1.4919 - aisi 316h pipe, wire, circle
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 1.4919 | 316H | X6CrNiMoB17-12-2 | Delivery from the stock, in stock |
Characteristics
AISI 316Ti stainless steel with titanium, molybdenum and higher nickel content is an improved version of AISI 304. Titanium strengthens its resistance to aggressive environments, so the main use of this steel is in the manufacture of industrial equipment, which has to work in harsh environments. The presence of titanium in the steel, five times the percentage of carbon, stabilizes the deposition of chromium carbides on the surface of the crystals. AISI 316Ti steel is ductile and well welded. Balanced composition provides considerable corrosion resistance in a wide range of aggressive media. Molybdenum protects against crevice and pitting corrosion in sea water, chlorinated water and acetic acid vapors. Minimal gas corrosion rate provides excellent corrosion resistance in polluted industrial atmospheres. Domestic analogues of this grade are 10Х17Н13М2Т and 03Х17Н14М3.
AISI 316Ti has higher strength and creep resistance at high temperatures than AISI 304, and excellent mechanical and corrosion properties at minus temperatures. AISI 316Ti is used when it is necessary to avoid corrosion in the welded peri-seam areas. AISI 316Ti - titanium stabilized steel is used for a long time in the temperature range 550 °C - 800 °C.
Application
High workability, oxidation resistance and excellent mechanical properties allow AISI 316Ti to be used in many industries. These are chemical and pharmaceutical industry, food industry, machine building, production of heat exchangers, petrochemistry, processing industry.
Percentage composition
| Element | AISI 316Ti |
|---|---|
| Cr | 16 - 18 |
| Fe | base |
| Ni | 10 - 14 |
| Mo | 2 - 3 |
| Mn | 2 max |
| Si | 0.75 max |
| C | 0.08 max |
| P | 0.045 max |
| Ti | 5 X% (C + N) |
| N | 0,1 max |
| S | 0.030 max |
Physical and mechanical properties of steel.
| Melting Point | Density | Tensile strength | Elongation | Yield strength (0.2% displacement) |
|---|---|---|---|---|
| 1400° S (2550° F) | 8.0 g/s m³ | Psi - 75,000, MPa - 515 | 35% | Psi - 30,000, MPa - 205 |
Minimum value for elastic limit at high temperatures (deformation in 10,000 hr at a given temperature)
| Temperature,°C | 550 | 600 | 650 | 700 | 800 | Time |
|---|---|---|---|---|---|---|
| Rp1.0 1.0% plastic strain (fluidity), N/mm2 | 120 | 80 | 50 | 30 | 10 | 10 000 ч |
| Rp1.0 1.0% plastic strain (fluidity), N/mm2 | 120 | 80 | 50 | 25 | 5 | 100 000 ч |
High temperature properties of AISI 316Ti steel
Ultimate strength at elevated temperature
| Tensile strength, Rp m N/mm2 | 380 | 270 | 170 | 90 | 50 |
|---|---|---|---|---|---|
| Temperature, °C | 600 | 700 | 800 | 900 | 1000 |
Dross formation temperature:
-in intermittent exposure 850 °C;
-in continuous exposure 925 °C;
Characteristics of AISI 316Ti steel at low temperatures:
| Temperature | °C | -161 | -78 | -196 |
|---|---|---|---|---|
| Elastic limit, (0.2%), Rp0.2 (yield stress) N/mm2 | N/mm2 | 380/220 | 300/180 | 400/220 |
| Ultimate tensile strength, Rp m, N/mm2 | N/mm2 | 1450/1200 | 1100/950 | 1600/1350 |
| Impact toughness | J | 160/160 | 180/175 | 155/150 |
Corrosion resistance.
-acidic media.
Examples for some acid solutions and acids
| Concentration, to mass in % | 10 | 20 | 40 | 60 | 80 | 100 |
|---|---|---|---|---|---|---|
| Nitric acid | 0 | 0 | 0 | 0 | 1 | 2 |
| Formic acid | 0 | 1 | 2 | 2 | 1 | 0 |
| Sulfuric acid | 2 | 2 | 2 | 2 | 2 | 2 |
| Phosphoric acid | 0 | 0 | 0 | 0 | 1 | 2 |
| Concentration, to mass in % | 10 | 20 | 40 | 60 | 80 | 100 |
|---|---|---|---|---|---|---|
| Nitric acid | 0 | 0 | 0 | 0 | 2 | 0 |
| Formic acid | 0 | 0 | 0 | 0 | 0 | 0 |
| Sulfuric acid | 2 | 2 | 2 | 2 | 1 | 0 |
| Phosphoric acid | 0 | 0 | 0 | 0 | 0 | 2 |
Heat treatment of AISI 316Ti steel.
Annealing: Temperatures of 1010 to 1120°C and rapid cooling with water or cold air provide optimum ductility. Better corrosion resistance is obtained by annealing at 1070°C and rapid cooling.
2. Stress relieving (tempering) at 450-600°C for one hour with little risk of sensitization. The lowest stress relief temperature not exceeding 400°C should be used.
3. Forging range. Temperature at the beginning of the process is 1150 - 1260°C, at the end of the process is 900-925°C. For all hot workmanship - accompanied by annealing. The time required to achieve homogeneous heating of stainless steels is longer than that of carbon steels - about 12 times longer.
Buy at the best price
Evek GmbH has a wide range of stainless steel products in stock. Our representative offices are located. You can make a purchase without leaving your office, through the Company's website. The popularity of AISI 316Ti brand is explained by a variety of assortment and low cost. All the products have the highest quality. Technological completeness of each stage of production makes it possible for us to fulfill individual orders in case you are not satisfied with the basic execution of the product. We carry out high quality individual orders of non-standard parameters, the timing of their implementation is minimal. In case of bulk purchases we provide discounts.