Stainless Steel Cap

Stainless Steel Cap

stainless steel cap kaysuns

Stainless steel cap is the pipe head of buttweld fittings, it is the cover of piping or vessels. Kaysuns manufacture and supply stainless steel cap with ASME B16.9, EN/DIN standard etc, it is seamless for diameter up to 24" and cold pressed from integral stainless steel plate.

We also provide elliptical head, oval head, butterfly shape head in materials stainless steel, duplex and super duplex steel, alloy steel etc for vessel and customized design. The pressure vessel head is fabricated by qualified manufacturer and ASME U stamp is available upon requirement. All of these materials are available for third party inspection, such as SGS,BV,Lloyd’s,TUV etc.


Circular, Oval, Butterfly

Manufacture Standards:

ASME/ANSI B16.9, MSS-SP-75, DIN2617, JIS B2311/2312/2313, GB12459, GB/T13401, SH3408, SH3409, ISO 3419, ISO 5251 etc.


1/2" to 104"(DN15 ~DN2600)

Wall Thickness:


Materials of Stainless Steel Cap:

Stainless Steel ·A403 304/L,304H ·310S ·316/L,316Ti·317/L·321/H ·347/H ·S31803·S32750 ·904L
Carbon Steel A234 WPB, WPC
Low Temperature Steel A420 WPL3, WPL6
Alloy Steel A234 WP5, WP9, WP11, WP12, WP22, WP91
High Yield WPHY42, 52, 60, 65, 70
Duplex & Super Duplex A815 UNS 31803, UNS 31254, UNS S32750
Nickel Alloys alloy200, 400, K500, 600, 625, 800, 825 ,alloy 20, hastalloy B2, C22, C276
Other Grades Cu70Ni30(C71500),Cu90Ni10(C70600),Titanium

Buttwelded Fittings Catalog

*For more information about buttwelded cap, please contact us.

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