1.4833 - AISI 309S pipe
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 08Х23Н13 | 1.4833 | 309S | X12CrNi23-13 | Delivery from the stock, in stock |
Characteristic
Steel grade AISI 309S relates to heat-resistant heat-resistant steel. Intensive scaling begins at 1050 ° C. The high content of nickel and chromium provides excellent oxidation resistance and high strength at high temperature. This type of steel is very malleable and has good weldability — that characterizes its wider application. AISI 309S can be used as resistance heating elements. The recommended use temperature should not exceed 1000 ° C. Above 800 ° C AISI 309S due to the formation of scale is prone to embrittlement.
application
Widely used in all high-temperature environments, which require a significant corrosion resistance, heat resistance, creep resistance. Steel is used for parts operating at high temperature in a lightly loaded state (boxes for carburizing furnace conveyors, furnace valves with operating temperatures up to 950 ° C), oil and gas, chemical, mining and metallurgical industries.
The percentage of.
| Mark. Analogs | Ni | N | Mo | V | Ti | Cu | C | Si | Mn | P | S | Cr | W | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 309S | 12.0 — 15.0 | <0.08 | <1.5 | <2.0 | <0.045 | <0.030 | 22.0 — 24.0 | The basis | ||||||
| 1.4833 | 12.0 — 14.0 | <0.11 | <0.15 | <1.0 | <2.0 | <0.045 | <0.015 | 22.0 — 24.0 | The basis | |||||
| 20x23n13 | 12.0 — 15.0 | <0.3 | <0.2 | <0.2 | <1,00 | <0.20 | <1.0 | <2.0 | <0.035 | <0.025 | 22.0 — 25.0 | <0.2 | The basis |
Features AISI 309S at high temperatures
Tensile strength at elevated temperature
| Tensile strength (tensile), Rp m N / mm2 | 390 | 329 | 280 | 230 | 190 | 140 |
|---|---|---|---|---|---|---|
| Temperature, ° C | 600 | 650 | 700 | 750 | 800 | 850 |
Mechanical characteristics steel AISI 309S at room temperature.
| properties | Minimum | Typical |
|---|---|---|
| The elastic limit Rp 0,2, (0.2%), N / mm2 (fluidity) | 205 | 280 |
| Tensile strength Rp m, N / mm2 (tensile) | 515 | 580 |
| A80 the elongation to break in% | 40 | 60 |
| Fatigue strength, N / mm2 | - | 260 |
| Brinell Hardness — HB | - | 156 |
The elastic limit before break (strength)
| Temperature, ° C | Time | 800 | 700 | 650 | 600 | 500 |
|---|---|---|---|---|---|---|
| Stress MPa | 1000 h | thirty | 70 | 140 | 180 | 270 |
| Stress MPa | 10,000 h | 10 | 50 | 90 | 130 | 240 |
| Stress MPa | 100 000 h | 5 | 15 | 50 | 90 | 200 |
The minimum value of the elastic limit at high temperatures (deformation during the interval c1% at a given temperature)
| Temperature, ° C | Time | 800 | 700 | 650 | 600 | 550 |
|---|---|---|---|---|---|---|
| Rp1,0 1.0% plastic deformation (flow), N / mm2 | 10,000 hours | 10 | 40 | 70 | 100 | 180 |
| Rp1,0 1.0% plastic deformation (flow), N / mm2 | 100,000 hours | 5 | 25 | 50 | 80 | 120 |
Heat treatment
Stress Relief (vacation) at t ° 1050 — 1150 ° C and rapid cooling water ensures complete dissolution of carbon. Annealing at 1010 — 1120 ° C, quenching in water or cool air for maximum workability of steel. The best corrosion resistance is achieved by annealing 1070 ° C and rapid cooling. The temperature at the start of the forging process: 1150 — 1200 ° C, at the end of the process — 950 ° C. Hot working is accompanied by annealing. The time to achieve uniformity of warming up of stainless steel for longer than about 12 carbon time.
Cold working
This steel is both strong and ductile. Cold treatments include stretching forming, bending, rotary and deep drawing. When cold working is applied are the same tools and techniques, as for a carbon steel. However, applied mechanical forces increase by 1.5−2 times. This is due to hardening of austenitic steel with the molding.
Forming stretch
processing technology provides that the workpiece is subjected to during the 'braking' hoods. The walls of the workpiece thinner, so the molding in order to avoid gaps used heat treatable steel.
Rotary and deep drawing
When this deep drawing press on the workpiece does not stretch that does not happen often in practice, the material passes freely between the rollers. For example, when drawing household utensils forming always a stretch. In this alloy for deep drawing, must be different minimum degree of hardening, that is, to be as stable and the rate of Md30 (N) must be «in the red». For the production of stainless steel kitchen appliances typically used so-called Sub-analysis of stainless steel, as in the production of cooking pots by deep drawing. Rotary drawing on metal-spinning machine is forming a turning. are standard objects of use, for example, a bucket or similar symmetrical cone products that usually do not polish.
Welding
Steel is easy to weld. Generally, the heat treatment after welding is not required. But, at the risk of intergranular corrosion is performed additional annealing at t ° 1050−1150 ° C. The welding seam must be cleaned chemically and mechanically descaled and then passivated by means of etching paste.
Supply
All submitted articles grade AISI 309S certified. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.
Buy at the best price
The site of LLC «Electrovek-steel» reflects the most current information on the acquisition of stainless alloys available today. Experienced managers who are always in touch, ready to provide highly qualified advice on any current issues. We sell semi-finished non-ferrous and rare at a competitive price. Products manufactured at the most modern equipment and meets the requirements of Russian State Standard of quality and international quality standards. Regular customers receive a discount system of discounts.
