Mark 08H17T (EI 645)
It refers to the heat-resistant corrosion-resistant steels, ferritic class. An intensive formation of scale in the air starts at temperatures above 900 ° C. Used in the manufacture of chemical equipment and parts, used in oxidizing environments. This steel is resistant to atmospheric and soil moisture, the action of the sea water where possible pitting. Used in the manufacture of heat exchangers, weldments, pipes are not exposed to mechanical shock loads and operated at temperatures below -20 ° C, for the manufacture of brewing equipment, food, soap, light industry, as a cladding layer in two-layer hot-rolled corrosion-resistant sheet. Analogues: 12X18H10T and 12X18H9T, 12H17, including for the welded structures…
Production is regulated by the following guests:
1133−71 «Range. Steel forged round and square. «
4405−75 «Range. Strips forged made of tool steel and hot-rolled. «
2590−2006 'Range. Hot-round «steel long products.
2591−2006 'Range. Steel long products hot-square. «
7417−75 «Range. Round steel calibrated. «
8559−75 «Range. Steel square calibrated. «
8560−78 «Range. Rental hexagonal calibrated. «
1133−71. «Forged steel square and round.»
5632−72 «Stamps. Heat-resistant alloys and heat-resistant, corrosion-resistant and high-alloy steel. «
103−2006 «Range. Hot-rolled steel graded band-pass «
2879−2006 'Range. Hot-rolled hex profiled steel. «
14 955−77 «T. US Steel with special surface finish round quality. «
5949−75 «T. US Steel calibrated and profiled corrosion-resistant, heat-resistant and heat-resistant. «
TU 14−11−245−88 «shaped steel profiles of high precision».
The percentage of
|≤0,80||16,0−18,0||≤0,08||≤0,025||· C-5 0.8||≤0,80||≤0,035|
The mechanical characteristics of the alloy brand 08H17Tpri temperature of 20 ° C.
|delivery condition||Cross-section, mm||tisp., ° C||totpusk, ° C||St | S0,2, MPa||sB, MPa||d5,%||d4||d||d10||y,%||KCU, kJ / m2||HB||HRC||HRB||HV||HSh|
|Pipes g / d||3,5−32,0||≤441||≥17|
|Tubes x / d||0,2−22,0||≤441||≥17|
The mechanical properties at elevated temperatures.
|delivery condition||Cross-section, mm||sB, MPa||totpusk, ° C||St | S0,2, MPa||tisp., ° C||d5,%||d4||d||d10||y,%||KCU, kJ / m2||HB||HRC||HRB||HV||HSh|
Note: -For forged and hot-rolled bar level mechanical characteristics in accordance with GOST 5949−75 is set in agreement with the purchaser and manufacturer.
The physical properties of the alloy 08H17T
|The test temperature in ° C||700||500||400||300||200||100||20||0|
|Shear Modulus in torsion (G, GPa)|
|The module of elasticity in the (E, GPa)||206||206|
|Density (r, kg / m3)||7700||7700|
|Houde. The electrical resistance in the (R, nom · m)||600||600|
|Thermal conductivity in the (l, W / (m · ° C))||25||25|
|Specific heat capacity (C, J / (kg · ° C))||462||462|
|The coefficient of linear expansion (a, 10−61 / ° C)||eleven||10.5||10.5||10.5||10||10|
Technological characteristics 08H17T alloy.
Features heat treatment — Details of ferritic grade steels quenched at t ° 760−780 ° C with an exposure rate of 30 min + 1 min 1 mm thickness of the material in the water-cooled for maximum ductility and eliminate addiction to the ICC. Welded steel product brand 08H17T when annealed at t ° 720−780 ° C over 1.2 hours with cooling with air. Spending a vacation at the rate of products. 450−550 ° C it is impossible, as this can lead to «475 -gradusnoy brittleness.»
The tendency to temper brittleness — Steel is prone to temper embrittlement in the temperature. 475 ° C during long exposures.
Weldability — Steel limited-welded. Satisfactory mechanical properties at welding can obtain products that have slight thickness to 2−3 mm. For electric-automatic submerged arc welding ANF-14 and AN-26 using the wire-marks St. 05H25N12TYU or St-08H20N9G7T.
forging temperature — Early — 1220 ° C, at the end of — 900 ° C. When section 350 mm cooling air.
Additional information about 08H17T alloy.
|longitudinal sample. Sheet 8 mm.||State of delivery temperature||Sample cross. Sheet 8 mm.|
Buy at the best price
In stock «Elektrovek-steel» company offers a wide range of metal-roll brand 08H17T. Our offices are located in Russia and Ukraine. Making a purchase is possible, without leaving the office, through the Company’s website. The popularity is due to the brand product 08H17T diverse product mix and low cost. All products have the highest quality. Technological equipment for each production stage gives us an opportunity to carry out individual orders in the event that the basic performance of the product does not satisfy you. We make quality custom orders of non-standard options, the timing of their implementation are minimal. When wholesale purchases discounts.