Stainless Steel Stub Ends

 

Forming Process

Cold Pressing

Taking advantage of the characteristics of plastic deformation of metal, the microscopic convex peaks on the surface of the workpiece are flattened by applying pressure, thereby reducing the surface roughness. High pressure is applied in the mold cavity to make a compact molded blank. Including surface rolling, surface extrusion processing, etc. Suitable for polycarbonate, polypropylene and other materials. ​By cold pressing processing, the tensile strength and elastic modulus of the material can be improved

☆Seamless, DN15 - DN600 (1/2"~24")

The following are the specifications and dimensions of DN15 to DN600 seamless flanges. Generally, the outer diameter of the seamless flanges fitting is consistent with the outer diameter of the seamless steel pipe of the corresponding nominal diameter:

• DN15: Outer diameter 22mm.
• DN20: Outer diameter 27mm.
• DN25: Outer diameter 34mm.
• DN32: Outer diameter 42mm.
• DN40: Outer diameter 48mm.
• DN50: Outer diameter 60mm.
• DN65: Outer diameter 76mm (also 73mm).
• DN80: Outer diameter 89mm.
• DN100: Outer diameter 114mm.
• DN125: Outer diameter 140mm.
• DN150: Outer diameter 168mm.
• DN200: Outer diameter 219mm.
• DN250: Outer diameter 273mm.
• DN300: Outer diameter 324mm.
• DN350: Outer diameter 360mm.
• DN400: Outer diameter 406mm.
• DN450: Outer diameter 457mm.
• DN500: Outer diameter 508mm.
• DN600: Outer diameter 610mm.

Regarding the thickness of seamless flips, the wall thickness will vary depending on the use scenario, pressure requirements, etc. Generally speaking, common wall thicknesses range from 3 to 30mm. The models are usually divided according to the material, connection method, implementation standards, etc., such as carbon steel, stainless steel, etc.; connection methods include welding, etc.; implementation standards include GB/T 12459, etc.

☆Welded, DN15 - DN1200 (1/2"~48")

The following are the specifications and dimensions of the welded flange of DN15 to DN1200, and the outer diameter is usually consistent with the outer diameter of the steel pipe of the corresponding nominal diameter:

• DN15: Outer diameter 21.3mm.
• DN20: Outer diameter 26.9mm.
• DN25: Outer diameter 33.7mm.
• DN32: Outer diameter 42mm.
• DN40: Outer diameter 48.3mm.
• DN50: Outer diameter 60mm.
• DN65: Outer diameter 76.1mm.
• DN80: Outer diameter 88.9mm.
• DN100: Outer diameter 114.3mm.
• DN125: Outer diameter 140mm.
• DN150: Outer diameter 168.3mm.
• DN200: Outer diameter 219.1mm.
• DN250: Outer diameter 273mm.
• DN300: Outer diameter 324mm.
• DN350: Outer diameter 360mm.
• DN400: Outer diameter 406mm.
• DN450: Outer diameter 457mm.
• DN500: Outer diameter 508mm.
• DN600: Outer diameter 610mm.
• DN800: Outer diameter 813mm.
• DN1000: Outer diameter 1016mm.
• DN1200: Outer diameter 1219mm or 1220mm (slightly different standards may vary).

The wall thickness of welding flange is usually between 2 - 20mm, and it will vary depending on the use scenario, pressure requirements, etc.

The models of welding flanges are usually divided according to the material, connection method, execution standards, etc. Materials include carbon steel, stainless steel, alloy steel, titanium alloy, etc.; the connection method is mainly welding; the implementation standards include GB/T 12459, GB/T 13401, HG/T 3651, ASME B16.9, etc.

Stainless steel OCr18Ni9 grade, 0Cr18Ni9Ti, 1Cr18Ni9Ti; 304, 304L, 316, 316L, 316Ti, 317, 317L, 321, 321H; 1.4301, 1.4306, 1.4401, 1.4435, 1.4571, 1.4436, 1.4438, 1.4541; 08X18H10(0X18H10), 03X18H11(000X18H11), 03X17H14M2 (000X17H13M2), 08X18H10T(0X18H10T) and so on

Dual phase stainless steel ASTM A815-S31803,S32205,S32750,S32760

Super stainless steel ASTM 904L,B366-N08904,A403-WP317,317L,254SMO(UNS S31254)

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