15X25T- 1.4762 - aisi 446 pipe

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
15X25T	EI439	1.4762	446	X10CrAl24	Delivery from the stock, in stock

Composition

Ferritic class steel 15X25T (EI439) is a complexly alloyed stainless steel alloy. The composition according to GOST 5632- - - - - - 72 chromium 24-27%, up to 1% silicon, 0.8% manganese, 0.5-0.9% titanium, 0.15 carbon, thousands of percent phosphorus and sulfur. The steel is melted in open electric furnaces. Such technological heat-resistant material is actively used in a wide range of industries for welded structures not subject to shock loads at t °≤1100 °С.

Percentage composition of 15X25T (EI439) GOST 5632-72

Alloy	Si	C	Mn	Ni	Cr	P	S	Ti	Fe
15X25T	≤1	≤0,15	≤0,8	---	24-27	≤0,035	≤0,025	≤0,9	basis

Properties

This steel is resistant to seawater and alkaline solutions of _Na2 S and NaHS. In aggressive environment of boiling 40% nitric acid corrosion rate is 0.1 mm/year. In phosphoric acid solution of any concentration - up to 0.01 mm/year.

Range	GOST	_σB	_σT	_d5	Heat treatment
Bar	5949-75	440	295	20	Without machining
Cold tube	9941-81	461	17	-- "--	-- "--
Tubes f/a	9940-81	441	17	-- "--	-- "--
Thin sheet	7350-77	530	17	-- "--	740 - ^780o C annealing,
Thick plate	5582-75	440	14	200	Annealing 740 - ^780o C,

_σB - short-term tensile strength;

_σT - yield strength for permanent deformation.

_d5 - elongation at break

High-tech steel is easily hot deformable in the range of t° 1000 - 700 °C and cold deformable at t° 150 - 200 °C. It is welded by manual arc welding with preheating and final heat treatment.

Application

Pipes made of this alloy have excellent corrosion resistance, heat resistance and ductility. They are reliable in oxidizing environments, in the production of caustic soda. They are resistant to static loads, used for welded constructions, not subject to the action of vibration or shock, operated at t ° C from -20 ° C to 1100 ° C. These are pipes for heat exchangers operating in corrosive environments, thermocouple sheaths, furnace fittings, spark plug electrodes, Such pipes are used in the oil, chemical industry, for mine water intake, in the production of medicines, in the food industry, construction.

Supply

All products of grade 15X25T (EI439) are certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities, the mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale production. We also offer optimum conditions for retail buyers. High level of service and prompt service is the face of our company.

Buy at the best price

Evek GmbH has a wide range of stainless alloys in stock. We supply certified products of domestic and foreign manufacturers. Our staff is always happy to assist you with qualified assistance in the selection of metal products. We have some of the most experienced consulting managers. Strict adherence to production standards, excellent product quality and minimal lead time are the face of our company. Discount discounts have been introduced for regular customers.