Sachiya Steel International is one of The Leading Manufacturer And Exporter Of High Quality Incoloy 825 Bolts And Nuts , which is has a high level of corrosion resistance. Cold forming in our Incoloy 825 Hex Head Bolts may be done using standard tooling although lain carbon tool steels are not recommended as they tend to produce galling. These Incoloy 825 Hex Head Nuts resists general corrosion, crevice corrosion, pitting, inter – granular corrosion, and stress – corrosion cracking in both oxidizing and reducing environments. Brittle phases may form in our Incoloy 825 Square Bolts at temperatures above 540 Degree C, so it is not normally used at these temperatures, where creep – rupture properties would be design factors.
These Incoloy 825 Square Nuts is a combination of nickel and chromium alloy that has excellent tensile strength and resistance to oxidation as well as carburization properties. Our Incoloy 825 U-Bolts is resistant to chloride stress – corrosion cracking and pitting, where the molybdenum as well aids resistance to pitting and crevice corrosion.
These Incoloy 825 Lock Nuts is often used in chemical process equipment, propeller shafts, spent nuclear fuel element recovery, tank trucks, and so on. Our Incoloy 825 Eye Bolts is characterized by good resistance to oxidizing and non – oxidizing hot acids. These Incoloy 825 Eye Nuts is the forerunner of many of the Molybdenum containing nickel iron chromium alloys which have seen service over the past century.
Alloy 825 Bolt/Nut Specifications |
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| Specifications | : | ASTM B 425 ASME SB 425 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
825 Incoloy Alloy Bolt/nut Chemical Composition
| Grade | C | Mn | Si | Fe | S | Cr | Cu | Ti | |
| 825 | min. | – | – | – | 22.0 | – | 19.5 | 1.5 | 0.6 |
| max. | 0.05 | 1.0 | 0.5 | – | 0.015 | 23.5 | 3.0 | 1.2 | |
Incoloy Alloy 825 Bolt/nut Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 825 | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa –220 | 30 | – | – |
Equivalent Grades for 825 Incoloy Bolt/nut
| Grade | UNS No | Old British | Euronorm | GOST | Japanese JIS | ||
| BS | En | No | AFNOR | ||||
| Incoloy 825 | N08825 | NA 16 | NiCr21Mo | 2.4858 | NFE30C20DUM | ЭП703 | NCF 825 |
Alloy 825 Bolt/Nut Application Industries
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
825 Incoloy Bolt/Nut Test Certificates
We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.
• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc
Material Testing
We at Sachiya Steel International ensure that all our materials go through strict quality tests before dispatching them to our clients.
• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
Documentation
• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)