Description

S275 is a low carbon, structural steel that possesses good strength and machinability. It is commonly used in various construction applications due to its high load-bearing capacity and durability.

Applications

S275 is widely used in structural components, such as beams, columns, and structural frameworks in buildings and bridges. It is also utilized in manufacturing machinery and equipment for various industries.

Blacksmith Applications

S275 can be used by blacksmiths for creating ornamental ironwork, decorative elements, and architectural features due to its excellent workability and aesthetic appeal. It is suitable for forging tools, blades, and other blacksmithing applications where strength and versatility are required.

S275 Forging Temperature

Forging of S275 should be done between 1100°C - 1200°C, followed by slow cooling in a furnace or insulating material.

S275 Heat Treatment

S275 Annealing Temperature

Annealing of S275 is typically performed at 860°C - 890°C for a sufficient amount of time, followed by slow cooling in the furnace to relieve internal stresses.

S275 Normalizing Temperature

Normalizing can be carried out at 900°C - 950°C for a proper soak time, followed by air cooling.

S275 Hardening Temperature

S275 does not require hardening as it is a structural steel primarily used for load-bearing purposes. If high strength is desired, it can be achieved through cold working or heat treatment.

S275 Tempering Temperature

Tempering is not typically required for S275. If desired, it can be performed at temperatures between 550°C - 660°C to improve toughness and reduce brittleness.

Machinability

S275 has a machinability rating of 75, indicating good machinability with appropriate cutting tools and techniques.

Weldability

S275 has good weldability. It can be easily welded using conventional welding methods without the need for preheating or post-weld heat treatment. However, care should be taken to avoid excessive heat input to prevent distortion.