Incoloy 800/800H/800HT Bars/Rods

Houston, USA-based George Metals is a reputable supplier and producer of Incoloy 800, 800H, and 800HT Bars and Rods—high-strength nickel-iron-chromium alloys designed for enhanced strength and resistance to oxidation in high-temperature environments. Produced in accordance with ASTM B408 and ASME SB-408 specifications, these bars and rods are perfect for applications where there is extended exposure to high temperatures and corrosive conditions. George Metals offers precision-engineered bars in finished sizes and conditions, with prompt delivery and complete traceability. Markets served are chemical processing, power generation, heat treatment, and petrochemicals demanding strong, heat-resistant alloy solutions.

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Incoloy 800 Round Bars

Incoloy 800H Rectangular Bars

Incoloy 800H Square Rods

Incoloy 800/800H/800HT Bars and Rods consist of ~30–35% nickel, 19–23% chromium, and the rest iron, with additions of aluminum and titanium for enhanced performance. 800H and 800HT variants contain more carbon (0.05–0.10%) and controlled aluminum + titanium content (0.85–1.20%) to increase high-temperature strength as well as creep resistance. These alloys offer tensile strengths of 520 MPa to 600 MPa, yield strengths of 205–275 MPa, and good ductility (elongation ~30–45%). They possess good oxidation, carburization, and sulfidation resistances at temperatures up to 1100°C, with excellent structural stability during long-term thermal exposure.

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Incoloy 800/800H/800HT Bars and Rods Specification

Incoloy 800/800H/800HT Bars Specifications

Specification : ASTM B166, A479 / ASME SB166, SA479

Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI

Incoloy Round Bars: Outside Diameter in the range of 4mm to 500mm

Incoloy Bright Bars : Outside Diameter in the range of 4mm to 200mm

Incoloy Hex Bars : 4mm – 101.6mm

Incoloy Square Bars : 3mm – 100mm

Incoloy Flat Bars : 1/2″ to 10″ in thickness range of 1.6mm to 150mm, Custom Size Stainless Steel Flats available

Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Length : 1 to 6 Meters, Custom Cut Lengths

Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.

Chemical Compositions of Incoloy 800/800H/800HT Rods

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	39.50 min	30.00 – 35.00	19.00 – 23.00	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	39.50 min	30.00 – 35.00	19.00 – 23.00	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	39.50 min	30.00 – 35.00	19.00 – 23.00	0.15 – 0.60	0.15 – 0.60

Incoloy 800/800H/800HT Bars Mechanical Properties

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Alloy 800 / 800H / 800HT	7.94 g/cm3	1385 °C (2525 °F)	Psi – 75,000 , MPa – 520	Psi – 30,000 , MPa – 205	30 %

Incoloy 800/800H/800HT Bars and Rods Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	GOST	AFNOR	JIS	BS	EN	OR
Incoloy 800	1.4876	N08800	ЭИ670	Z8NC32-21	NCF 800	NA 15	X10NiCrAlTi32-20	XH32T
Incoloy 800H	1.4958 / 1.4876	N08810	ЭИ670	Z8NC33-21	NCF 800H	NA 15(H)	X5NiCrAlTi31-20	XH32T
Incoloy 800HT	1.4859 / 1.4876	N08811	ЭИ670	–	NCF 800HT	NA 15(HT)	X8NiCrAlTi32-21	XH32T

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Weight Chart of Incoloy 800/800H/800HT Bars and Rods

Incoloy 800 Round bar
Size	Kgs / Foot	Kgs / Mtr	Size	Kgs / Foot	Kgs / Mtr	Size	Kgs / Foot	Kgs / Mtr
3mm	0.017	0.055	20mm	0.753	2.470	3″	10.900	35.762
1/8″	0.019	0.062	22mm	0.908	2.979	3-1/4″	12.800	41.996
5/32″	0.029	0.095	7/8″	0.926	3.038	3-1/2″	14.850	48.772
4mm	0.030	0.098	24mm	1.080	3.543	3-3/4″	17.001	55.780
3/16″	0.043	0.141	25mm	1.180	3.871	4″	19.306	63.340
5mm	0.047	0.154	1″	1.210	3.970	4-1/4″	21.908	72.249
7/32″	0.058	0.190	26mm	1.271	4.170	4-1/2″	24.4487	80.340
6mm	0.068	0.223	27mm	1.368	4.490	4-3/4″	27.366	90.249
1/4″	0.076	0.249	1-1/8″	1.534	5.033	5″	30.461	99.940
7mm	0.091	0.298	30mm	1.691	5.548	5-1/2″	36.690	121.000
5/16″	0.118	0.387	1-1/4″	1.924	6.349	6″	43.860	143.900
8mm	0.120	0.398	32mm	1.894	6.314	6-1/2″	51.093	167.630
9mm	0.152	0.498	1-3/8″	2.303	7.550	7″	59.432	196.000
3/8″	0.170	0.557	35mm	2.390	7.553	7-1/2″	68.226	225.000
10mm	0.189	0.620	36mm	2.438	7.999	8″	77.586	254.55
11mm	0.228	0.748	38mm	2.792	8.903	10″	121.048	397.140
7/16″	0.232	0.761	1-1/2″	2.715	8.951
12mm	0.271	0.889	40mm	3.009	9.872
1/2″	0.303	0.994	1-5/8″	3.200	10.449
13mm	0.318	1.043	1-3/4″	3.712	12.179
14mm	0.368	1.207	45mm	3.807	12.555
9/16″	0.383	1.256	1-7/8″	4.260	13.977
15mm	0.424	1.391	48mm	4.330	14.205
5/8″	0.473	1.551	50mm	4.698	15.414
16mm	0.481	1.578	2″	4.848	15.906
17mm	0.543	1.791	2-1/8″	5.475	17.963
11/16″	0.573	1.880	2-1/4″	6.135	20.128
18mm	0.610	2.001	60mm	6.768	22.205
3/4″	0.682	2.237	2-3/8″	6.838	22.435
			2-1/2″	7.576	24.856
			2-5/8″	8.354	27.409
			2-3/4″	9.169	30.083

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Incoloy 800/800H/800HT Bars and Rods Types

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Incoloy 800/800H/800HT Bars and Rods Uses

Incoloy 800, 800H, and 800HT Bars and Rods find extensive applications in industries where stability and strength are needed for operation in high-temperature and corrosive conditions. They are utilized in heat exchangers, steam superheaters, process heaters, and hydrocarbon cracking equipment in chemical and petrochemical plants. They are used by power generation plants for boiler components as well as reheater tubing. These alloys are also well-suited for nuclear steam generators, furnace retorts, and fixtures for heat treating because of their high thermal fatigue and oxidation resistance. Incoloy 800 series bars provide enduring service in systems subject to hostile gases and high service temperatures.

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