |
5.563 |
22.318 |
14.983 |
||||
|
0.250 |
6.350 |
25.354 |
17.021 |
||||
|
0.280 |
7.112 |
40 STD |
58.263 |
18.974 |
|||
|
0.312 |
7.925 |
31.334 |
21.036 |
||||
|
0.375 |
9.525 |
37.285 |
25.031 |
||||
|
0.432 |
10.973 |
80 XHY |
42.561 |
28.573 |
|||
|
0.500 |
12.700 |
48.719 |
32.708 |
||||
|
8″ |
8.625 |
219 |
0.188 |
4.775 |
25.233 |
16.940 |
|
|
0.203 |
5.156 |
27.198 |
18.259 |
||||
|
0.219 |
5.563 |
29.286 |
19.661 |
||||
|
0.250 |
6.350 |
20 |
33.308 |
22.361 |
|||
|
0.277 |
7.036 |
30 |
36.786 |
24.696 |
|||
|
0.322 |
8.179 |
40 |
42.352 |
28.554 |
|||
|
0.375 |
9.525 |
49.216 |
33.041 |
||||
|
0.406 |
10.312 |
60 |
53.085 |
35.638 |
|||
|
0.500 |
12.700 |
80 XHY |
64.627 |
43.388 |
|||
7. Nimonic 75 / 80A Pipe Supply Range
| Product Description | Wall Thickness, WT (in milimeter) | Outside Diamter, OD (in milimeter) | |
| Nimonic 75 / 80A Seamless Round Pipe/Tube | 0.05 to 30 | 6 to 630 | |
| Nimonic 75 / 80A Seamless Custom Pipe/Tube | 0.05 to 30 | 12.7 * 12.7 to 300 * 300 | |
| Nimonic 75 / 80A Seamless Custom Pipe/Tube | 0.05 to 30 | 10*20 to 100*200 | |
| Nimonic 75 / 80A Seamless Colour Coated Pipe/Tube | 0.05 to 30 | 6 to 630 | |
| Nimonic 75 / 80A Seamless Ornamental Tubes | 0.05 to 2.0 | 12.7 to 76.2 | |
| Nimonic 75 / 80A Seamless Electropolished Pipes/Tubes | 0.05 to 30 | 12.7 to 250 | |
| Nimonic 75 / 80A Seamless Slot Round Pipe/Tube | 0.05 to 2.0 | 12.7 to 76.2 | |
8. Nimonic 75 / 80A Pipe Price Range
| Nimonic 75 / 80A Pipes | ||||||
| Designation of Diameter | Outside Diameter | |||||
| Diameter | SCH 10S | |||||
| (B) | (A) | Meter | Weight Kg/Mtr | Wall | Price in | Price in |
| MM | Thk | INR/MTR | INR/KG | |||
| 1/8 | 6 | 10.03 | 0.027 | 1.2 | 80.5 – 110 | 300 – 400 |
| 1/4 | 8 | 13.7 | 0.049 | 1.65 | 110 – 200 | 200 – 300 |
| 3/8 | 10 | 17.2 | 0.063 | 1.65 | 169 – 250 | 250 – 320 |
| 1/2 | 15 | 21.3 | 1.02 | 2.11 | 234.8 – 289 | 220 – 320.5 |
| 3/4 | 20 | 26.7 | 1.3 | 2.11 | 300 – 350 | 220 – 300 |
| 1 | 25 | 33.4 | 2.13 | 2.77 | 459.9 – 600 | 200 – 400 |
| 11/4 | 32 | 24.2 | 2.73 | 2.77 | 527.9 – 600 | 200 – 250 |
| 11/2 | 40 | 48.3 | 3.16 | 2.77 | 611 – 750 | 205 – 300 |
| 2 | 50 | 60.03 | 3.99 | 2.77 | 797.75 – 810 | 205 – 300 |
| 21/2 | 65 | 73 | 5.34 | 3.05 | 1200.5 – 1300 | 205 – 300 |
| 3 | 80 | 88.9 | 6.56 | 3.05 | 1376 – 1566 | 205 – 300 |
| 31/2 | 90 | 101.6 | 7.53 | 3.05 | 1707.2 – 1890 | 200 – 350 |
| 4 | 100 | 114.3 | 8.5 | 3.05 | 1855 – 2000 | 220 – 300 |
| 5 | 125 | 141.3 | 11.74 | 3.4 | 2893.7 – 3000 | 205 – 310 |
| 6 | 150 | 168.3 | 14.04 | 3.4 | 3010 – 3500 | 240 – 350 |
| 8 | 200 | 219.1 | 20.077 | 3.76 | 5200.02 – 5500 | 220 – 300 |
| 10 | 250 | 273.1 | 28.2 | 4.19 | 8160 – 9000 | 300 – 350 |
| 12 | 300 | 323.9 | 36.54 | 4.57 | 10692.8 – 11000 | 300 – 350 |
| 14 | 350 | 355.6 | 41.99 | 4.78 | 12696.5 – 13566 | 320 – 360 |
| 16 | 400 | 406.4 | 48.07 | 4.78 | 15026.25 – 17655 | 325 – 430 |
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
Gnee Steel GH3030 Certificate
📦 Packaging and Shipping
All Nickel Based Alloy products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel GH3030 Product Packing
Contact us for the latest export price quote for GH3030 Alloy
FAQ
Q1: What is the equivalent grade for Nimonic 75 and 80A?
A: Nimonic 75 is functionally equivalent to GH3030 (China) and Alloy 75. Nimonic 80A corresponds to GH4080A and Alloy 80A. We can certify materials to multiple international standards simultaneously.
Q2: Can I get custom wall thicknesses for high-pressure systems?
A: Yes! As a custom manufacturer, we can precision-draw tubes to your exact Wall Thickness requirements to optimize weight and pressure ratings for your specific thermal system.
Q3: How do you handle international shipping and protection?
A: We use reinforced, seaworthy wooden crates. Every tube is sleeved in protective plastic to ensure your Bright Annealed (BA) finish arrives without a single scratch.
Q4: Do you support small-batch prototyping?
A: Absolutely. While we are a wholesale supplier, we support R&D and prototyping with low MOQs (Minimum Order Quantities) on our stocked materials.
