Heat-resistant multi-component alloy of iron-nickel-based HN50VMTYUBK-id (EP648; HN50VMTYUB; HN50VMTYUB-VI; EP648-VI) is relevant in the production of blanks for the manufacture of loaded parts with limited lifetime (fittings, flanges), working at t ° to + 950 ° C. Details of aircraft engines are manufactured from this steel (gas turbine blades, discs).
The heat-treated Rm = 951 MPa, HB 269, Kυ b, Kυ TV, CPF = 0.3, v = 0.15 steel must be cut at low speeds. Welded manual arc method using electrodes KTI-762. To reinforce the seam requires a final heat treatment is recommended for stress relief.
|Contoured and long products||B32||Teh.usloviya 14−1-3046−80, 14−1-3046−97; 22 GOST 411−77,|
|Billets. Blanks. Slabs||B31||OST 1 90 424−92, 303−81 90 OCT 1, Tech. 14−1-1213−75 conditions, 14−1-4103−86, 1−809−823−99|
|Bands and sheets||B33||Teh.usloviya 14−1-1052−74, 14−1-1072−74|
|The connecting portions and the steel pipe||B62||Teh.usloviya 14−3-837−79, 14−8-37−2001|
|Forgings. Metal forming.||B03||teh.usloviya 14−1-1530−75|
Start of intensive scaling determined at a temperature 850−900 ° C.
Useful Life — long.
The recommended use temperature — 650 ° C.
forging temperature at the beginning of 1170 ° C, at the end of 850 ° C. cooling in air.
The shape, size, assortment became subject to the following requirements:
Standard 2590−88- hot rolled round;
14−2-205−87 OST, GOST 2591−88 — hot rolled square;
Standard 1133−71- forged square and round;
GOST 4405−75 — hot-rolled and forged stripe;
GOST 103−76 — hot-rolled stripe;
GOST 2879−88 — Hexagon hot;
GOST 7417−75 — Round calibrated;
GOST 8559−75 — square calibrated;
GOST 8560−78 — Hexagon calibrated;
14 GOST 955−77 — with specials. surface finish.
All submitted articles HN50VMTYUBK mark Eid-certified. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and speed of service are the face of our company.
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