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ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Power Plants

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ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Power Plants

Brand Name : YUHONG

Model Number : UNS: S31035, 1.4990, X7NiCrWCuCoNb25-23-3-3-2

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin : China

MOQ : 100KGS

Price : negotiable

Payment Terms : T/T, L/C

Supply Ability : 1500 tons per month

Delivery Time : 10days->

Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Standard : EN10216-5 , DIN 17456, DIN 17458, ASTM A213, ASME SA213, JIS G3459, G3463 , GOST 9941

Material : UNS: S31035, 1.4990, X7NiCrWCuCoNb25-23-3-3-2

Size-OD : 73MM

Size-Thickness : 20BWG, 18BWG, 16BWG, 14BWG, 12BWG, 10BWG, 8BWG

Length : 6000mm to 8000mm

NDT : ET, UT, HT,

Application : coal fired steam boilers

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ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Steam Boilers

Yuhong Group's Sanicro 25 is an austenitic 22Cr25NiWCoCu stainless steel material with excellent high-temperature properties designed for use in advanced pulverised coal steam boilers.

The new heat-resistant steel, SA-213 S31035 (22Cr25Ni3W3CuCoNbN), is currently recognized as one of the main candidate materials for power plants due to its exceptional strength.

The results of the creep tests demonstrated that S31035 steel exhibits significantly higher creep strength compared to S30432 steel, with an extrapolated creep rupture strength of approximately 118.0 MPa after 50,000 hours at 700°C. Additionally, it displayed excellent fracture toughness, with a fracture surface contraction exceeding 50%. The exceptional creep strength of S31035 steel is attributed to the combined precipitation strengthening of nanoscale Cu-rich phases, acicular Laves phases, and secondary Z phases.

Sanicro 25 Chemical composition (nominal) %

SPEC: UNS31035 Code case 2752 VdTUV 555
C Si Mn P S Cr Ni W Co Cu Nb N
≤0.1 0.2 0.5 ≤0.025 ≤0.015 22.5 25 3.6 1.5 3.0 0.5 0.23

Sanicro 25 Solution annealing

1180-1250°C (2155-2280°F) and quenched.

Sanicro 25 Physical properties

Density: 8.32 kg/dm3; 0.29 lb/in3

Sanicro 25 Thermal conductivity
Temperature, oC W/(m oC) Temperature, oF Btu/(ft h oF)
20 12 68 7
100 13 100 7
200 15 200 7.5
300 16 400 9
400 18 600 10
500 20 800 11
600 22 1000 12
700 23 1200 13
800 25 1400 14.5
900 27 1600 15.5
1000 28 1800 16.5
1100 30 2000 17.5

Sanicro 25 Specific heat capacity 1)
Temperature, oC J/(kg oC) Temperature, oF Btu/(lb oF)
20 470 68 0.11
100 485 100 0.11
200 500 200 0.12
300 520 400 0.12
400 535 600 0.12
500 555 800 0.13
600 570 1000 0.13
700 585 1200 0.14
800 605 1400 0.14
900 620 1600 0.15
1000 640 1800 0.15
1100 665 2000 0.16

Sanicro 25 Mean values

Resistivity
Temperature, oC µΩm Temperature, oF µΩin.
20 0.98 68 38.6

Thermal expansion

Temperature, oC Per oC Temperature, oF Per oF
30-100 14.5 86-200 8
30-200 1.5. 86-400 8.5
30-300 16 86-600 8.5
30-400 16 86-800 9
30-500 16.5 86-1000 9
30-600 16.5 86-1200 9.5
30-700 17 86-1400 9.5
30-800 17 86-1600 9.5
30-900 17.5 86-1800 10
30-1000 18 86-2000 10
30-1100 18.5

ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Power Plants


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ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Power Plants Images

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