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Incoloy 800H Ni-Fe-Cr Alloy Welding Wire

Specifications: UNS N08810  Werkstoff Nr. 1.4958 / 1.4876
Applications: Incoloy 800H wire is widely used in applications include hydrogen reformer manifolds and pigtail piping, ethylene dichloride furnace tubing, transfer piping, and high-temperature pressure vessels.

Incoloy 800H Ni-Fe-Cr Alloy Welding Wire

Incoloy 800H Ni-Fe-Cr Alloy Welding Wire Introduction

Incoloy 800H is similar to alloy 800 but with improved creep and stress-rupture properties for applications above 650 °C (1200 °F). Resistant to high-temperature oxidation, carburization, and nitridation, it is widely used in petrochemical and thermal processing.

Incoloy 800HT is similar to alloy 800H but with even more precisely controlled composition.

Alloys 800H and 800HT are the standard materials for intermediate temperatures (620–925 °C, or 1150–1700 °F). These alloys combine corrosion resistance with strength and metallurgical stability. Major applications include hydrogen reformer manifolds and pigtail piping, ethylene dichloride furnace tubing, transfer piping, and high-temperature pressure vessels.

Incoloy 800H /HT Ni-Fe-Cr Alloy Welding Wire Specification

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

Incoloy 800H /HT Ni-Fe-Cr Alloy Welding Wire Typical Chemical Composition

Grade 800H 800HT
C 0.05 – 0.10 0.06 – 0.10
Mn 1.50 max 1.50 max
Si 1.00 max 1.00 max
S 0.015 max 0.015 max
Cu 0.75 max 0.75 max
Fe 39.50 min 39.50 min
Ni 30.00 – 35.00 30.00 – 35.00
Cr 19.00 – 23.00 19.00 – 23.00
Al 0.15 – 0.60 0.15 – 0.60ᴬ
Ti 0.15 – 0.60 0.15 – 0.60ᴬ

Incoloy 800H /HT Ni-Fe-Cr Alloy Welding Wire Typical Physical&Mechanical Properties

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

Please note that the above specifications are “general specifications” that pertain to the majority of our production. These specifications should only be used for general, informational purposes. All dimensions and specifications are nominal and are subject to normal manufacturing tolerances. All specifications are subject to change without prior notice. All pictures shown are for illustration purposes only. Actual product may vary.

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