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Strip, sheet HN77TJU

Sheet, strip (foil)

Equivalent

Grade analogue W. Nr. Aisi Uns En Order
XN77TYu EI437A 2.4952 N07080 NiCr20TiAl Buy from stock, view availability

HN77TJU strip, sheet supplier

«Auremo» supplier offers to buy HN77TJU strip, sheet by wholesale. There is a wide range of half-finished goods in stock. They are compliant with GOST and International Standards. Strip, sheet, foil made of HN77TJU (EI437A) are always in stock. You can buy them for the best price from HN77TJU strip, sheet supplier. Buy HN77TJU strip, sheet right now! HN77TJU strip, sheet price is privileged for wholesale customers.

Relevance

This heat-resisting nickel alloy is intended for manufacturing turbine blades, disks, circles and other details that are exploited at a temperature not higher than 750 °C. The main requirements to a material are conditioned by the latest developments of engine constructions, continuous increasing of plasticity, resistance to low-cycle and thermal fatigue, heat resistance, resistance to effect of gas environment. Material must possess a high resistance to breakage at thermal and low-cycle fatigues in modern engines for turbine blades. A risk of breakage can be increased by surface reactions. They appear because of grain boundary softening and gas corrosion.

Percentage composition according to GOST 5632−72

Pb Si C Fe Mn Ni Cr Al Ti S B Mn P
≤0,001 ≤0.6 ≤0,07 ≤1 ≤ 0.4 70.083 — 77.4 19 — 22 0.6 — 1 2.4 — 2.8 ≤0,007 ≤0,003 ≤ 0.4 ≤0.15

Mechanical properties at a temperature 20°C

GOST 23705−79 Heat treatment sV MPa sT MPa d5% y % KCU kJ/m2
Strip Thermohardening and age-hardening 610   5 12  

Mechanical characteristics

Short resistance to rupture [MPa] sv
Flow limit (proportional limit load) for permanent change of form [MPa] sT
Percent elongation at fracture [ % ] d5
Contraction ratio [ % ] y
Impact hardness [ kJ/m2] KCU
Brinell hardness 255 — 321 MPa HB

Welding

Type Description
limitedly weldable welding is possible after welding details heating to 100−120°С with further heat treating
hardly weldable in order to obtain a qualitative welded joints, it is necessary to perform the following operations: while welding to heat it up to 200−300°C, heat treating (annealing) after welding
weldable
without stint		 welding is done without further heat treating or previous heating

Buy at a bargain price

«Auremo» is a supplier of heat-resisting mill-products to countries of Eastern and Central Europe. An experience of our company allows you easily buy HN77TJU strip, sheet. A quality is compliant with GOST (all-Union State Standards) and International Standards. A wide selection of products is presented in stock. HN77TJU strip, sheet, foil are always in stock. HN77TJU strip, sheet price depends on order quantity and additional conditions of supply. HN77TJU strip, sheet price is privileged for wholesale customers. We are working with experienced managers who can quickly help to make purchases by wholesale. We have the best price-quality ratio. We invite you to a partnership. Buy heat-resisting mill-products in a moment. There is an affordable price from HN77TJU strip, sheet supplier.