20H20N14S2 - 1.4828 - aisi 309 pipe

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
20Х20Н14С2	EI211	1.4828	309	X15CrNiSi20-12	Delivery from the stock, in stock

Composition

20KH20N14S2 — grade heat-resistant high alloy chromium-Nickel steel. In its composition, 19−22% Cr, 12−15% Ni. As additives to the mixture used 2−3% silicon, up to 1.5% manganese, 0.3 percent copper, 0.2% of titanium and carbon, thousandths of a percent of phosphorus and sulfur.

Percentage composition of the brand 20KH20N14S2 (GOST 5632−72)

C	Cu	Si	Mn	Ni	Cr	P	S	Ti	Fe
≤0,2	≤0.3 mm	2−3	≤1,5	12−15	19−22	≤0,035	≤0,025	≤0,2	basis

Manufacturer

20KH20N14S2 pipe can be manufactured of hot-rolled, cold-rolled and warm way. Seamless pipe is made using extrusion, drawing, forging or rolling. The temperature of forging is 1170 °C at the beginning of the process and 850 °C at the end. Pipe sections up to 350 mm is cooled in air. Pipes are produced mainly with a round cross-section, but there is a possibility of rolling tubes with rectangular, oval and square cross-section.

Classification

Extremely thin-walled pipe has a wall thickness of from 0.3 to 6 mm and Ø 5−250 mm. From the thin — wall thickness from 0.6 mm to 20 mm for the same diameter. Thick-walled pipe has a wall thickness of 1,6−24 mm, Ø — 6−250 mm. Pipe is made particularly thick-walled with a wall 2 — 12 mm and Ø 6 — 70 mm.

Technological qualities depending on the temperature

t°	Density	ax10 ⁶	The thermal conductivity	Resistance
C °C	g/cm³	1/Deg	W/(mgrad)	Ohm·m
20	7,8	946
100	7,76	16	15	1000
400	19	1130
600	7,55	18.1	23	1194
800	Of 7.47	18.5	26	1242

a — the coefficient of thermal expansion

Use

Pipe 20KH20N14S2 used in the construction of heat treatment furnaces designed for operation up to 1000 °C, it is ideal for the production of furnace fittings, furnace conveyors, the manufacture of boxes for cementation. This pipe belongs to the 3rd class of pipes, which are used in various systems under high pressure, for example, in the nuclear and chemical industries, various furnaces and boilers.

Supply

All products are brand 20KH20N14S2 certified. In the technical documentation included data on chemical composition, limiting the percentage of impurities; mechanical qualities of the products. We can buy in bulk any semi-finished products for large-scale production. We also offer optimal conditions for retail customers. A high level of service and speed of service are the face of our company.

Buy at best price

In stock, LLC «Electrocentury-steel» has a range of stainless alloys. Supply certified products of domestic and foreign manufacturers. Our staff members are always happy to provide expert assistance in the choice of metal. We employ some of the most experienced managers. Strict adherence to standards of production, excellent product quality and minimum turnaround times are the face of our company. For regular customers entered the discount discount.