Physical properties of Incoloy 800H/800HT - Heanjia Super-metals Co., Ltd.

Incoloy News

Physical properties of Incoloy 800H/800HT

The incoloy 800H and 800HT wire has significantly higher tensile characteristics at elevated temperatures up to 2000oF or 1095oC. The standard analysis of tensile properties is made on the wire of diameter 12.7mm. The tensile properties and hardness of 800H and 800HT allot are shown in the below table at the room temperature to higher temperature.

Temperature oF	Hardness BHN	Tensile Strength ksi	Yield Strength ksi
80	126	77.8	21.7
800	-	67.5	18.8
1000	90	62.7	13.0
1200	84	54.8	13.5

The creep and rupture strengths of incoloy 800H and 800HT are their superior features. The limited composition and solution annealing processing are made to produce the appropriate creep rupture characteristics. The incoloy 800H is accepted under the boiler and pressure tube code of the American Society of Mechanical Engineers (ASME). The norms of building the power boilers are mentioned in the first section and for constructing the pressure vessels are mentioned in the eight section. The design stress values of incoloy 800H wire for first section and eight section. The first section building is allowed for processing up to 1500oF or 816oC. The eight section building is also explained by the code case 1983 and is permitted for processing up to 1800oF or 982oC.

The design stress information for alloy 800H for eight section, basically 304 stainless steel incoloy 800H and 800HT are of austnitic solid solution forms. The titanium nitride, titanium carbide and chromium carbide basically available in the microstructure form of alloys. The nitrides are constant at all temperatures lower than the melting point and unaltered by the heat processing.

The chromium carbides are precipitated into alloys at the temperature ranges of 1000oF and 2000oF or 540oC to 1095oC.Thereby the alloy 800H and 800HT are equivalent to other austenitic alloys and these can be provided prone to the intergranular corrosion in the rigorous conditions by the exposure to the temperature limits of 1000oF to 1400oF or 540oC to 760oC. The incoloy 800H/800HT wire are made to explore their high temperature tendencies. The concentration of carbon of incoloy alloys provides the elevated temperature strength and resistance to creep and cracking. The alloys are annealed to the last stage of formation to get the carbon in the condition of high temperature features. The annealed alloy also provides improved grain size that more enhances the potential and resistance to creep and rupture at the elevated temperature conditions.

Pre Page: Incoloy 800H and 800HT-Resistance to... Next Page: Industrial applications of Incoloy...

Product (745)

Product Forms (14)

Quality Certificate (11)

Learning Gallery (30)

Incoloy News (9)

Inconel News (22)

Molybdenum News (7)

Nikrothal News (4)

Nichrome News (13)

Titanium News (2)

Nickel News (8)

Alloys House (30)

Tools (27)

Nickel alloy News (30)

Latest Buzz (30)

nickel chrome copper iron alloys news (28)

Credit Report

Products Index

Company Info

Incoloy News