Stainless steel 431(UNS S43100) is indeed a high carbon steel alloy with a minimum chromium content. Here are some key features and characteristics of stainless steel 431:
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Heat treatable: Stainless steel 431 can be hardened through heat treatment processes such as quenching and tempering. This allows for the adjustment of the material's hardness and strength to meet specific requirements.
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Good ductility: Despite being a high carbon steel alloy, stainless steel 431 retains good ductility. This means it can be formed and shaped without fracturing or losing its structural integrity.
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Resistance to metal polishing: Stainless steel 431 exhibits good resistance to metal polishing. When polished, the surface of the alloy can achieve a smooth and lustrous appearance.
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Additional alloying elements: Stainless steel 431 contains additional alloying elements such as molybdenum, sulfur, and vanadium. These elements can enhance certain properties of the steel, such as corrosion resistance and strength.
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Material strength: While stainless steel 431 offers high strength, it is important to note that it can be affected by the loss of material strength under certain conditions. Factors such as exposure to high temperatures, prolonged use at elevated temperatures, or corrosive environments can potentially impact the strength of the material.
STAINLESS STEEL ROUND BAR EQUIVALENT GRADES
| STANDARD | UNS | WNR. |
|---|---|---|
| SS 440C | S44004 | 1.4125 |
CHEMICAL COMPOSITION OF STAINLESS STEEL ROUND BAR
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 440C | 0.95 - 1.20 | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 16.00 - 18.00 | - |
MECHANICAL PROPERTIES OF STAINLESS STEEL ROUND BAR
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed* | 758 | 448 | 14 | 269HB max | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
| * Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440C, B and C. | |||||
SS Round Bar Application Industries Our Stainless Steel SS Round Bar are used in a wide range of applications and various industries. Below are a few of them:
Petrochemical Industry
Oil and Gas Industry
Chemical Industry
Power Plant Industry
Energy Industry
Pharmaceuticals Industry
Pulp & Paper Indusry
Food Processing Industry
Aerospace Industry
Refining Industry
| STANDARD | UNS | WNR. |
|---|---|---|
| SS 440C | S44004 | 1.4125 |
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 440C | 0.95 - 1.20 | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 16.00 - 18.00 | - |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed* | 758 | 448 | 14 | 269HB max | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
| * Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440C, B and C. | |||||
