Collar (EN Standard) standard:
European standard: EN 10253-4, EN 1092-1
German standard: DIN 2642
American Standard: ASME/ANSI B16.9, MSS SP 43
Japanese standard: JIS B 2311/2220
Russian standard: GOST 17375, GOST 17376, and so on
Material: Stainless steel 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;
Dual phase stainless steel:ASTM A815 S31803, S32205, S32750, S32760
Super stainless steel:ASTM 904L, B366-N08904, A403-WP317, 317L, 254SMO (UNS S31254)
Size range:Seamless, DN15 - DN600 (1/2 - 24 Inch); Welded, DN15 to DN1200 (1/2 - 48 Inch)
SCH: SCH 5S-SCH 160; SCH XXS