10KH14G14N4T - эи711 sheet, round, wire
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 10Х14Г14Н4Т | EI711 | Delivery from the stock, in stock |
Production and use
Steel 10KH14G14N4T (ЭИ711) is bromomalonate-Nickel austenitic alloy. Is melted in open electric furnaces. Production is regulated by the following GOST: 25 054−81; 5632−72; 5582−75; 5949−75; 7350−77; 4405−75, as well as TU14−1-170−72. It is used in the manufacture of welded cryogenic technology and equipment for chemical production, weak aggressiveness, parts, furnace fittings and heat exchangers with operating temperature up to 700 °C (screens, sheet metal parts furnace rollers, muffles). This alloy is economically doped analogue X18H10 steel.
Chemical composition
| C | Cr | Fe | Mn | Ni | P | S | Si | Ti |
|---|---|---|---|---|---|---|---|---|
| ≤0,1 | 13−15 | DOS. | 13−15 | 2,8−4,5 | ≤0,035 | ≤0,02 | ≤0,8 | 5·(P-0,02)-0,6 |
Mechanical properties (normalized) at 20 °C
| GOST | Products | σв, N/mm2 | σ0,2, N/mm2 | δ5, % | ψ, % |
|---|---|---|---|---|---|
| 5949−75 | Bars and stripes | 640 | 245 | 35 | 50 |
| 7350−77 | Thick sheets | 590 | 245 | 40 | - |
| 5582−75 | Thin sheets | 690 | 295 | 35 | - |
| THAT 14−3-59−72 | Hot rolled and cold rolled pipe | 600 | - | 35 | - |
Mechanical properties at low and high t º (sheet of 12 mm, tempered in water from 1050 °C)
| t° | σIn | σ0,2 | ψ | δ5 | KCU, |
|---|---|---|---|---|---|
| C °C | N/mm2 | N/mm2 | % | % | J/cm2 |
| -253 | 1400 | 450 | - | 31 | 260 |
| -196 | 1300 | 450 | 5 | 40 | 320 |
| -70 | 940 | 300 | 68 | 52 | 320 |
| 20 | 730 | 270 | 67 | 62 | 320 |
| 400 | 460 | 130 | 67 | 53 | - |
| 500 | 390 | 110 | 63 | 38 | - |
| 600 | 270 | 90 | 62 | 39 | - |
| 700 | 220 | 80 | 63 | 48 | - |
σin the Limit of short-term strength, [MPa]
δ5, the elongation at break, [ % ]
ψ is the Relative narrowing [ % ]
Mechanical properties at high t º (rod, hardened in water from 1050 °C)
| t° | σIn | σ0,2 | ψ | δ5 | KCU, |
|---|---|---|---|---|---|
| C °C | N/mm2 | N/mm2 | % | % | J/cm2 |
| 700 | 250 | 108 | 60 | 38 | 380 |
| 800 | 160 | 98 | 62 | 44 | 330 |
| 900 | 100 | 88 | 67 | 66 | 330 |
| 1000 | 50 | - | 85 | 64 | 270 |
| 1100 | 20 | - | 74 | 49 | 190 |
| 1150 | 15 | - | 69 | 43 | 180 |
| 1200 | 15 | - | 60 | 68 | 50 |
σin the Limit of short-term strength, [MPa]
δ5, the elongation at break, [ % ]
ψ is the Relative narrowing [ % ]
Mechanical properties at 20 °C depending on the degree of cold deformation
Sheet 2 mm, quenching in water from 1050 °C
| The degree of compression, % | σ0,2, N/mm2 | σв, N/mm2 | δ5, % | The degree of compression, % | σ0,2, N/mm2 | σв, N/mm2 | δ5, % |
|---|---|---|---|---|---|---|---|
| 0 | 270 | 730 | 52 | 40 | 1170 | 1200 | 10 |
| 20 | 900 | 1050 | 15 | 60 | - | 1500 | 2 |
The oxidation rate in the atmosphere of calm air
| tисп, °C | νок, mm/year | tисп, °C | νок, mm/year |
|---|---|---|---|
| 700 | 0,1 | 800 | 0,35 |
The long-term strength and creep (the process of quenching in water from 1050°C)
| tисп, °C | σ1000, N/mm2 | σ1·10−3 N/mm2 | σ1·10−4, N/mm2 | tисп, °C | σ1000, N/mm2 | σ1·10−3 N/mm2 | σ1·10−4, N/mm2 |
|---|---|---|---|---|---|---|---|
| 600 | 177 | 157 | 98 | 800 | 39 | 20 | - |
| 700 | 88 | 49 | 29 | 900 | 17 | - | - |
Physical properties at 20°C
Density 7.8 g/cm3; the magnetic saturation in a field of 500 e = 1,04 · 104 (T · m)2 /A.
The values of modulus of elasticity (E), thermal coefficient of linear expansion (α) and thermal conductivity (λ) dependent on t º
| tисп | E · 10−4 N/mm2 | λ, W/(m · K) | Range of temperature | α · 106, K-1 |
|---|---|---|---|---|
| -253 °C | 22,5 | 3,36 | -253−20 °C | 8,8 |
| -196 °C | 22 | 8,4 | -196−20 °C | 10 |
| -100 °C | 21 | 12,6 | -100−20 °C | 13 |
| -50 °C | - | - | -50−20 °C | 14,3 |
| 20 °C | 21,3 | 18,9 | - | - |
| 100 °C | 20,7 | 18 | 20−100 °C | 16 |
| 200 °C | 19,7 | 19,3 | 20−200 °C | 16,3 |
| 300 °C | 18,8 | 16,8 | 20−300 °C | 17 |
| 400 °C | 17,4 | 21,4 | 20−400 °C | 18 |
| 500 °C | 16,5 | 22,6 | 20−500 °C | 18,7 |
| 600 °C | 15,6 | 23,9 | 20−600 °C | 19,3 |
| 700 °C | 14,7 | 25,6 | 20−700 °C | 19,4 |
| 800 °C | 14 | 42,8 | 20−800 °C | 19,6 |
Corrosion resistance
According to GOST 5949−75, 7350−77, 5582−84 control steel for resistance to intergranular corrosion is carried out by methods AM and AMU GOST 6032−89 (duration of exposure in the test solution for 15 and 8 hours respectively). Test start after provoking heated to 650 °C, 1 hour with air cooling. This steel has 1 point of durability in 5−10% HNO3 at 80 °C and 60−65% HNO3 at 20 °C; 10% acetic acid and 10% H3P04 to 80 °C in tap water at 85 °C, detergents, etc. This steel is used for oxygen pipelines, high-pressure, as well as in the manufacture of welded shells and large pieces of equipment for the liquefaction of gases.
Technological processing
This steel deformed in hot and in cold condition. Stamping, forging and rolling is carried out at 1150−850°C. Satisfactorily welded by all welding processes. For manual arc welding the electrodes used on the basis of wire Х18Н9.
Supply
Entire rental brand 10KH14G14N4T 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.
