08KH18N12B - 1.4550 sheet, round, wire

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
08Х18Н12Б	ЭИ402	1.4550	347	X6CrNiNb18-10	Delivery from the stock, in stock

Production and use

Heat-resistant, heat-resistant corrosion-resistant grade 08KH18N12B is a Nickel-chromium alloy austenitic. Production is regulated by the following GOST: 5632−72; 5949−75; 5582−75; 7350−77; 9940−81; 9941−81. Of a steel made welded equipment for work in nitric acid. This steel knife is more resistant to corrosion compared to alloy 12X18H9T and 12Х18НЮТ, doped with titanium.

The chemical composition of the alloy

C	Cr	Si	Mn	Nb	Ni	P	S	Fe
≤0,08	17−19	≤0,8	≤2	10·C-1,1	11−13	≤0,035	≤0,02	Basis

Mechanical properties (normalized) at 20 °C

GOST	Products	σв, N/mm2	σ0,2, N/mm2	δ5, %
5949−75	Bars	500	180	40
7350−77	thick	510	205	40
5582−75	-thin	530	-	40
9940−81	-hot	510	-	38
994−81	cold-formed	529	-	27

Mechanical properties at room and at elevated temperatures (cultivar, the process of quenching in water from 1100 °C)

tисп, °C	σ0,2, N/mm2	σв, N/mm2	δ5, %	ψ, %	tисп, °C	σ0,2, N/mm2	σв, N/mm2	δ5, %	ψ, %
-70	310	980	53	-	540	190	410	45	65
20	640	46	63	650	180	350	44	67	290

Mechanical properties at high t º (grade Ø18 mm, quenching in water from 1100 °C)

tисп, °C	σ0,2, N/mm2	σв, N/mm2	δ5, %	ψ, %	KCU, j/cm2	tисп, °C	σ0,2, N/mm2	σв, N/mm2	δ5, %	ψ, %	KCU, j/cm2
700	170	290	52	74	-	1000	-	54	42	67	179
800	-	150	16,4	-	256	1200	-	20	54	85	105
870	-	180	25	39	-	1300	-	10	60	88	29

Physical properties at 20°C

Density 7.9 g/cm3; specific resistivity of 0.8 Ω • mm2/m specific heat 0,504 · 103 j/(kg · K);

Corrosion resistance

Steel 08KH18N12B stand against oxidation in air up to 900 °C, and also against knife of corrosion in welded joints to intergranular corrosion. Testing is carried out by methods AM and AMU GOST 6032−89 (immersion in the control solution at 24 and 8 hours, respectively). Such tests are carried out after provoking heated to 650 °C (1 hour).

Technological parameters

The ingots are rolled at t° 1200−900°C. To bars with a high content of Nb should be lower t° the beginning of deformation up to 1150 °C. Hot deformation is carried out at 1160−900°C. Steel has a good manufacturability during cold deformation in the hardened state.

Welding

For RDS use electrodes TSL-11 with wire SV-07Х19Н10Б; electrodes OzL-7 with wire SV-01 (02)Х19Н9. These electrodes give a high durability of welded joints to intergranular and General corrosion. For welding equipment operating at temperatures up to 750 °C, for example, in the petrochemical industry, are used as the electrodes L-39 with wire SV-04Х19Н9 and SV-06Х19Н9Т. If you need durability in aggressive environments at t° to 600 °C using electrodes of L-40M with wire SV-02 (04)Х19Н9.

Supply

In stock, LLC «Electrocentury-steel» a wide selection of rental brand 08KH18N12B any parameters. 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

Digging LLC «Electrocentury-steel» features unlimited range of stainless steel alloys of the highest quality. We offer alloys for special purpose at best price from warehouses in Ukraine and Russia. If you are interested in our offer, contact your nearest office. Qualified specialists will provide all necessary information regarding the products, price range, conditions of implementation. The cost of the product depends on the parameters of products and additional conditions of delivery.