12X17 pipe, wire, circle

Sheet, tape

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
12X17 X17 410 Delivery from the stock, in stock

Grade 12Х17 (or EZh 17).

Refers to the type of stainless steel for the production of kitchen utensils, household items, equipment of light and food industries. It is used for the production of fasteners, bushings, rollers, vessels operated in dilute solutions of acetic, nitric and citric acids, in solutions of salts with oxidizing characteristics, in the production of pipes and heat exchangers.

Note

- in a gas environment up to t° +850 ° C

- in air, the temperature of intensive scale formation rises above +900°C

- Generally used in annealed condition

- this alloy is not recommended for welded constructions.

The production of semi-finished products of 12X17 grade is regulated by the following GOST

5632-72 "Marks. Alloys heat-resistant and heat-resistant, corrosion-resistant and high-alloy.

1133-71 "Assortment. Square and round forged steel".

4405-75 "Assortment. Hot-rolled forged strip of tool steel".

2590-2006 "Sections. Hot-rolled round steel bars".

2591-2006 "Sections. Hot-rolled square sections".

7417-75 "product range. Calibrated Round Steel.

8559-75 "product range. Steel calibrated square.

8560-78 "product range. Calibrated hexagonal rolled product".

103-2006 "product range. Hot-rolled steel section rolled bar.

2879-2006 "Quality range. Hot-rolled hexagonal rolled section steel product".

5949-75 "Technical specifications. Calibrated and section steel corrosion-resistant, heat-resistant and heat-resistant".

14 955-77 "Т. У. Steel with special surface finish round quality".

TU 14-11-245-88. "Steel shaped sections of high precision".

Percentage composition

Mn Cr C Si S P
≤0,80 16,0-18,0 ≤0,12 ≤0,80 ≤0,035 ≤0,025

Mechanical characteristics of alloy grade 12X17 at 20 °C.

Delivery condition Section, mm tisp.,°C temperature,°C St|S0,2, MPa sB, MPa d5,% d4 d d10 y ,% KCU, kJ/m2 HB HRC HRB HV HSh
≤60 ≥245 ≥392 ≥20 ≥50 ≥294 126-197
≤60 ≥157 ≥392 ≥25 ≥55 ≥49 126-197
≥490 ≥20
≥440 ≥18
Sample ≥245 ≥390 ≥20 ≥50
Sample ≤441 ≥17
H/d pipes 3,5-32,0 ≤441 ≥17
Tubes х/д 0,2-22,0 ≤441 ≥17

Mechanical properties at elevated temperatures

Delivery condition Section, mm sB, MPa Tip,°C St|S0,2 MPa tisp.,°C y ,% d4 d d10 d5,% KCU, kJ/m2 HB HRC HRB HV HSh
≥84 700 ≥97 ≥67
≥40 800 ≥98 ≥64
≥22 900 ≥98 ≥58
≥21 1000 ≥97 ≥81
≥14 1100 ≥97 ≥73
≥8 1200 ≥99 ≥85
≥6 1300 ≥97 ≥99
≤510 ≥310 20 ≥70 ≥28
≤450 ≥290 100 ≥27
≤460 ≥265 200 ≥26
≤440 ≥255 300 ≥25
≤195 ≥145 600

Physical characteristics of alloy grade 12Х17

Temperature, °С 1000 900 800 700 600 500 400 300 200 100 20 0
Torsional shear modulus of elasticity in (G, GPa) 61 69 85 78 82 85 89 93
Modulus of normal elasticity in (E, GPa) 148 165 182 192 201 211 219 227 232 232
Density in (r, kg/m3) 7720 7720
Electrical resistivity in (R, Nm - m) 1160 1150 1110 1030 950 850 770 680 610 560 560
Thermal conductivity coefficient in (l, W/(m - °C)) 26 26 25 24 24
Specific heat capacity in (C, J/(kg - °C)) 462 462
Linear expansion coefficient in (a, 10-61/°C) 12,1 11,9 11,9 11,6 11,4 11,2 10,8 10,5 10,4

Technological parameters of 12Х17 alloy

Processing features - To improve the hardness and mechanical characteristics set by ST CKBA 010, to achieve maximum corrosion resistance, the billets are annealed. In order to reduce the residual magnetic induction in the magnetic coil of electromagnets blanks are subjected to long-term annealing. Long-term annealing of billets gives the necessary magnetic properties of steel 12X17. At a magnetic residual induction BCh 0.3 Tl coercive force Hs is 0.23 ka/m; at Hm 20 ka/and the maximum saturation induction Bs is equal to 1.6 Tl. Welded units of 12X17 grade are annealed according to the following regime for the corrosion resistance improvement: heating to 780-800°С, 2-3 h, air cooling. If there are no requirements for resistance to intergranular corrosion; heating to 775-820°С, air cooling, if resistance to intergranular corrosion is necessary, holding for 8 hours.

Tendency to temper embrittlement - Steel has a tendency to temper embrittlement at +475 °C and long dwell times.

Weldability - Difficult to weld. Types of welding: ArDS, RDS. Recommended subsequent heat treatment.

Forging temperature - 1250 °C at the beginning, 900 °C at the end. For cross-sections up to 350 mm - cooling in air.

Other information on alloy 12X17

Temperature of critical points:

Temperature °C Critical point
810 AR1
860 AC1

Hardness:

Heat Treatment Mode. Delivery condition. HRB HRCe core HRCe surface HV HB HSD
Forged and hot-rolled steel. Tempering or annealing. GOST 5949-75. 126-197

Impact viscosity:

Temperature in delivery condition -30 +20 -70
Long product in delivery condition ≥60 ≥340 ≥30

Supplied

All the presented 12Cr17 grade products are certified. Technical documentation includes data on chemical composition, limiting percentage of impurities; mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale productions. We also offer optimum conditions for retail buyers. The high level of service and responsiveness of service is the face of our company.

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