03H17N14M3- 1.4404 - aisi 316L pipe
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 03Х17Н14М3 | EI844 | 1.4435 | ~316L | X2CrNiMo18-4-3 | Delivery from the stock, in stock |
Characteristic
High alloy 03H17N14MZ relates to austenitic grades. It is used in the production of basic units of equipment in the chemical synthesis of caprolactam and urea.
Physical quality at t ° 20 ° C
— Modulus 19.5x10−4 N / mm2, and at t ° 19 300 ° C x 10−4 N / mm2.
— Density of 7.75 g / cm3.
— Thermal conductivity = 0,294 · 10² W (m · K).
— Coefficient of linear thermal expansion α · at t ° 20−200 ° C = 16,1x10−6 / ° C; at t ° 20−300 ° C = 14,4x10−6 / ° C.
— Resistivity = 0.73 Omxmm2 / m.
The percentage of
| Fe | Cr | C | Mn | P | Ni | Mo | Si | S |
|---|---|---|---|---|---|---|---|---|
| Bas. | 16,8−18,3 | ≤0,03 | 1−2,0 | ≤0,035 | 13,5−15,0 | 2.2−2.8 | ≤0,4 | ≤0,020 |
The mechanical characteristics of the alloy at a temperature of 20 ° C.
| Specifications and Standard | Type of product | σ0,2, N / mm² | Rm N / mm² | δ5,% |
|---|---|---|---|---|
| 14−1-1154−74 | Hot-rolled sheet | 200 | 500 | 40 |
| 14−1-1541−75 | Hot-rolled sheet | 200 | 500 | 40 |
| 14−1-2144−77 | Hot-rolled sheet | 200 | 500 | - |
| 14−1-692−73 | Cold-rolled sheet | 200 | 500 | 40 |
| GOST 5582−75 | Cold-rolled sheet | 200 | 500 | 40 |
| 14−3-396−75 | seamless pipe | 200 | 500 | thirty |
| 14−1-240−72 | bar | 200 | 500 | 40 |
The mechanical characteristics at high and low temperature (sheet 6 mm thick, quenching in water from 1100 ° C)
| σ0,2, N / mm² | Rm N / mm² | tisp, ° C |
δ5,% | σ0,2, N / mm² | Rm N / mm² | tisp, ° C | δ5,% |
|---|---|---|---|---|---|---|---|
| 260 | 620 | 20 | 60 | ||||
| 320 | 700 | -50 | 65 | 100 | 400 | 600 | 50 |
| 380 | 800 | -100 | 70 | 280 | 510 | 400 | thirty |
| 600 | 1100 | -196 | 60 | 200 | 490 | 200 | 45 |
The mechanical characteristics at high temperature (sheet 20 mm thick, quenching in water from 1100 ° C)
| σ0,2, N / mm² | Rm N / mm² | tisp, ° C |
δ5,% | n, of | KCU, J / cm2 | ψ,% |
|---|---|---|---|---|---|---|
| 10 | 20 | 1200 | 95 | 13−15 | 100 | 80 |
| 20 | 50 | 1100 | 78 | 10 | 150 | 62 |
| 50 | 80 | 1000 | 78 | 7−8 | 200 | 70 |
| 100 | 130 | 900 | 57 | 6 | 210 | 58 |
| 200 | 280 | 800 | 23 | 5 | 200 | thirty |
Corrosion resistance
In accordance with the following specifications: 14−1-1154−74, 01/14/69 273 14−1-1541−75, 14−1-240−72, 14−1-2144−77 alloy 03H17N14MZ when tested in boiling 65% nitric acid (density 1.41 g / cm3) made from distilled water and completely pure acid OFS-1 1−3 11 according to GOST 125−73 must be resistant to intercrystalline corrosion. According to the above listed. conditions, in addition to the TU 14−1-2144−77, test duration is 3 cycles of 48 hours each — on quenched samples.
The duration of the test in accordance with TU 14−1-2144−77 of 5 cycles each for 48 hours. The corrosion rate of the alloy should be not more than 0.5 mm / year. This steel 03H17N14MZ according to GOST 5582−75 method of control by GOST 6032−89 should be resistant to intergranular corrosion. According to those. conditions 14−1-1847−76 control of resistance to intergranular corrosion is normalized AMU GOST 6032−89 and is carried out on the samples after quenching. .
application
In the manufacture of urea 03H17N14MZ alloy used for the lining of the synthesis column and mixers, and in the manufacture of caprolactam — cyclohexane oxidation reactors. This alloy is used in the production of welded structures, which are operated in sulphate media, as well as in boiling 10% acetic and phosphoric acids.
Treatment
Plastic hot deformation is carried out in the temperature range of 1150−900 ° C. This steel has high plasticity. Water quenching at 1080 ± 20 ° C is used to relieve work hardening and after cold-hot plastic deformation.
Welding
Good weldability of all types of automatic and manual welding. When an electric hand-welding are used electrodes RLA-20 with steel wire 03H17N14M2 (or EP551). In the process of automatic welding in inert gas or submerged arc wire used the same brand. Strength and corrosion resistance of welded joints while not lower than the base metal. Welds steel urea synthesis in a medium not susceptible to intergranular, corrosion, and the blade have 0,041−0,11 corrosion rate mm / year.
Applicable Standard steel 03H17N14M3
5582−75; «Rolled corrosion-resistant sheet, heat-resistant and heat-resistant. TU. «
25 054−81 «Forgings of corrosion-resistant alloys and steels. General tech. Conditions».
5632−72 «alloys corrosion-resistant and high-alloy steel, heat-resistant refractory. brand. «
5949−75 «Steel calibrated and profiled corrosion-resistant, heat resistant and heat resistant. Those. conditions». ;
5632−72 «alloys corrosion-resistant and high-alloy steel, heat-resistant refractory. Stamps «.
TU 14−11−245−88. «Shaped steel profiles of high precision».
Buy at the best price
In stock company «Elektrovek-steel» offers a wide range of stainless steel. Our offices are located in Russia and Ukraine. Making a purchase is possible, without leaving the office, through the Company’s website. 03H17N14M3 brand popularity is due to a variety of product mix and low cost. All products have the highest quality. Technological equipment for each production stage gives us an opportunity to carry out individual orders in the event that the basic performance of the product does not satisfy you. We make quality custom orders of non-standard options, the timing of their implementation are minimal. When wholesale purchases discounts.
