Introduction of Stainless Steel GX40CrSi28 (EN 1.4776)
Manufacture Process for Stainless Steel GX40CrSi28 (EN 1.4776)
- Sand Casting
- Investment Casting, precision lost wax casting
Our Services
- 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.
- Permanent Mold Casting
For aluminum parts and Brozne parts
- 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.
PDF VIEWContent for Stainless Steel GX40CrSi28 (EN 1.4776)
Standard of Stainless Steel GX40CrSi28 (EN 1.4776)
EN 10295 Heat resistant steel castings.
DIN 17465 Heat resistant steel castings
GX40CrSi28 (EN 1.4776) Equivalent Material Grades
- America: ASTM A608 Grade HC30
- America: ASTM A297 Grade HC ( Type 28 Chromium)
- Japan: JIS G5122 Grade SCH 2X2
- China: GB/T 8492 Grade ZG40Cr28Si2
GX40CrSi28 (EN 1.4776) Material Physical Property
Density: 7.5-7.6 kgs/dm3
Specific heat: 500 J(kg-k) at 20 °C
Thermal conductivity: 18.8 W/(m-K) at 20 °C
21.0 W/(m-K) at 100 °C
Thermal expansion: 11.5 10-6k-1 from 20°C up to 400°C
14 10-6k-1 from 20°C up to 800°C
16 10-6k-1 from 20°C up to 1000°C
GX40CrSi28 (EN 1.4776) Chemical Composition Requirements
| Casting Standard | EN10295 | DIN 17465 |
| Stainless Steel Grade | GX40CrSi28 | GX40CrSi29 |
| EN Number | 1.4776 | 1.4776 |
| Carbon | 0.30-0.50 | 0.30-0.45 |
| Manganese (max) | 1.00 | 0.5-1.0 |
| Silicon | 1.00-2.50 | 1.00-2.50 |
| Sulfur (max) | 0.030 | 0.030 |
| Phosphorus ( max) | 0.040 | 0.035 |
| Chromium | 27.0-30.0 | 27.0-30 |
| Nickel ( max) | 0.10 | – |
| Molybdenum (max) | 0.50 | – |
| W (max) | 0.2 | – |
| Nb (max) | 0.20 | – |
| V (max) | 0.08 | – |
| Cu (max) | 0.20 | – |
| Co (max) | 0.50 | – |
GX40CrSi28 (EN 1.4776) Mechanical Property
| Stainless Steel Casting Grade | Heat Treatment | Hardness | Test At room temperature | ||||||
| Tensile Test, min | |||||||||
| Standard | Name | Number | Symbol | Annealed | HB30 | Rp0.2 MPa | Rm MPa | A % | |
| EN10295 | GX40CrSi28 | 1.4776 | – | As-cast condition | – | – | – | – | |
| DIN 17465 | GX40CrSi29 | 1.4776 | – | As-cast condition | – | – | – | – | |
The hardness of GX40CrSi28 will be less than 320HBW in annealed condition.
Creep properties:1% creep limit in N/mm2.
| Stainless Steel Casting Grade | 600°C | 700°C | 800°C | 900°C | |||||||||||
| sr | s1 % | sr | s1 % | sr | s1 % | sr | s1 % | ||||||||
| Standard | Name | Number | 100 | 1000 | 10000 | 100 | 1000 | 10000 | 100 | 1000 | 10000 | 100 | 1000 | 10000 | |
| EN10295 | GX40CrSi28 | 1.4776 | – | 40 | 26 | 25 | 21 | 11 | – | – | 5 | 8 | 6.5 | 1.5 | |
| DIN 17465 | GX40CrSi29 | 1.4776 | – | – | 26 | – | – | 11 | – | – | 5 | – | – | 1.5 | |
GX40CrSi28 (EN 1.4776) Heat Treatment Requirement
As-cast condition (no heat treatment).
Castings may be supplied in annealed condition (800-850°C) in which cases a maximum hardness values may be agreed.
GX40CrSi28 (EN 1.4776) Application
- Rollers and grating.
- Furnace, burner beds for garbage incinerators.
- Heat Exchanger System.
- Cement Industry
GX40CrSi28 (EN 1.4776) Machinability:
NOT BAD
GX40CrSi28 (EN 1.4776) Weldability:
In DIN 17465, the covered electrode is type of 30 or 29.9; Wire or rod is X8Cr30 (1.4773) or X10CrNi30-9(1.4337). Preheated at temperature 700-800°C, the casting after welding (post weld heat treatment) should be slow cooling in furnace.
GX40CrSi28 (EN 1.4776) Maximum use temperatures
1150 °C MAX
As a professional manufacturer in China, We Casting Quality focus on Metal Parts OEM industry, and provide solutions and services in Metal Casting field as following:
- Sand Casting
- Investment Casting, Lost Wax process
- Shell Casting
- Lost Form Casting
- CNC Machining
- CAD Design
- Tools/Mold Design
Material Supplied
- Cast Iron Castings (Grey Iron, Malleable Iron, Ductile Iron)
- Carbon Steel and Alloy Steel Castings
- Stainless Steel and Duplex Stainless Steel Castings
- Aluminum Castings
- Bronze and Brass Castings
- Titanium and Cobalt Alloy Castings
What We Can Do
- Design Ability
Our engineers will help you to improve the designs based on casting technology, then The simulation software will be processed to verify the casting pouring system. Pro/E, Solidworks, AutoCAD and ProCast are available in Casting Quality Industrial.
- Saving Cost
Some manufacture processes may lead high cost. We will analyse the designs and advise the suitable methods to our customers. The best solution will be adopted.
- Quality Control
From the raw material selecting to bulk production processing, all procedures will follow PPAP program if necessary. The certificates will be provided including chemistry, hardness, mechanical property or NDT testing.
- Production Capacity
The max iron/steel castings can reach 30tons in weight, meanwhile the minus casting is around 1gram only.
We also have prototyping and 3D scanning ability for sample plan.
- Logistic Service
The products will be delivered directly to customer’s workshop, which will save plenty of work for clients.