Hastelloy® C-22® End Caps

Complete your sanitary process system with Hastelloy C-22 end caps from Central States Industrial (CSI). We stock sizes ½ – 4 inches in Tri-Clamp® and butt weld connections.

For applications that require 3-A sanitary standards or ASME-BPE standards, CSI stocks 304 and 316L End Caps for Food, Dairy, & Beverage and BPE End Caps. We also offer AL-6XN® End Caps as another corrosion-resistant option.

Dimensions are consistent with industry standards.

Surface Finish Options
Finish CodeProduct Contact Surface

(Max Ra)*

Product Contact Surface Finish Treatment

(ID)

Non-Product Contact Surface

(Max Ra)

Non-Product Contact Surface Finish Treatment

(OD)

-PL20 µ-inch (0.5 µm)Mechanical Polish/As drawn32 µ-inch (0.8 µm)Mechanical Polish/As drawn
-732 µ-inch (0.8 µm)Mechanical Polish/As drawn32 µ-inch (0.8 µm)Mechanical Polish/As drawn
-P2525 µ-inch (0.6 µm)Electropolished**32 µ-inch (0.8 µm)Mechanical Polish/As drawn
-SFN/ASanitary Finish***/Mill FinishN/AUnpolished (Mill)
-PUN/AUnpolished (Mill)N/AUnpolished (Mill)

*20/32 µ-inch Max Ra is an approximate value and is not guaranteed. Surface finish roughness shall be physically examined for “P25” using a profilometer calibrated to standards traceable to NIST. Surface finish roughness shall NOT be subject to physical examination for “P7” or “7”.

**The interior surfaces shall be mechanically polished or as drawn to a 25 Ra µ-inch (0.8 µm) maximum finish for sizes ½” to 4” diameter (where available). The electropolishing process may increase the Ra values post electropolishing and have areas of preferential etching (e.g. frosting, shadowing, etc.). Final Ra values for electropolished tubing and fitting shall not be used as criteria of acceptance for this product.

***Sanitary Finish: Offering finish better than traditional commercial grade tube finish. Suitable for applications in sanitary/high purity hygienic industries.

Solid End Caps16AMP-Size-Material-Finish
C-22 Material Part #

(PL Finish)

Tube OD

(in)

A

(in)

16AMP-0.75-C22-PL½0.19
16AMP-1.5-C22-PL¾0.19
16AMP-2-C22-PL0.25
16AMP-2.5-C22-PL20.25
16AMP-3-C22-PL30.25
16AMP-4-C22-PL40.25
Butt Weld End Caps16W-Size-Material-Finish
C-22 Material Part #

(PL Finish)

Tube OD

(in)

A

(in)

16W-0.5-C22-PL½0.25
16W-0.75-C22-PL¾0.31
16W-1-C22-PL10.38
16W-1.5-C22-PL0.56
16W-2-C22-PL20.75
16W-2.5-C22-PL1.00
16W-3-C22-PL31.25
16W-4-C22-PL41.50
More End Caps


For 304 and 316L end caps that meet 3-A sanitary or BPE standards, visit the End Caps for Food, Dairy, & Beverage and BPE End Caps pages. CSI also offers AL-6XN® Alloy End Caps.

Still don't see what you need? Call CSI for configurations not listed or for custom fabrications.

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