
Alloy 800H SMLS pipe has extreme heat and corrosive environments. The alloy's combination of nickel, iron, and chromium gives it exceptional resistance to oxidation, carburization, and sulfidation under harsh industrial conditions. This makes alloy 800H SMLS pipe well-suited for use in chemical, petrochemical, and power generation plants.
Alloy 800H Seamless pipe is produced without any welds or seams, which helps to enhance their strength and resistance to corrosion and other types of damage. This material is highly resistant to oxidizing and reducing environments, and it can withstand temperatures up to 1000 °C without suffering significant damage or degradation. This makes it an ideal choice for use in high-temperature applications such as furnace parts, heat exchangers, and other critical components that must withstand extreme conditions.
Incoloy 800/ 800H/ 800HT Seamless Pipes Specifications
Specifications |
ASTM B407 ASME SB407 / ASTM B514 ASME SB514 |
Dimensions |
ASTM, ASME and API |
Size |
15″NB TO 150″NB IN |
Specialized in |
Large Diameter Size |
Schedule |
SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
Type |
Seamless / ERW / Welded / Fabricated / LSAW Pipes |
Form |
Round, Hydraulic Etc |
Length |
Single Random, Double Random & Cut Length. |
End |
Plain End, Beveled End, Treaded |
800/ 800H/ 800HT Incoloy Alloy Pipes Chemical Composition
Grade |
C |
Mn |
Si |
Fe |
S |
Cr |
Al-Ti |
Ni |
800 |
min. |
– |
– |
– |
39.5 |
– |
19.0 |
0.15 |
30.0 |
max. |
0.1 |
1.5 |
1.0 |
– |
0.015 |
23.0 |
0.60 |
35.0 |
800H |
min. |
0.05 |
– |
– |
39.5 |
– |
19.0 |
0.15 |
30.0 |
max. |
0.1 |
1.5 |
1.0 |
– |
0.015 |
23.0 |
0.60 |
35.0 |
800HT |
min. |
0.06 |
– |
– |
39.5 |
– |
19.0 |
0.85/0.25 |
30.0 |
max. |
0.1 |
1.5 |
1.0 |
– |
0.015 |
23.0 |
1.20/0.60 |
35.0 |
Incoloy Alloy 800/ 800H/ 800HT Pipe Mechanical Properties
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
Rockwell B (HR B) max |
Brinell (HB) max |
800-H-HT |
Psi – 75,000 , MPa – 520 |
Psi – 30,000 , MPa –205 |
30 |
– |
– |
Equivalent Grades for 800 / 800H / 800HT Incoloy Pipe
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
OR |
Incoloy 800 |
1.4876 |
N08800 |
NCF 800 |
NA 15 |
ЭИ670 |
Z8NC32-21 |
X10NiCrAlTi32-20 |
XH32T |
Incoloy 800H |
1.4958 / 1.4876 |
N08810 |
NCF 800H |
NA 15(H) |
ЭИ670 |
Z8NC33-21 |
X5NiCrAlTi31-20 |
XH32T |
Incoloy 800HT |
1.4859 / 1.4876 |
N08811 |
NCF 800HT |
NA 15(HT) |
ЭИ670 |
– |
X8NiCrAlTi32-21 |
XH32T |