Introduction of Stainless Steel GX2CrNiMo19-11-2 (EN 1.4409)
GX5CrNiMo19-11-2 is a popular austenitic stainless steel for casting purposes; it is an austenitic corrosion-resistant casting steel. GX5CrNiMo19-11-2 is defined in standards EN 10213, EN 10283, and ISO 11972, with the EN designation being 1.4408. DIN 17445 also have the stainless steel grade EN 1.4408 with name of G-X6CrNiMo18-10. In fact, GX2CrNiMo19-11-2 (EN 1.4409) is the same stainless steel material as SS316 and X5CrNiMo17-12-2 (EN 1.4401) in EN 10088-3.
Manufacture Process for Stainless Steel GX2CrNiMo19-11-2 (EN 1.4409)
- Sand Casting
- Investment Casting, precision lost wax casting
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PDF VIEWContent for Stainless Steel GX2CrNiMo19-11-2 (EN 1.4409)
Standard of Stainless Steel GX2CrNiMo19-11-2 (EN 1.4409)
EN 10213:2007+A1:2016 Steel castings for pressure purposes
EN 10283: 2019 Corrosion resistant steel castings
ISO 11972:2023 specifies cast steels for general corrosion-resistant applications.
DIN 17445:1984 Stainless steel castings
GX2CrNiMo19-11-2 (EN 1.4409) Equivalent Material Grades
- American: ASTM A351 CF3M (J92800)
- American: ASTM A743 CF3M (J92800)
- American: ASTM A744 CF3M (J92800)
- American: ASTM A297 CF3M (J92800)
- Japanese: JIS 5121 SCS16
- Chinese: GB/T 12230 CF3M;
GB/T 2100 ZG03Cr19Ni11Mo2 - France: AFNOR Z7CND17-12-02
- UK: BS3100 316C12LT196
- Korea: KS D4103 SCS16
- EN 10088-3: G-X2CrNiMo18-10 (EN 1.4404)
- SS316L
GX2CrNiMo19-11-2 (EN 1.4409) Material Physical Property
Density at 20°C, kgs/dm3: 7.90
Mean thermal expansion, 10-9k-1 (20°C to 100°C): 15.8
Thermal conductivity, W/(m.k) at 50°C: 14.5
Specific heat, j/(kg.k) at 20°C: 530
Magnetic properties: none to slight magnetic
GX2CrNiMo19-11-2 (EN 1.4409) Chemical Composition Requirements
| Standard | EN 10213 | EN 10283 | ISO 11972 | EN 10088-3 | DIN 17445 |
| Grade | GX2CrNiMo19-11-2 | GX2CrNiMo19-11-2 | GX2CrNiMo19-11-2 | X5CrNiMo17-12-2 | G-X2CrNiMo18-10 |
| EN number | 1.4409 | 1.4409 | 1.4409 | 1.4404 | 1.4404 |
| Chemical requirements | |||||
| C max | 0.03 | 0.03 | 0.07 | 0.03 | 0.03 |
| Si max | 1.50 | 1.50 | 1.50 | 1.00 | 1.50 |
| Mn max | 2.0 | 2.0 | 2.00 | 2.00 | 1.50 |
| P max | 0.035 | 0.035 | 0.035 | 0.045 | 0.045 |
| S max | 0.025 | 0.025 | 0.025 | 0.030 | 0.030 |
| Cr | 18.0-20.0 | 18.0-20.0 | 18.0-20.0 | 16.5-18.5 | 17.0-20.0 |
| Mo | 2.0-2.5 | 2.0-2.5 | 2.0-2.5 | 2.0-2.5 | 2.0-3.0 |
| Ni | 9.0-12.0 | 9.0-12.0 | 9.0-12.0 | 10.0-13.0 | 10.0-13.0 |
| Cu max | 0.50 | – | – | – | – |
| N max | 0.20 | 0.20 | 0.2 | 0.11 | – |
GX2CrNiMo19-11-2 (EN 1.4409) Mechanical Property
| Standard | EN 10213 | EN 10283 | ISO 11972 | EN 10088-3 | DIN 17445 |
| Grade | GX2CrNiMo19-11-2 | GX2CrNiMo19-11-2 | GX2CrNiMo19-11-2 | X5CrNiMo17-12-2 | G-X2CrNiMo18-10 |
| EN number | 1.4409 | 1.4409 | 1.4409 | 1.4404 | 1.4404 |
| Mechanical Property | |||||
| Thickness, mm | 150 | 150 | 150 | 160 | – |
| Tensile Mpa, min | 440-640 | 440 | 440 | 500-700 | 440-640 |
| 0.2% proof Mpa, min | – | 195 | 195 | 200 | 185 |
| 1% proof Mpa, min | 220 | 220 | – | 235 | – |
| Elongation, %, min | 30 | 30 | 30 | Long 45 Tr 45 | 20 |
| Impact Kv,J, min | 80 | 80 | 80 | Long 100 Tr 60 | 60 |
| Hardness | – | – | – | 215HB max | 130-200 HB |
GX2CrNiMo19-11-2 (EN 1.4409) Heat Treatment Requirement
Solution annealing + water quenching (+AT)
Heat to 1050-1150°C for sufficient time to heat casting uniformly to temperature and water quench, or depending on thickness, accelerated air cooling.
GX2CrNiMo19-11-2 (EN 1.4409) Application
- Pumps and valves, pipe fititngs.
- Industrial machinery parts.
- Automotive.
- Cookware, electrical boxes, bearing, bushing.
- Construction parts.
- Food industry.
GX2CrNiMo19-11-2 (EN 1.4409) Machinability:
Very good, easy for machining such as milling, turning or drilling.
GX2CrNiMo19-11-2 (EN 1.4409) Weldability:
Ver good. No Preheated, no post weld heat treatment required.
GX2CrNiMo19-11-2 (EN 1.4409) vs 1.4404 vs SS316L vs CF3M
- SS316L is for steel plate, not for casting popuse. but EN 1.4409 and CF3M are casting material.
- SS316L has low Si content.
- CF3M has big range for Cr content.
- SS316L and 1.4404 has high Cr content.
| Standard | EN 10213 | EN 10088-3 | ASTM A240 | ASTM A351 |
| Grade | GX2CrNiMo19-11-2 | X5CrNiMo17-12-2 | SS316L | CF3M |
| EN / UNS | 1.4409 | 1.4404 | S31603 | J92800 |
| Chemical requirements | ||||
| C, max | 0.03 | 0.03 | 0.03 | 0.03 |
| Si, max | 1.50 | 1.00 | 0.75 | 1.50 |
| Mn, max | 2.0 | 2.00 | 2.00 | 1.50 |
| P, max | 0.035 | 0.045 | 0.045 | 0.040 |
| S, max | 0.025 | 0.030 | 0.030 | 0.040 |
| Cr | 18.0-20.0 | 16.5-18.5 | 16.0-18.0 | 17.0-21.0 |
| Mo, max | 2.0-2.5 | 2.0-2.5 | 2.0-3.0 | 2.0-3.0 |
| Ni | 9.0-12.0 | 10.0-13.0 | 10.0-14.0 | 9.0-13.0 |
| Cu, max | 0.50 | – | – | – |
| N | 0.20 | 0.11 | 0.10 | – |
| Mechanical Property | ||||
| Thickness, mm | 150 | 160 | – | – |
| Tensile Mpa, min | 440-640 | 500-700 | 485 | 485 |
| 0.2% proof Mpa, min | – | 200 | 170 | 205 |
| 1% proof Mpa, min | 220 | 235 | – | – |
| Elongation, %,min | 30 | Long 45 Tr 45 | 40.0 | 30 |
| Impact Kv,J, min | 80 | Long 100 Tr 60 | – | – |
| Hardness, HB, max | – | 215HB max | 217HB | – |
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