Stainless Steel 420 Flanges are Crafted from high-carbon steel exhibit commendable corrosion resistance, toughness, and strength properties. With a composition comprising 0.15% carbon, along with manganese, silicon, phosphorus, sulfur, and up to 14% chromium, these flanges offer versatile applications. Various types, including the UNS S42000 Slip On Flange, orifice flange, threaded flange, weld neck flange, blind flange, and others, are utilized in diverse application scenarios. The material can undergo heat treatment to enhance hardness, and it achieves high strength when annealed.

The AISI SS 420 Weld Neck Flange features a welded neck, serving as a support for holding the pipe during welding, and offering additional strength. The material boasts a minimum tensile strength of up to 1600MPa and a minimum yield strength of up to 1360MPa, depending on the treatment temperature. The WNR 1.4021 Blind Flange is a type designed for sealing applications, available in various shapes. Flange types include threaded, screwed, forged, or plate flanges, determined by the production technique. SS 420 pipe flanges adhere to different specifications and standards, with varying dimensions and sizes ranging from ½ inches to 48 inches. Additionally, flanges come in different face types, such as Stainless Steel 420 Ring Joint Type Flanges, flat face flanges, and raised face flanges.

Stainless Steel 420 is a martensitic stainless steel that is capable of being hardened, representing a modification of Alloy 410. Similar to 410, it contains a minimum of 12% chromium, providing sufficient corrosion-resistant properties. Alloy 420 features a higher carbon content than Alloy 410, designed to enhance strength and hardness characteristics. While it exhibits good ductility in the annealed state, it can be hardened up to a Rockwell hardness of 50 HRC, the highest among the 12% chromium grades.

Due to its hardening properties, Alloy 420 is not commonly welded, although it is feasible. Martensitic stainless steels are engineered for high hardness, and in some cases, other properties may be somewhat compromised. Corrosion resistance is lower compared to the typical austenitic grades, and their operational range is limited by reduced flexibility at sub-zero temperatures and strength loss due to over-treatment at elevated temperatures. Optimal corrosion resistance is achieved when the metal is hardened and the surface is ground and polished.

We manufacture and supply a diverse range of Stainless Steel 420 Flanges, including SS 420 socket weld Flanges, SS 420 Lap Joint Flanges, SS 420 Long Weld Neck Flanges, SS 420 Orifice Flanges, SS 420 Slip On Flanges, SS 420 Threaded Flanges, SS 420 Weld Neck Flanges, SS 420 Blind Flanges, and SS 420 AWWA Flanges, SS 420 Groove Flanges, SS 420 Spectacle Blind Flanges, SS 420 Spade Flanges, SS 420 Tongue Flanges, SS 420 Ring Spacer Flanges, SS 420 Reducing Flanges, SS 420, among others.