What is X17CrNi16 2 equivalent material?
The main equivalent material for X17CrNi16-2 is AISI 431, which is also known as UNS S43100 in the US. Other equivalents include the European designation EN 1.4057, the Japanese JIS SUS431, and the Chinese 1Cr17Ni2.
What is 1.4057 material equivalent to ASTM?
The steel grade 1.4057 ( also called ≈ ASTM 431 and SS2321) is a high tensile strength martensitic stainless steel with good machinability. The steel suits good for production of corrosion resistance details by machining, and where the steel needs to be resistive to strong oxidizing acids e.g. nitric acid.
Chemical composition and properties of stainless steel AISI 431 (1.4057 / BS 431S29)
|
C |
Si |
Mn |
P |
S |
N |
Cr |
Cu |
Mo |
Ni |
Ti |
|---|---|---|---|---|---|---|---|---|---|---|
|
0,12 - 0,22 |
≤ 1,00 |
≤ 1,50 |
≤ 0,04 |
≤ 0,03 |
- |
15,0 - 17,0 |
- |
- |
1,50 - 2,50 |
- |
Mechanical properties of 431, UNS S43100, S80, X17CRNI16-2, and 1.4057 martensitic stainless steels
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed * | 862 | 655 | 20 | 285 max | – |
| 204 | 1345 | 1055 | 20 | 388 | 50 |
| 316 | 1295 | 1035 | 19 | 375 | 53 |
| 427 | 1350 | 1080 | 19 | 388 | # |
| 538 | 1140 | 965 | 19 | 321 | # |
| 593 | 1015 | 770 | 20 | 293 | 64 |
| 650 | 960 | 695 | 20 | 277 | 84 |
Physical properties of 431, UNS S43100, S80, X17CRNI16-2, and 1.4057 martensitic stainless steels
| Grade | kg/m³ | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | °C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 431 | 7800 | 200 | 10.2 | 12.1 | - | 20.2 | - | 460 | 720 |
1.4057 Stainless Steel Corrosion Resistance
As a chromium-nickel steel, AISI 431 (1.4057, BS 431S29, X17CrNi16-2) exhibits good corrosion resistance. However, this material is susceptible to intergranular corrosion. A bright metallic surface provides optimal corrosion resistance.
1.4057 Stainless Steel Weldability
If filler metal is required, 1.4430 (AISI AWS316L) or 1.4370 should be used. This is especially important when weld strength is low. When using filler metal, the preheating step can be omitted. Otherwise, preheating to 100°C to 300°C is necessary.
AISI 431 Stainless Steel Heat Treatment and Hot Forming
Hot Forming: 800-1100 °C | Cooling Method: Slow Cooling
Annealing: 680-800 °C | Cooling Method: Furnace Cooling, Air Cooling
Applications of AISI 431 Stainless Steel
Due to its high strength, AISI 431 (1.4057, BS 431S29, X17CrNi16-2) stainless steel is often used in components subjected to high stress. This includes mechanical engineering and turbine manufacturing, the automotive industry, and the aerospace industry. The material is also used in the chemical, petrochemical, and oil industries, as well as in power plant construction.
EN 1.4057 Stainless Steel vs. EN 1.4301 Stainless Steel
1.4057 (martensitic stainless steel) is known for high strength and moderate corrosion resistance, making it suitable for high-load applications like shafts and pump parts, especially when quenched and tempered. In contrast, 1.4301 (austenitic stainless steel) is the more common, versatile type 304 stainless steel, often used in general-purpose applications and is not heat-treatable for hardening.
GNEE currently has AISI 431 products in stock, including: sheets, plates, coils, strips, tubes, bars, and wires. In addition, we offer a variety of surface treatments for your selection, such as: No. 1, 2B, 2D, BA, No. 3, No. 4, HL, No. 8, sandblasting, etc.
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