03Х23Н6 - 1.4362 - S32304 uns pipe, wire, circle
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 03Х23Н6 | ZI68 | 1.4362 | S32304 | X2CrNiN23-4 | Delivery from the stock, in stock |
Relevance
Brand 03Х23Н6 refers to hromonikelevoj steels austenitic-ferritic class. Production normalized following GOST: 5632−72, 7350−77 and TU: 14−1-1554−75, 14−1-1905−76. Such steel is used for welded vessels that are required in the manufacture of nitric acid of 10% concentration at t° 140 °C; 20% HNO3 t° up to 120 °C; 30% HNO3 t° up to 120 °C and 40−70% HNO3 to 100 °C. Also it is used in the production of ammonium nitrate, adipic acid, nitrogen mineral fertilizers, pipelines for the transport of nitrous gas from the compressor to the refrigerators of the 1st and 2nd steps (Wednesday — nitrous gas, nitric acid, t º <230 °C, pressure to 1.16 N/mm2). This steel can be successfully replaced alloy ОЗХ18Н11, 03Х19АГЗН10, Х18Н9Т and X18H10T, demonstrating greater resistance to stab corrosion of welds in comparison with alloys, doped titanium: 08KH22N6T, 18CR10NITI, Х18Н9Т.
Percentage composition
| C | Cr | Si | Mn | Ni | P | S | Fe |
|---|---|---|---|---|---|---|---|
| ≤0,03 | 22−24 | ≤0,4 | 1−2 | 5,3−6,3 | ≤0,035 | ≤0,02 | Basis |
Mechanical properties at t=20°C
| >THE | Products | σin N/mm2 | σ0,2, N/mm2 | δ5, % |
|---|---|---|---|---|
| 14−1-1554−75 | Bars | 520 | 300 | 25 |
| GOST 7350−77 | The leaves are thick | 590 | 345 | 25 |
| 14−1-1905−76 | The leaves are thin | 550 | 300 | 25 |
Mechanical properties at low and elevated t º (sheet of 6 mm tempered in water from 1050°C)
| tCOI, °C | σ0,2, N/mm2 | σin N/mm2 | δ5, % | tCOI, °C | σ0,2, N/mm2 | σin N/mm2 | δ5, % |
|---|---|---|---|---|---|---|---|
| -100 | 700 | 1080 | >39 | 200 | 300 | 570 | 38 |
| -70 | 600 | 1000 | 41 | 400 | 150 | 470 | 41 |
| 20 | 450 | 890 | 42 | 600 | 200 | 400 | 36 |
Mechanical properties at high t º (sheet of 6 mm tempered in water from 1050°C)
| tCOI, °C | σ0,2, N/mm2 | σin N/mm2 | δ5, % | ψ, % | KCU, j/cm2 | n, |
|---|---|---|---|---|---|---|
| 800 | 100 | 150 | 24 | 35 | 250 | - |
| 900 | - | 100 | 45 | - | 200 | 3,5 |
| 1000 | 30 | 50 | 52 | 35 | 150 | 5,2 |
| 1100 | - | 20 | 60 | - | 100 | 6,8 |
| 1200 | 8 | 10 | 75; 88 | 61 | 100 | 8,0; 17,6 |
Physical properties at t of 20°C
Density: 7.7 g/cm3; thermal conductivity 0,168 · 102 W/(m · K); specific electrical resistivity at 20 °C is 0.74 Ω • mm2/m modulus of elasticity at 20 °C = 20·x10−4 N/mm2; magnetic saturation in a field of 500 e reaches to 0.3−0.5 (T · m)/A; and the temperature coefficient of linear expansion of α with increasing temperature from 20 °C to 100 °C, 200 °C and 300 °C is respectively 9,6; Of 13.8 and 16x10−6/°C.
Corrosion resistance
According to GOST 7350−77, and the 14−1-1905−76, this steel resistant to intergranular corrosion according to the method of AM (test duration in the control solution 24 hours), GOST 6032−89. During the test in boiling 65% HNO3 of high purity, with a density of 1.41 g/cm3, the corrosion rate should not exceed 0.5 mm/year (the test involves 3 cycles of 48 hours each). Testing by two methods expose the samples cut from the sheet in a state of hardening with an additional provoking heated to 550 °C for 1 hour.
Technological parameters
Hot deformation of this low carbon steel is carried out at higher temperatures than other corrosion-resistant steels; namely, in the temperature interval 1280−1110°C. the Steel bends well, is stamped, both cold and hot conditions. In water quenched from 1000−1050°C; the same heat treatment is recommended to relieve the work hardening after cold or hot deformation.
Welding
Steel is good welded by all types of manual welding. For manual arc welding — better electrodes OzL-20. The strength of the welded seams is at least 90% of the basic material of equal corrosion resistance. Welded joints do not require additional heat treatment, they are not prone to knife corrosion in boiling 65% HNO3.
Supply
Entire rental brand 03Х23Н6 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.
