» Products » EN 10222-5 X2CrNiMoN22-5-3 | EN 1092-1 1.4462 Flanges

EN 10222-5 X2CrNiMoN22-5-3 | EN 1092-1 1.4462 Flanges

A weld neck flange made of EN 10222-5 X2CrNiMoN22-5-3 with steel number 1.4462; manufactured in accordance with EN 1092-1 PN40 Type 11; supplied to Kempten, Germany.

  • Description

EN 1092-1 flanges can be made from duplex (austenitic-ferritic) stainless steel forgings EN 10222-5 X2CrNiMoN22-5-3 with steel number 1.4462. The X2CrNiMoN22-5-3/ 1.4462 steel is the European equivalent to ASTM A182 Gr. F51 (S31803). It is also called “duplex alloy 2205”. If the chromium, molybdenum and nitrogen content is kept within the upper half of the range for 1.4462, it is the exact equivalent to ASTM A182 Gr. F60 (S32205). When tested in accordance with EN ISO 3651-2, flanges made of X2CrNiMoN22-5-3/ 1.4462 forgings exhibit excellent resistance to intergranular corrosion. The flange may be furnished in any type according to EN 1092-1 including Type 01, 02, 04, 05, 11, 12, 13, 21, 32, 33, 34, 35, 36, and 37 with PN designation from PN 2.5 through PN 400. EN 0192-1 is more conservative in the upper temperature limit for 1.4462 than the ASME Boiler and Pressure Vessel Code. Generally, the maximum design temperature of X2CrNiMoN22-5-3 flange is 250°C [480°F]. Higher than this temperature at service may result in embrittlement.

Chemical Composition Requirements

Element% by Mass
C≤0.030
Si≤1.00
Mn≤2.00
P≤0.035
S≤0.015
Cr21.0-23.0
Mo2.5-3.5
Ni4.5-6.5
N0.10-0.22
*All values shall be based on cast analysis. For product analysis, the permissible deviations specified in Table 3 of EN 10222-5 shall apply.

Mechanical Properties at Room Temperature & Elevated Temperatures

ItemsRequirements
Rp0.2 MPa≥450
Rm MPa680-880
A (l, %)≥30
A (tr, %)≥25
KV2 @20°C (l, J)≥200
KV2 @20°C (tr, J)≥100
*The EN 10222-5 X2CrNiMoN22-5-3/ 1.4462 flanges shall be solution annealed at the temperature between 1020°C to 1100°C, followed by a water quench.
*The thickness of the ruling section of the flange shall be no greater than 350 mm.
*Rp0.2: 0.2% proof strength at room temperature; Rm: tensile strength at room temperature.
*A (l, %): longitudinal elongation after fracture, in %; *A (tr, %): transverse elongation after fracture, in %.
*KV2 @20°C (l, J): longitudinal impact energy absorbed at 20°C, in J unit; *KV2 @20°C (tr, J): transverse impact energy absorbed at 20°C, in J unit.

Temp. °CRp0.2, MPa
100≥360
150≥335
200≥315
250≥300
*Minimum 0.2% proof strengths of EN 10225-2 X2CrNiMoN22-5-3/ 1.4462 flanges at elevated temperatures.

Temp. °CRm
100590
150570
200550
250540
*Minimum tensile strengths of EN 10225-2 X2CrNiMoN22-5-3/ 1.4462 flanges at elevated temperatures.

p/T Ratings

EN 1092-1 has listed EN 10222-5 X2CrNiMoN22-5-3/ 1.4462 in group 16E0. The p/T ratings indicate the maximum allowable pressure (PS, in bar unit) at the maximum allowable temperature (TS, in °C unit) are presented in tables below. RT (reference temperature) is defined as the temperature range from -10°C to and including 50°C.

PN 2.5TSRT100150250
PS2.52.52.52.5
PN 6TSRT100150250
PS6.06.06.06.0
PN 10TSRT100150250
PS10101010
PN 16TSRT100150250
PS16161616
*For PN 2.5, PN 6, PN 10, PN 16.

PN 25TSRT100150200250
PS2525252525
PN 40TSRT100150200250
PS4040404040
PN 63TSRT100150200250
PS6363636363
PN 100TSRT100150200250
PS100100100100100
*For PN 25, PN 40, PN 63, PN 100.

PN 160TSRT100150200250
PS160160160160160
PN 250TSRT100150200250
PS250250250250250
PN 320TSRT100150200250
PS320320320320320
PN 400TSRT100150200250
PS400400400400400
*For PN 160, PN 250, PN 320, PN 400.

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