GX4CrNi13-4 is one type martensitic stainless steel casting grade with 12 Chromium and 4 Nickel in casting standard of EN 10283. It’s same as stainless steel CA6NM (UNI J91540) in ASTM A743, ASTM A352 and ASTM A487 standard. It’s one “400” series Martensitic Chromium Nickel stainless steel with general high strength corrosion resistant. castingquality.com
GX4CrNi13-4 Equivalent Stainless Steel material grade: castingquality.com
ASTM A352 Grade CA6NM, UNS J91540.
ASTM A743 Grade CA6NM, UNS J91540.
ASTM A487 Grade CA6NM, Class A.
ASTM A487 Grade CA6NM, Class B.
ASTM A757 Grade E3N.
Reference Casting Standards:
DIN EN 10283 – Corrosion resistant steel castings; German and English version pr EN 10283:2018
BS EN 10283:2019 Corrosion resistant steel castings
GX4CrNi13-4 (EN 1.4317) Physical Propertyies:
Density: 7.7 kgs/dm3
Specific heat: 460 J(kg-k) at 20 °C
Thermal conductivity: 26 W/(m-K) at 50 °C
27 W/(m-K) at 100 °C
Mean thermal expansion: 10.5 10-6k-1 from 20°C up to 100°C
11 10-6k-1 from 20°C up to 100°C
12 10-6k-1 from 20°C up to 100°C
Martensitic stainless steel castings can be produced in Casting Quality Industrial:
- Sand Casting
- Shell Casting
- Lost Form Casting
- Precision Lost Wax Investment Casting
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- Sand Casting
Casting Quality focus on Metal Parts industry, we provide professional service in Metal Casting field.
Sand Casting is a popular metal form method, are suitable for all materiel, such as grey iron, ductile iron, malleable iron, carbon steel, stainless steel, aluminum and bronze.
- Investment Casting
also named as precision lost wax casting, mainly suitalbe for carbon steel and stainless steel parts. We also provide grey iron and ductile iron and aluminum and bronze parts by investment casting. It can achieve the best appearance with good tolerance
- Shell Casting
Shell casting method is a good option to replace investment casting and sand casting. the quality is better than sand casting parts, suitable for bulk production.
- CNC Machining
CNC Milling, CNC turning with 5 xix CNC center, we provide precision machining for all castings based on customers design drawings.
- CAD Design
Mechanical Design service based on customers requirement, our software is Solidworks and AutoCAD.
- Tools/Mold Design
Mould design and production will be served for metal casting ad plastic injection industry. Based on our more than 10 years experience, we supply professional molds for our customers in Europe and North American.
GX4CrNi13-4 (EN 1.4317) Chemistry Property:
| Casting Standard | EN10283 |
| Stainless Steel Grade | GX4CrNi13-4 |
| EN Number | 1.4317 |
| Carbon (max) | 0.06 |
| Manganese (max) | 1.00 |
| Silicon (max) | 1.00 |
| Sulfur (max) | 0.025 |
| Phosphorus ( max) | 0.035 |
| Chromium | 12.0-13.0 |
| Nickel | 3.50-5.00 |
| Molybdenum (max) | 0.70 |
GX4CrNi13-4 (EN 1.4317) Heat treatment process: castingquality.com
Quenching and solution annealing, per different requirement, Three heat treatment processes are required in EN 10283: QT1, QT2, QT3
GX4CrNi13-4 (EN 1.4317) Stainless Steel Mechanical Property castingquality.com
| Stainless Steel Grade | Heat Treatment | Thickness mm | Test At room temperature | ||||||
| Tensile Test, min | Impact Test | ||||||||
| Name | Number | Symbol | Quenching (+Q) or Sol Annealing （+AT） | Tempering (+T) | Rp0.2 MPa | Rm MPa | A % | Temperature °F [°C] | |
| GX4CrNi13-4 | 1.4317 | +QT1 | 1000-1050 | 590-620 | 300 | 550 | 760 | 15 | 50 |
| +QT2 | 1000-1050 | 500-530 | 300 | 830 | 900 | 12 | 35 | ||
| +QT3 | 1000-1050 | 660-680 560-620 | 300 | 500 | 700 | 16 | 50 | ||
| 1. +Q means: Quenching in air or liquid. 2. +AT means: Solution annealing + quenching in water. 3. 1MPa = 1 N/MM2. | |||||||||
GX4CrNi13-4 Welding conditions:
Preheated temperature 20 to 200 °C, post weld heat treatment need temper heat treatment.
GX4CrNi13-4 Typical Casting Application castingquality.com
- Pump Castings.
- Valve Castings.
- Water Turbines castings: Francis Blade, Runner Crown, and Wicket Gates.
- Heat Exchange System.
Cast Stainless Steel GX4CrNi13-4 VS CA6-NM VS E3N
GX4CrNi13-4 is same as CA6-NM in final application, it’s chemistry is similar.
| Stainless Steel Grade | Chemical Composition / Physical Properties % (max, except where range is given) | ||||||||
| Standard | Grade | Carbon | Manganese | Silicon | Sulfur | Phosphorus | Chromium | Nickel | Molybdenum |
| GX4CrNi13-4 | EN1.4317 | 0.06 | 1.00 | 1.00 | 0.025 | 0.035 | 12.0-13.0 | 3.50-5.00 | 0.70 |
| ASTM A352 A743 A487 | CA6NM | 0.06 | 1.00 | 1.00 | 0.04 | 0.03 | 11.5-14.0 | 3.5-4.5 | 0.4-1.0 |
| ASTM A757 | E3N | 0.06 | 1.00 | 1.00 | 0.03 | 0.03 | 11.5-14.0 | 3.5-4.5 | 0.4-1.0 |
ASTM A487 Grade CA6NM (Class A or B) and ASTM A757 Grade E3N also require total content of residual elements 0.50 (Cu 0.50, W 0.10, V 0.05)
| Stainless Steel Grade | Tensile Strength min | Yield Strength, min | Elongation, min | Reduction of Area, min | Hardness max | Impact Requirement Charpy V-Notch Ft-lbf [J] | ||||||
| Standard | Grade | UNS | Ksi | MPa | Ksi | MPa | % | % | HB | Average | Single | Temperature °F [°C] |
| ASTM A743 | CA6NM | J91540 | 110 | 755 | 80 | 550 | 15 | 35 | 285 | – | – | – |
| ASTM A352 | CA6NM | J91540 | 110-135 | 760-930 | 80 | 550 | 15 | 35 | – | 20 [27] | 15[20] | -100 [-73] |
| ASTM A487 | CA6NM Class A | 110-135 | 760-930 | 80 | 550 | 15 | 35 | – | – | – | – | |
| ASTM A487 | CA6NM Class B | 100 | 690 | 75 | 515 | 17 | 35 | 255 | – | – | – | |
| ASTM A757 | E3N | 110 | 760 | 80 | 550 | 15 | 35 | – | 20 [27] | 15[20] | -100 [-73] | |
