Hastelloy Flat Bars
Typical applications for Hastelloy Flat Bars include heat exchanger jackets and baffles, pump shafts and valve components, reactor internals, structural supports in chemical plants, marine and desalination equipment, and high-purity pharmaceutical systems. Backed by Rose Metal Industries’ technical support, testing (MTC/PMI) and logistics, these flat bars offer long service life and reliable performance for demanding projects both in India (Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, Andaman & Nicobar Islands) and worldwide..
Dimensionally, Rose Metal Industries stocks a broad range of widths, thicknesses and lengths — from narrow strips for instrumentation to heavy flat bars used as structural members — with standard lengths up to 6,000 mm and custom cut-to-length options. Value-added services such as precision blanking, milling, drilling, grinding and surface finishing are available to reduce customer lead times and on-site fabrication work, making the product practical for EPC contractors and fabricators across Karnataka, Telangana and export projects..
Mechanically, Hastelloy flat bars provide a useful balance of tensile strength and ductility suitable for heavy fabrication and machining. Typical properties (vary with grade and temper) include high tensile and yield strengths, good elongation for forming/welding, and stable performance at elevated temperatures. These mechanical attributes allow flat bars to be machined into pump and valve components, structural supports, heat-exchanger parts and other critical hardware that must retain integrity under thermal and mechanical stress.
Chemically, Hastelloy flat bars feature a high nickel base alloyed with substantial amounts of molybdenum and chromium (grade dependent), often with additions of tungsten and small amounts of cobalt or iron. This alloying delivers outstanding resistance to pitting, crevice corrosion and stress-corrosion cracking in both oxidizing and reducing environments — including strong acids, chlorides and seawater — which is why these alloys are selected for coastal plants and offshore installations in Puducherry and the Andaman & Nicobar Islands as well as inland chemical hubs in Tamil Nadu and Andhra Pradesh.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | Hastelloy C-276 (UNS N10276), C-22 (UNS N06022), B-2 (UNS N10665), B-3 |
| Standards | ASTM B575 / B622 / B443 references, ASME/UNS, Customer specifications |
| Forms | Hot-rolled flat bars, cold-rolled, precision ground flat bars |
| Surface Finish | Mill finish, pickled & passivated, polished (on request) |
| Testing | PMI, Chemical analysis, Tensile, Hardness, Dimensional inspection, MTC EN 10204/3.1 |
Chemical Composition (typical ranges)
| Element | Hastelloy C-276 (wt %) | Hastelloy C-22 (wt %) |
|---|---|---|
| Nickel (Ni) | Balance | Balance |
| Chromium (Cr) | 14.5 – 16.5 | 20.0 – 22.5 |
| Molybdenum (Mo) | 15.0 – 17.0 | 12.5 – 14.5 |
| Tungsten (W) | 3.0 – 4.5 | 2.5 – 3.5 |
| Iron (Fe) | 4.0 – 7.0 | 2.0 – 6.0 |
| Carbon (C) | ≤ 0.01 | ≤ 0.015 |
Mechanical Properties (typical)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | ~690 – 790 MPa | Grade and heat treatment dependent |
| Yield Strength (0.2% offset) | ~275 – 355 MPa | Annealed / solution treated |
| Elongation | ≥30 – 50% | Good ductility for fabrication |
| Hardness | ~HRB 80 – 95 | Typical annealed condition |
Equivalent Grades & Designations
| Common Name | ASTM / ASME | UNS |
|---|---|---|
| Hastelloy C-276 | B622 / B575 refs | N10276 |
| Hastelloy C-22 | B575 / B622 refs | N06022 |
| Hastelloy B-2 | B574 / B575 refs | N10665 |
Dimension Chart — Flat Bar (Common sizes)
Standard widths/thicknesses supplied in mm; custom sizes available on request.
| Width (mm) | Thickness (mm) | Lengths (mm) | Tolerance |
|---|---|---|---|
| 10 – 200 | 3 – 50 | 1000 – 6000 | Custom / to spec |
Typical Applications
- Heat exchanger components, condenser strips and baffles
- Pump shafts, valve parts and bearing supports
- Chemical processing hardware and reactor internals
- Marine & offshore structural parts and fittings
- Pharmaceutical processing and high-purity systems
- Power generation auxiliary components and high-temperature supports
Our Hastelloy Flat Bars are produced to accepted international standards and customer specifications (referencing ASTM/ASME/UNS designations) and are available in commonly used grades such as Hastelloy C-276 (UNS N10276), C-22 (UNS N06022) and B-series alloys. Bars are supplied in hot-rolled, cold-rolled and precision-finished conditions with options for solution annealing, pickling and passivation. Each lot is traceable and can be supplied with Mill Test Certificates (MTC), PMI/chemical analysis and third-party inspection on request to ensure compliance with project requirements.
Hastelloy Flat Bars supplied by Rose Metal Industries are premium nickel-based alloy flat bars engineered for the most demanding corrosive and high-temperature applications. Manufactured, stocked and exported with strict quality controls, these flat bars combine exceptional corrosion resistance with excellent mechanical strength, making them a preferred choice for chemical processing, marine, offshore, power generation and pharmaceutical industries. Rose Metal Industries maintains ready stock and export capability to serve clients across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry) and the Andaman & Nicobar Islands, as well as global markets..
Frequently Asked Questions (FAQ)
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | Hastelloy C-276 (UNS N10276), C-22 (UNS N06022), B-2 (UNS N10665), B-3 |
| Standards | ASTM B575 / B622 / B443 references, ASME/UNS, Customer specifications |
| Forms | Hot-rolled flat bars, cold-rolled, precision ground flat bars |
| Surface Finish | Mill finish, pickled & passivated, polished (on request) |
| Testing | PMI, Chemical analysis, Tensile, Hardness, Dimensional inspection, MTC EN 10204/3.1 |
Chemical Composition (typical ranges)
| Element | Hastelloy C-276 (wt %) | Hastelloy C-22 (wt %) |
|---|---|---|
| Nickel (Ni) | Balance | Balance |
| Chromium (Cr) | 14.5 – 16.5 | 20.0 – 22.5 |
| Molybdenum (Mo) | 15.0 – 17.0 | 12.5 – 14.5 |
| Tungsten (W) | 3.0 – 4.5 | 2.5 – 3.5 |
| Iron (Fe) | 4.0 – 7.0 | 2.0 – 6.0 |
| Carbon (C) | ≤ 0.01 | ≤ 0.015 |
Mechanical Properties (typical)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | ~690 – 790 MPa | Grade and heat treatment dependent |
| Yield Strength (0.2% offset) | ~275 – 355 MPa | Annealed / solution treated |
| Elongation | ≥30 – 50% | Good ductility for fabrication |
| Hardness | ~HRB 80 – 95 | Typical annealed condition |
Equivalent Grades & Designations
| Common Name | ASTM / ASME | UNS |
|---|---|---|
| Hastelloy C-276 | B622 / B575 refs | N10276 |
| Hastelloy C-22 | B575 / B622 refs | N06022 |
| Hastelloy B-2 | B574 / B575 refs | N10665 |
Dimension Chart — Flat Bar (Common sizes)
Standard widths/thicknesses supplied in mm; custom sizes available on request.
| Width (mm) | Thickness (mm) | Lengths (mm) | Tolerance |
|---|---|---|---|
| 10 – 200 | 3 – 50 | 1000 – 6000 | Custom / to spec |
Typical Applications
- Heat exchanger components, condenser strips and baffles
- Pump shafts, valve parts and bearing supports
- Chemical processing hardware and reactor internals
- Marine & offshore structural parts and fittings
- Pharmaceutical processing and high-purity systems
- Power generation auxiliary components and high-temperature supports