Question 1

What are Incoloy 800, 800H, 800HT, and 825 Round Bars?

Accepted Answer

Incoloy 800, 800H, 800HT, and 825 Round Bars are solid cylindrical bars manufactured from nickel-iron-chromium based superalloys. These materials are designed for long-term service in elevated temperature and corrosive environments, offering excellent resistance to high-temperature oxidation, carburization, and corrosion along with good mechanical strength. They are widely used in heat exchangers, furnace components, petrochemical processing equipment, power plants, and pollution control systems.

Question 2

What is the difference between Incoloy 800, 800H, 800HT, and 825?

Accepted Answer

Incoloy 800 offers good oxidation resistance up to 815°C (1500°F) with moderate strength. Incoloy 800H is the high-temperature version with enhanced creep and rupture strength. Incoloy 800HT provides further improved creep and stress rupture properties. Incoloy 825 contains molybdenum and copper additions, providing superior resistance to reducing acids, pitting, and stress corrosion cracking, making it ideal for acidic and aqueous corrosion environments.

Question 3

When should I choose Incoloy Round Bars?

Accepted Answer

Choose Incoloy Round Bars when high-temperature oxidation resistance is required, good strength at elevated temperatures is essential, resistance to carburization and chemical attack is needed, components operate in aggressive environments, and long-term thermal stability is critical. Choose bright or machined bars when high dimensional accuracy is required, smooth surface finish is essential, precision machining or threading is involved, and consistent mechanical properties are needed for valves, fasteners, and fittings.

Question 4

What are the applications of Incoloy Round Bars?

Accepted Answer

These round bars are used in Petrochemical for heat exchangers, reactors, and piping systems; in Power Generation for boilers, superheaters, and furnace parts; and in Chemical Processing for tanks, valves, and structural components requiring resistance to heat, oxidation, and chemical attack.

Question 5

What industries use Incoloy Round Bars?

Accepted Answer

Incoloy alloys are preferred in Petrochemical Industry for high-temperature chemical processing units; Power Generation for continuous high-temperature operations; and Chemical Processing for corrosive chemical environments where heat resistance, corrosion protection, and operational reliability are essential.

Question 6

What is the typical tensile strength of Incoloy Round Bars?

Accepted Answer

Incoloy 800 offers a minimum tensile strength of approximately 450 MPa (65 ksi) and yield strength of 170 MPa (25 ksi). Incoloy 800H and 800HT provide similar strength properties with enhanced creep and rupture strength at elevated temperatures. Incoloy 825 offers a minimum tensile strength of 550 MPa (80 ksi) and yield strength of 220 MPa (32 ksi) with minimum elongation of 35%, providing superior corrosion resistance in acidic environments.

Question 7

What is the difference between Incoloy and Inconel?

Accepted Answer

Incoloy is a nickel-iron-chromium alloy designed for high-temperature applications with good strength and stability. Inconel is a nickel-chromium based superalloy with exceptional high-temperature strength and oxidation resistance. Incoloy generally has lower nickel content and is more cost-effective for moderate high-temperature applications, while Inconel is preferred for extreme temperature and stress conditions.

Question 8

What manufacturing standards do you follow for Incoloy Round Bars?

Accepted Answer

Our Incoloy Round Bars are manufactured in compliance with ASTM B473 / ASME SB473 for material specifications, ASTM B564 / ASME SB564 for forged bars, and ASTM B880 for general requirements. They are available in various sizes with full material traceability, PMI testing, and ISO 9001:2015 certification.

Question 9

Why choose Ratnadeep Steel for Incoloy Round Bars?

Accepted Answer

Ratnadeep Steel & Engg. Co. is a renowned manufacturer, exporter, and supplier based in Mumbai, India. We offer factory pricing, top quality, custom sizes, and timely delivery. Our Incoloy round bars are precision-engineered with rigorous quality inspection, making us a trusted global supplier. We provide ISO 9001:2015 certified products with full material traceability.

STANDARD	WERKSTOFF NR.	UNS	GOST	AFNOR	JIS	BS	EN
Incoloy 800	1.4876	N08800	ЭИ670	Z8NC32-21	NCF 800	NA 15	X10NiCrAlTi32-20
Incoloy 800H	1.4958 / 1.4876	N08810	ЭИ670	Z8NC33-21	NCF 800H	NA 15(H)	X5NiCrAlTi31-20
Incoloy 800HT	1.4859 / 1.4876	N08811	ЭИ670	—	NCF 800HT	NA 15(HT)	X8NiCrAlTi32-21
Incoloy 825	—	N08825	ХН38ВТ	NFE30CDUDM	NCF 825	NA 16	NiCr21Mo

Standard	ASTM B166 / ASME SB166
Dimension Standard	EN, DIN, JIS, ASTM, BS, ASME, AISI
Size	14 mm – 300 mm
Length	1 to 6 meters, Custom Cut Length
Form	Round, Square, Hex (AF), Rectangle, Billet, Ingot, Forging

Grade	C	Mn	Si	S	Cu	Fe	Ni	Cr	Al	Ti
800	0.10 max	1.50 max	1.00 max	0.015 max	0.75 max	39.5 min	30–35	19–23	0.15–0.60	0.15–0.60
800H	0.05–0.10	1.50 max	1.00 max	0.015 max	0.75 max	39.5 min	30–35	19–23	0.15–0.60	0.15–0.60
800HT	0.06–0.10	1.50 max	1.00 max	0.015 max	0.75 max	39.5 min	30–35	19–23	0.15–0.60	0.15–0.60
825	0.05 max	1.00 max	0.50 max	0.03 max	1.5–3.0	22.0 min	38–46	19.5–23.5	0.20 max	0.6–1.2

Grade	Density (g/cm³)	Melting Point (°C)	Tensile Strength	Yield Strength	Elongation
800 / 800H / 800HT	7.94	1385 (2525°F)	520 MPa	205 MPa	30%
825	8.14	1400 (2550°F)	550 MPa	220 MPa	30%

Incoloy 800/800H/800HT/825 Round Bars & Rods

Incoloy 800 / 800H / 800HT / 825 Explained

Other Types of Incoloy Alloy 800 / 800H / 800HT / 825 Bars

800/800H/800HT/825 INCOLOY ROUND BAR EQUIVALENT GRADES

SPECIFICATION OF INCOLOY 800/800H/800HT/825 ROUND BAR

CHEMICAL COMPOSITION OF INCOLOY 800/800H/800HT/825 ROUND BAR

MECHANICAL PROPERTIES OF INCOLOY ROUND BAR

💡 Practical Difference in Use

Applications of Incoloy 800 / 800H / 800HT / 825 Round Bars

When to Choose Incoloy 800 / 800H / 800HT / 825 Round Bars?

Choose Incoloy Round Bars when:

Bright / Machined Incoloy Round Bars are preferred when:

Industries That Use Incoloy 800 / 800H / 800HT / 825 Round Bars

Uses

Why Incoloy?

Uses

Why Incoloy?

Uses

Why Incoloy?

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