Consumable Inserts

Imperial Weld Ring manufactures consumable inserts in both standard and custom sizes and styles that meet AWS/ASME 5.30 and MIL-I-23413 standards. Class 1, Class 2, Class 3/5, and Class 4 (A, J, K, and Y shapes, respectively) as well as Imperial's custom T-shape inserts are available in aluminum, carbon steel, stainless steel, titanium, chrome-moly, Hastelloy and Inconel alloys in unlimited diameters ranging as small as ¼" to larger than 100". Imperial's consumable weld inserts ensure a full penetration root pass and seamless inside diameter (ID) weld bead that meets the requirements of the most stringent weld procedures in critical applications.

Imperial's consumable inserts increase the strength of the tube weld and provide a smooth surface on the inside of the weld joint for applications where unrestricted ID is crucial. Inserts can be used in any application where a strong, seamless joint is desired, and have successfully been used for decades. Imperial's consumable inserts commonly serve the steam generation, nuclear power, fossil fuel power generation, automotive, aerospace, OEM, off-shore oil platform, ship building/submarine, and construction industries. For more information about our welding consumable inserts, see the table below, or contact us directly.

Consumable Insert Types

Class 1, Class 2, Class 3, Class 4, and Class 5 cross-sections as specified in AWS/ASME 5.30 are stock. Imperial's Special-T inserts are manufactured to customer approved prints for each application.

Type	Cross Sections		Nominal Diameter	Dimensions
				(D)	(W)	(H)	(d2)
Class 1 “A” Shape	Class 1-A Shape Cross Section	Class 1-A Shape	3/32 1/8 5/32	.094 in. .125 in. .156 in.	.032 in. .047 in. .063 in.	.041 in. .055 in. .063 in.	- - -
Class 2 “J” Shape	Class 2-J Shape Cross Section	Class 2-J Shape	1/8 5/32	.125 in. .156 in.	.047 in. .063 in.	.055 in. .063 in.	.086 in. .110 in.
Class 3 & Class 5 “K” Shape	Class 3-K &Class 5-K Shape Cross Section	Class 3-K Shape	1/16 X 1/8 1/16 X 3/16 1/8 X 5/32	- - -	.062 in. .062 in. .125 in.	.125 in. .188 in. .156 in.	- - -
Class 4 “Y” Shape	Class 4-Y Shape Cross Section	Class 4-Y Shape	1/8 5/32	.165 in. .205 in.	.078 in. .093 in.	.140 in. .175 in.	- -
Custom “T” Shape	Special T-Shape Cross Section	Special T-Shape	Per Customer Requirements

* Cross sectional dimensions of all shapes above can be modified per custom requirements.

** All styles above can be supplied in coil form or individual preformed rings.

Examples of Our Work

• High Temperature Alloy Consumable Insert for the Nuclear Industry
• Custom Metal "T" Consumable Inserts for Orbital & Thin Wall Welding

Stock Materials Available

Consumable Insert Capabilities

Additional Information