08KH18N10T Tube

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
08Х18Н10Т	EI914	~1.4541	~321	X6CrNiTi18-10	Delivery from the stock, in stock

Production and use

Brand 08KH18N10T (ЭИ914) is made according to the following GOST: 5632−72; 18 907−73, 4405−75, 5582−75, 5949−75; 25 054−81; 9940−81.This steel is a chromium-Nickel austenitic alloy. Is smelted in electric-arc furnaces. Has high resistance to intergranular corrosion in industrial environments, in comparison with the alloys and the 12KH18N10T 12X18H12T. It is used in the manufacture of welded structures operating in highly-corrosive environments at t° from -196 to +600°C without pressure limitation.

Percentage composition of 08X18H10T (GOST 5632−72)

C	Cr	Fe	Mn	Ni	P	S	Si	Ti
≤0,08	17−19	DOS.	≤2	9−11	≤0,035	≤0,02	≤0,8	5·S-0,7

Corrosion resistance

According to GOST 5582−72, 7350−77 and 4986−79 such steel when tested by the methods AM and AMU GOST 6032−89 resists intergranular corrosion in the test solutions during exposure, respectively, 8 and 24 hours. These tests are conducted after annealing (1 hour) at t° 650 °C.

Technological parameters

Steel 08KH18N10T on the technological parameters of a similar brand 12X18H9T (10T). From them it has a better resistance weld to intergranular corrosion and knife in the chemical industry.

Mechanical properties of rolled in to 20o With

Assortment	GOST	σIn	σT	δ5	Heat treatment
Assortment	GOST	σIn	σT	δ5	Heat treatment
Sheet 1 — 4 mm	5582−75	530	205	40	Hardening 1050 — 1080o C, Cooling water,
The plates	7350−77	510	205	43	Hardening 1030 — 1080o C, Cooling air,
Forgings	25 054−81	490	196	35−38
Rod Ø 60	5949−75	490	196	40	Hardening 1020 — 1100o C, Cooling air,
Rod full hard	18 907−73	880−930
Pipe	10 498−82	529	40
Pipe	11 068−81	530	216	37
Pipe cold deformitatii	9941−81	549	37
Tubes hot deformation	9940−81	510	40

σIn the limit of short-term strength;

σT is the yield stress for permanent deformation;

∆ 5 — elongation at break.

Welding

In automatic welding under the flux using the same filler materials as for the alloy 12X18H9T (10T).

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