Lap Joint End Rings

Lap Joint End Ring – Used in lieu of Stub Ends. A ring section c/w chamfered ID for welding to pipe.

Technical Specifications:

• Products are manufactured to customer specifications only.
• Standard surface finish is 125-250 RMS serrated finish. Other finishes available upon request.
• c/w a standard shop primer on carbon steel products for rust inhibitor purposes.
• Standard materials for manufacturing are: SA516 Gr. 70N, 316/316L Stainless Steel, 304/304L Stainless Steel and Chrome-moly. Other alloys can be employed upon request.

Forming process：Cold Pressing

Size range：Seamless, DN15 – DN600 (1/2″ – 24″); Welded, DN15 to DN1200 (1/2″~48″)

Manufacturing standard:

• European standard: EN10253-4; EN 1092-1
• German standard: DIN2642
• National standard: GB/T12459, GB/T13401, HG/T21635, HG/T21631
• American standard: ASME/ANSI B16.9 MSS SP43
• Japanese standard: JIS B 2311/2220
• Russian standard: GOST 17375/17376, and so on
• Non-standard customized processing drawings are also acceptable
• Pressure rating ：SCH5S-SCH160；XXS

Material：

• Stainless steel OCr18Ni9、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)