02Х18Н11 sheet, round, wire

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
02Х18Н11					Delivery from the stock, in stock

Feature

Steel brand 02Х18Н11 refers to promycelium austenitic steels. Smelted in open electric arc, vacuum-induction furnaces using low-carbon ferroalloys. It is also possible gas-oxygen refining of liquid metal and vacuum decarburization of the melt in the ladle. Steel shall meet the requirements of standards GOST: 1133−71, 5632−72, 5582−76; TU: 14−1-1160−74, 14−1-2144−77, 14−1-1180−74, 14−1-2450−78, 14−1-3652−83, 14−1-490−72, 14−4-3071−80, 14−1-3071−80. This steel is used in aggressive oxidizing environments in the production of 65% nitric acid in the most hard temperature conditions (in the tail gas pre-heaters, condensers-oxidants).

Percentage composition

C	Cr	Si	Mn	Ni	S	P	Fe
≤0,025	17 -19	≤0,2	≤2	The 10.5 is 12.5	≤0,02	≤0,03	Basis

Mechanical properties at 20°C

Assortment	TU	σ_0,2 N/mm2	σ_in N/mm2	δ₅, %	ψ, %
Bars	14−1-1160−74	500	200	40	50
Hot-rolled sheets	14−1-490−72	500	200	45	-
500	14−1-2144−77	200	40	-	-
520	14−1-3071−80	200	45	-	-
470	14−1-3071−80^*1	176	40	-	-
520	14−1-1180−74	200	45	-	-
Cold-rolled steel strip	14−1-3386−82	600−750	-	30	-
540−720	14−1-3652−83	-	37	-	-
Seamless pipe	14−3-1401−86^*1	460	186	45	-
Of tube billet	14−1-3183−81^*1	451	157	-	-
490	14−1-2132−77^*1	196	45	-	-
Sheets cold-rolled	GOST 5582−75	500	200	40	-

Mechanical properties steel grade 03Х18Н11 at room and elevated t º (sheet size of 8 mm, quenching in water from 1100 °C)

t_COI, °C	σ_0,2, N/mm2	σ_in N/mm2	δ₅, %	ψ, %	t_COI, °C	σ_0,2, N/mm2	σ_in N/mm2	δ₅, %	ψ, %
20	280	550	55	73	300	260	390	36	70
150	240	440	40	69	400	190	370	35	67
200	260	420	40	73	450	220	370	33	67

Mechanical properties of steel at high t º (sheet size of 8 mm, quenching in water from 1100 °C, the sample is longitudinal)

t_COI, °C	σ_0,2, N/mm2	σ_in N/mm2	δ₅, %	ψ, %	t_COI, °C	σ_0,2, N/mm2	σ_in N/mm2	δ₅, %	ψ, %
500	1780	280	38	56	900	80	110	38	66
700	120	210	36	63	1000	25	70	42	78
800	100	130	37	64	-	-	-	-	-

T º influence of quenching on mechanical properties of steel (sheet supplier OJSC Mechel; the data according to GIAP, Moscow)

after t

Steel	Si	With	σ_in/σ_0,2, N/mm2	δ₅, %	σ_in/σ_0,2, N/mm2	δ₅, %	σ_in/σ_0,2, N/mm2	δ₅, %	σ_in/σ_0,2, N/mm2	δ₅, %
			1040 °C		1080 °C		1050 °C		1200 °C
Brand 02Х18Н11	0,2	0,025	553/228	60	553/220	60	540/205	63	520/200	67
Brand 03Х18Н11	0,78	0,03	590/250	56	580/250	58	555/205	60	545/210	63

Physical properties

Steel 02Х18Н11 after the holidays (1 hour at t° 650°C) must be resistant to intergranular corrosion. Test DU produced by the method GOST 6032−89. The corrosion rate should not exceed 0.4 mm/year, Steel 02Х18Н11 suitable for the manufacture of heat exchangers, and steel 03Х18Н11 in contact with HNO3 (concentration 70%) at t º boiling in HNO3 (concentration of 45−80%) at t º 80−140 °C, and also in ammonium nitrate, adipic acid and in media containing nitrous gases, at t º 80 °C and above.

The behavior of the alloy against the corrosion process

With	Si	Mask loss, g/m2	The depth of corrosion in the HAZ^*1, µm	1075 °C	1120 °C	1150 °C
0,025	0,14	83	23	0,19	0,2	0,18

^*1 Welded samples were tested in the purge column in the production of weak nitric acid (56−60% HNO₃, at t=130 °C, 10 390 hours).

Treatment

The alloy has good workability in cold and hot plastic deformation. Ingots for rolling is heated to 1240 — 1260 °C Hot deformation usually occurs at t° 1100−900°C… to remove the work hardening after cold or hot deformation, use a softening heat treatment. Hardening is carried out in water at 1040−1100ºС. This steel cut as well as alloy 18CR10NITI.

Welding

The steel is characterized by easy weldability. In RDS apply the electrodes OzL-22 with wire SV-01Х18Н10. In automatic welding in shielding gases (submerged arc) wire is used SV-01Х19Н9 and SV-01Х18Н10. Welded joints are resistant to knife corrosion in oxidizing environments. They can be subjected to annealing to relieve stresses without fear of intergranular corrosion. According to the conclusion of niikhimmash, welded equipment, steel 02Х18Н11 has a set of mechanical and corrosion properties similar to steel ОЗХ18Н11.

Supply

Supply a certified rental brand 02Х18Н11. 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.

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The company «Electrocentury-steel» provides its customers with an unlimited choice stainless steel of the highest quality at a competitive price. If you are not sure, it offers experienced managers who are always on call and ready to provide advice. Making an order from us, You will get certified products that comply with Russian and international quality standards in the shortest possible time. If You value your time, get in touch today with our branch offices in Russia or Ukraine, or make an order on the Internet.