UNS N08825 Round Bars, also known as Incoloy 825 or Alloy 825, are bars made up of nickel-iron-chromium alloys designed to resist corrosion in harsh conditions. As per ASTM B425 / ASME SB425 standard, these round bars come with molybdenum, copper, and titanium for resisting a wide range of chemicals. The available forms of the bar include hot finished, cold drawn, centerless ground, and peeled round bars, thus offering options in terms of dimension and surface finish. Every product comes with material traceability and EN 10204 3.1 Mill Test Certificate (MTC). These bars are ideal for chemical processing and pollution control applications among others where corrosion resistance is critical. Amardeep Steel supplies UNS N08825 Round Bars with consistent quality and documentation.
Technical Data
Specifications of UNS N08825 Round Bar
Attribute | Specification Details |
|---|---|
Grade / Alloy | UNS N08825 / Incoloy 825 / Alloy 825 / Werkstoff Nr. 2.4858 |
Alloy Family | Nickel-Iron-Chromium (Ni-Fe-Cr) with Mo, Cu, and Ti additions |
Governing Standards | ASTM B425 / ASME SB425 (Rod and Bar), ASTM B564 / ASME SB564 (Forgings) |
Diameter Range | 6 mm to 350 mm (0.25" to 14") in stock; custom sizes up to 500 mm available on order |
Delivery Conditions | Solution Annealed, Hot-Finished, Cold-Drawn / Cold-Worked |
Surface Finishes | Black, Peeled, Centerless Ground, Polished, Pickled |
Tolerance Classes | ISO h8, h9, h10, h11, k11, k12 (or per ASTM B425 / EN 10278) |
Certification | EN 10204 3.1 MTC, NABL accredited laboratory test reports, TPI (Third Party Inspection) available |
Chemical Compositions of UNS N08825 Round Bar
Cr | Ni | Ti | Mn | S | MB | Al | Cu | Fe | Si | C |
|---|---|---|---|---|---|---|---|---|---|---|
19.5 – 23.5 | 38.0 – 46.0 | 0.6 – 1.2 | 1.0 max | 0.03 max | 2.5 – 3.5 | 0.2 max | 1.5 – 3.0 | 22.0 min | 0.5 max | 0.05 max |
UNS N08825 Round Bar Mechanical Properties
Property | Melting Point | Density | Tensile Strength, min | Yield Strength (0.2% Offset), min | Elongation, min |
|---|---|---|---|---|---|
Value | 1,400 °C (2,550 °F) | 8.14 g/cm³ | 85,000 psi (586 MPa) | 35,000 psi (241 MPa) | 30 % |
Equivalent Grades of UNS N08825 Round Bar
JIS | AFNOR | BS | WERKSTOFF NR. | GOST | EN | OR | UNS |
|---|---|---|---|---|---|---|---|
NCF 825 | NFE30C20DUM | NA 16 | 2.4858 | ЭП703 | NiCr21Mo | XH38BT | N08825 |
Size Chart of UNS N08825 Round Bar
Size (Inches) | Weight per Foot (lbs) | Weight per 12′ Length (lbs) |
|---|---|---|
3/16″ | 0.0104 | 1.0248 |
1/4″ | 0.0180 | 2.0160 |
5/16″ | 0.0290 | 3.0480 |
1/2″ | 0.0740 | 8.0880 |
9/16″ | 0.0930 | 11.0160 |
11/16″ | 1.0390 | 16.0680 |
7/8″ | 2.0300 | 27.0600 |
1″ | 2.0900 | 34.0800 |
1-1/16″ | 3.0300 | 39.0600 |
1-1/8″ | 3.0700 | 44.0400 |
1-1/4″ | 4.0625 | 55.0200 |
1-7/16″ | 6.0100 | 73.0200 |
1-5/8″ | 7.0800 | 93.0600 |
1-7/8″ | 10.0400 | 124.0800 |
2″ | 11.0800 | 141.0600 |
2-1/4″ | 14.0920 | 179.0040 |
2-1/2″ | 18.0420 | 221.0040 |
3″ | 26.0500 | 318.0360 |
Weight Chart of UNS N08825 Round Bar
Diameter | Listed Weight per Meter (kg) | Corrected Theoretical Weight (kg/m)* |
|---|---|---|
3″ (76.2 mm) | 36.00 | 37.12 |
3 1/4″ (82.55 mm) | 42.90 | 43.57 |
3 1/2″ (88.9 mm) | 49.80 | 50.53 |
3 3/4″ (95.25 mm) | 57.10 | 58.00 |
4″ (101.6 mm) | 65.00 | 65.99 |
4 1/4″ (107.95 mm) | 73.40 | 74.50 |
4 1/2″ (114.3 mm) | 82.30 | 83.52 |
5″ (127.0 mm) | 102.00 | 103.11 |
5 1/4″ (133.35 mm) | 111.98 | 113.68 |
5 1/2″ (139.7 mm) | 123.00 | 124.77 |
5 3/4″ (146.05 mm) | 134.00 | 136.37 |
6″ (152.4 mm) | 146.00 | 148.49 |
6 1/2″ (165.1 mm) | 172.00 | 174.26 |
7″ (177.8 mm) | 199.00 | 202.11 |
7 1/2″ (190.5 mm) | 229.00 | 232.01 |
8″ (203.2 mm) | 260.00 | 263.97 |
8 1/2″ (215.9 mm) | 294.00 | 298.00 |
9″ (228.6 mm) | 329.00 | 334.09 |
10″ (254.0 mm) | 406.00 | 412.46 |
11″ (279.4 mm) | 492.00 | 499.08 |
12″ (304.8 mm) | 585.00 | 593.94 |
340 mm (13.386″) | 728.00 | 739.05 |
16″ (406.4 mm) | 1040.00 | 1055.90 |
Applications and Industrial Uses of UNS N08825 Round Bar
- Chemical Processing Equipment
- Acid Production Plants
- Pollution Control Equipment
- Phosphoric Acid Processing Equipment
- Nuclear Fuel Reprocessing Equipment
- Petroleum Refining Equipment
- Heat Exchangers and Process Components
- Waste Treatment and Scrubber Systems
Frequently Asked Questions
What is UNS N08825 Round Bar?
UNS N08825 Round Bar is a nickel-iron-chromium alloy bar known for strong corrosion resistance in aggressive chemical environments.
What is UNS N08825 also known as?
UNS N08825 is commonly known as Incoloy 825 or Alloy 825.
What is the ASTM standard for UNS N08825 Round Bar?
UNS N08825 Round Bar is commonly manufactured according to ASTM B425 / ASME SB425.
Is UNS N08825 Round Bar corrosion resistant?
Yes, it offers excellent resistance to acids, chloride-containing environments, and general corrosion.
What is the difference between Incoloy 825 and Inconel 625?
Incoloy 825 contains iron and copper for strong chemical corrosion resistance, while Inconel 625 has higher nickel, chromium, and molybdenum for greater strength and severe corrosion resistance.
Is Incoloy 825 suitable for sulfuric and phosphoric acid applications?
Yes, Incoloy 825 is widely used in equipment exposed to sulfuric and phosphoric acid environments.
Can UNS N08825 Round Bar be used in sour service?
Yes, UNS N08825 can be used in selected sour-service environments, subject to applicable specifications and service conditions.
