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Hastelloy C22 Bar Hot Rolled & Forged Bars EN 2.4602 Alloy Bar Diameter 10 - 350mm Pass UT Test
More Specification Informations
Products Name
Hastelloy C22 round bar
Diameter
10 - 350mm
Length
custom cutting any length as request
Surface
bright, Black,pickling,polishing
Brand
DELTA
Service
cutting, Polishing
MOQ
2 Kgs
Other Type
bar, strip,coil,pipe.sheet, plate,wire.etc
Packing
Wooden box
Loading Port
Shanghai Port
Price term
EXW,FOB,CIF,CFR
Deliver time
within 12 days
Hastelloy C22 Bar Hot Rolled & Forged Bars EN 2.4602 Alloy Bar Diameter 10 - 350mm Pass UT Test
Hastelloy C22 (EN 2.4602) is a premium nickel-chromium-molybdenum-tungsten alloy renowned for its exceptional corrosion resistance, high-temperature stability, and mechanical strength—making its hot-rolled and forged round bars (with a diameter range of 10-350mm and UT test qualification) ideal for demanding industrial applications. Below is a comprehensive overview of this alloy bar, covering its chemical composition, mechanical properties, key characteristics, equivalent grades, and typical applications.
1. Chemical Composition
Hastelloy C22’s corrosion resistance and mechanical performance stem from its precisely balanced chemical composition, which adheres to international standards (e.g., ASTM B574, EN 10088-1). The typical composition (by weight percentage) is as follows:
Element
Content Range (%)
Key Function
Nickel (Ni)
56.0 min
Base metal; provides excellent ductility, toughness, and resistance to stress corrosion cracking
Chromium (Cr)
20.0 - 22.5
Enhances oxidation resistance (even at high temperatures) and resistance to pitting/crevice corrosion
Molybdenum (Mo)
12.5 - 14.5
Boosts resistance to reducing environments (e.g., acids) and prevents localized corrosion
Tungsten (W)
2.5 - 3.5
Complements molybdenum to improve corrosion resistance in harsh media (e.g., sulfuric acid) and enhances high-temperature strength
Iron (Fe)
2.0 - 6.0
Improves workability during hot rolling/forging and reduces alloy cost without compromising performance
Cobalt (Co)
2.5 max
Controlled to minimize potential embrittlement in high-temperature services
Carbon (C)
0.015 max
Low carbon content prevents carbide precipitation (a common cause of intergranular corrosion) during welding or heat treatment
Silicon (Si)
0.08 max
Reduces oxide formation and improves castability/forgability
Manganese (Mn)
0.5 max
Aids in deoxidation during manufacturing and enhances ductility
Phosphorus (P)
0.02 max
Minimized to avoid brittleness and corrosion susceptibility
Sulfur (S)
0.01 max
Strictly controlled to prevent hot cracking during welding and forging
2. Mechanical Properties
The hot-rolled and forged Hastelloy C22 bars (diameter 10-350mm) exhibit excellent mechanical strength and ductility, even at elevated temperatures. Below are the typical mechanical properties (tested at room temperature, per ASTM B574):
Property
Specification (Typical Value)
Test Standard
Tensile Strength (σb)
≥ 690 MPa (100 ksi)
ASTM E8/E8M
Yield Strength (σ0.2)
≥ 310 MPa (45 ksi)
ASTM E8/E8M
Elongation at Break (δ)
≥ 40%
ASTM E8/E8M
Hardness (Brinell, HBW)
≤ 210
ASTM E10
Impact Toughness (Charpy V-notch)
≥ 100 J (74 ft-lb) at -196°C (-321°F)
ASTM A370/ASTM E23
Note: Mechanical properties can be adjusted via post-forging heat treatment (e.g., solution annealing at 1120-1170°C followed by rapid quenching) to optimize strength or ductility for specific applications.
3. Key Characteristics
Hastelloy C22 hot-rolled and forged bars stand out for their unique combination of properties, making them superior to many other nickel alloys:
Exceptional Corrosion Resistance: It resists a wide range of aggressive media, including sulfuric acid, hydrochloric acid, acetic acid, seawater, and chloride-containing solutions. Unlike lower-grade alloys, it avoids pitting, crevice corrosion, and intergranular corrosion—even in harsh environments like chemical processing plants or offshore oil platforms.
High-Temperature Stability: The alloy maintains its mechanical strength and oxidation resistance at temperatures up to 1093°C (2000°F). It is resistant to “hot corrosion” (attack by molten salts or sulfur-rich gases), making it suitable for high-temperature applications like furnace components or gas turbine parts.
Excellent Fabricability: The hot-rolled and forged bars offer good ductility, enabling easy machining, welding (compatible with TIG/MIG welding processes), and forming (e.g., bending, flanging). Low carbon content eliminates the need for post-weld heat treatment to restore corrosion resistance.
UT Test Qualification: All bars (10-350mm diameter) pass Ultrasonic Testing (UT) per standards like ASTM A609 or EN 10228-3. This ensures the absence of internal defects (e.g., cracks, inclusions) that could compromise structural integrity in critical applications.
Toughness at Cryogenic Temperatures: Unlike many alloys that become brittle at low temperatures, Hastelloy C22 retains high impact toughness even at -196°C (-321°F), making it suitable for cryogenic equipment (e.g., liquid natural gas storage).
4. Equivalent Grades
Hastelloy C22 is recognized under various international standards and has equivalent grades across regions, ensuring consistency in performance and interchangeability:
Standard Organization
Grade Designation
Common Name
ASTM (USA)
UNS N06022
Hastelloy C22
EN (Europe)
2.4602
Nickel Alloy 2.4602
DIN (Germany)
NiCr22Mo9W
—
JIS (Japan)
NW 20602
—
ISO
NiCr22Mo9W
—
These grades share identical chemical and mechanical properties, so Hastelloy C22 bars (EN 2.4602) can be used as direct replacements for UNS N06022 or DIN NiCr22Mo9W in global projects.
5. Applications
Thanks to its versatile performance, hot-rolled and forged Hastelloy C22 bars (10-350mm diameter) are widely used in industries requiring corrosion resistance, high-temperature strength, or structural reliability. Typical applications include:
Chemical Processing: Reactors, pressure vessels, heat exchangers, and piping for handling acids (sulfuric, hydrochloric), solvents, and corrosive intermediates.
Oil & Gas Industry: Downhole components (tubing, casings), offshore platform structures, and wellhead equipment—resistant to seawater and sour gas (H₂S).
Pharmaceutical & Food Processing: Equipment (mixing tanks, conveyor parts) that requires corrosion resistance to clean-in-place (CIP) solutions and compliance with hygiene standards (e.g., FDA).
High-Temperature Equipment: Furnace heating elements, gas turbine combustion chambers, and aerospace components—withstands elevated temperatures and oxidation.
Environmental Engineering: Wastewater treatment systems, flue gas desulfurization (FGD) units, and air pollution control equipment—resistant to acidic effluents.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
