An Inconel 600 Stud Bolt vs an Inconel 625 Stud Bolt
An Inconel 600 Stud Bolt vs an Inconel 625 Stud Bolt
Inconel 600 Stud studs are typically used in high-temperature environments, while Inconel 625 Stud studs are better suited for environments requiring higher strength and corrosion resistance, especially in chemical and marine environments. The main difference lies in their composition: the 625 Stud studs contain molybdenum and niobium, significantly improving their strength and corrosion resistance under harsh conditions, while the 600 Stud studs are a simpler alloy composed of nickel, chromium, and iron. This also makes the 625 Stud studs more expensive.
Will Inconel 600 rust?
The limiting chemical composition of the Inconel 600 alloy is shown in Table 1. Its high nickel content enables it to resist corrosion from a wide range of organic and inorganic compounds, and it is virtually free from chloride stress corrosion cracking.
In terms of corrosion resistance, Inconel 625 bolts are among the best corrosion-resistant models in the Inconel alloy lineup, capable of withstanding the erosion of various strong hot acids. While its corrosion resistance is not as good as Hastelloy C276 bolts, Inconel 625 bolts offer superior high-temperature resistance. Comparing Inconel 600 and Inconel 625 bolts, Inconel 600 is the preferred high-temperature nickel-based alloy, with a maximum temperature resistance of 2000°F, while Inconel 625's maximum temperature resistance is 1800°F.
Inconel 600/625 stud bolts are high-strength fasteners made of nickel-based alloys, renowned for their superior corrosion resistance, oxidation resistance, and high-temperature resistance. These stud bolts, with their excellent mechanical properties and durability, are widely used in aerospace, chemical, and marine industries. Inconel 600/625 stud bolts can withstand harsh environments, providing a reliable fastening solution for critical industrial applications.
At Gnee Steel, Inconel 600/625 stud bolts are packaged according to customer specifications to ensure protection against rust and damage during transportation. They are securely packed in wooden pallets and cartons, further covered with plastic film to maintain their integrity. We prioritize rapid delivery and provide the necessary documentation, including manufacturer technical certificates, raw material certificates, 100% radiographic testing reports, and third-party inspection reports, to meet stringent quality standards and customer requirements.
Inconel 600 / 625 Stud Bolts Specification
| Specification | ASTM B166, B446 / ASME SB166, B446 |
| Standard | all International Standards and ASTM, DIN, BS |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Length | 3 mm to 200 mm | Custom Sizes |
| DIN Standard | DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration |
ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| UTS | NPT, UNS, UNF, UNC, UNEF, NPTF |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| ISO | ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards |
| Threads | METRIC, BSW, UNC, UNF, BSF or as required |
| Surface Coating | Cadmium Coating Hot Dipped Galvanizing Coating Ptfe Coated Phosphate Coating Teflon Coating Xylon Coating Zinc Coating |
Inconel 600 / 625 Stud Bolts Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Inconel 600 | 2.4816 | N06600 | NCF 600 | NA 13 | МНЖМц 28-2,5-1,5 | NC15FE11M | NiCr15Fe |
| Inconel 601 | 2.4851 | N06601 | NCF 601 | NA 49 | XH60BT | NC23FeA | NiCr23Fe |
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NA 21 | ХН75МБТЮ | NC22DNB4M | NiCr22Mo9Nb |
Inconel 600 / 625 Stud Bolts Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Inconel 600 | 0.15 max | 1.00 max | 0.50 max | 0.015max | 0.50 max | 6.00 – 10.00 | 72.00 min | 14.00 – 17.00 |
| Inconel 601 | 0.10 max | 1.0 max | 0.5 max | 0.015 max | 1.0 max | Balance | 58.0 – 63.0 | 21.0 – 25.0 |
| Inconel 625 | 0.10 max | 0.50 max | 0.50 max | 0.015 max | – | 5.0 max | 58.0 min | 20.0 – 23.0 |
Inconel 600 / 625 Stud Bolts Mechanical Properties
| Element | Density | Melting Point | Tensile Strengtd | Yield Strengtd (0.2%Offset) | Elongation |
| Inconel 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
| Inconel 601 | 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30 % |
| Inconel 625 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
Inconel 600 / 625 Stud Bolts Types
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
📦 Packaging and Shipping
All stainless steel 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 is a supplier of Inconel 600 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with Inconel 600 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells Inconel 600, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
