-
Call Us On
+91 97695 84950
-
Mail Us @
info@mokshtubes.com
Product Overview
Introduction to Stainless Steel 431 / Alloy 431 / UNS S43100
Stainless Steel 431 (UNS S43100) is a high-strength martensitic stainless steel known for its excellent corrosion resistance, toughness, and superior tensile strength. It is widely used in aerospace, marine, chemical, and automotive applications where both strength and corrosion resistance are key.
MOKSH TUBES & FITTINGS LLP supplies and stocks an extensive range of Stainless Steel 431 products, including pipes, tubes, sheets, plates, coils, flanges, fasteners, bars, rods, and precision-engineered components. It provides high resistance to mild acids, freshwater, and a variety of industrial chemicals. After heat treatment, this grade offers exceptional hardness and mechanical properties, making Stainless Steel 431 one of the most versatile grades in the 400-series category. The Stainless Steel 431 density is approximately 7.75 g/cm³, providing a balance between corrosion resistance, durability, and machinability.
Stainless Steel 431 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.20 max |
| Chromium (Cr) | 15.0 – 17.0 |
| Nickel (Ni) | 1.25 – 2.50 |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.040 max |
| Sulfur (S) | 0.030 max |
| Iron (Fe) | Balance |
The combination of chromium and nickel provides exceptional corrosion resistance, while controlled carbon content ensures good toughness and hardness after heat treatment.
Technical Composition
Physical Properties
| Property | Value |
|---|---|
| Density | 7.75 g/cm³ |
| Melting Point | 1450°C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 25 W/m·K |
| Electrical Resistivity | 0.60 μΩ·m |
Mechanical Properties of Stainless Steel 431
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 850 – 1000 MPa | 123,000 – 145,000 psi |
| Yield Strength (0.2% Offset) | 600 – 800 MPa | 87,000 – 116,000 psi |
| Elongation at Break | 18 – 22% | 18 – 22% |
| Hardness (Brinell) | 230 – 300 HB | 230 – 300 HB |
Products in Stainless Steel 431
MOKSH TUBES & FITTINGS LLP, with extensive experience in high-strength martensitic stainless steels and a strong supply network, offers a complete range of STAINLESS STEEL 431 products. These materials are designed for demanding applications in aerospace, marine, chemical, and automotive industries, where superior mechanical performance and corrosion resistance are essential. Our SS 431 offerings meet international quality standards, ensuring reliability, durability, and precision for both critical and general-purpose projects.
All Stainless Steel 431 products conform to ASTM A276, A479, A484, and other internationally recognized specifications.
