F310S Material Properties
F310S is a high chromium, medium nickel austenitic stainless steel designed specifically for high-temperature conditions. Its core characteristic is excellent antioxidant performance, which can maintain stability at temperatures up to 1093 ° C (2000 ° F) and is not prone to the formation of oxide skin. Compared to conventional stainless steels such as 304 or 316, it can maintain higher strength and creep resistance at high temperatures. This makes it an ideal material for manufacturing industrial furnaces, heat treatment equipment, burners, and other components that require severe thermal cycling.

F310S Chemical&Mechanical Properties of F310S
Chemical Composition (wt %), ASTM A182:
Carbon (C): 0.08 max
Manganese (Mn): 2.00 max
Silicon (Si): 1.50 max
Chromium (Cr): 24.0 - 26.0
Nickel (Ni): 19.0 - 22.0

Mechanical Properties (Minimum), ASTM A182:
Tensile Strength: 515 MPa (75 ksi)
Yield Strength: 205 MPa (30 ksi)
Elongation: 30%
Hardness: 217 HBW max

Why Choose SMLSCO?
Welcome to SMLSCO flange manufacturing base - Wenzhou Yongheng Steel Industry. We are your trusted flange manufacturer and stockist. The factory was established in 2018, covering an area of 5000 square meters, with 38 advanced equipment such as CNC lathes, and a monthly production capacity of 350 tons. We strictly follow international certification systems such as ISO, PED, and NORSOK M650 for production and management, ensuring that every flange leaving the factory has industrial grade precision and reliability, meeting the stringent requirements of global customers.

Introduction to Flange Facing Types
Raised Face (RF) is the most widely used type of flange sealing surface, which concentrates the bolt preload force on a smaller area by raising the contact area of the gasket, achieving reliable sealing. The Class 150 flange introduced this time uses this type of sealing surface. In addition to RF, SMLSCO can also provide various sealing surfaces according to the working conditions, such as full plane (FF) suitable for low-pressure working conditions and ring connection surface (RTJ) suitable for ultra-high pressure working conditions, to meet the specific sealing requirements of different projects.