Your #1 Source for the Welding Industry

We manufacture weld test materials, commonly called weld coupons, used for performance and procedure qualification testing.

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Train & Qualify Welders Quickly & Accurately

Our line of destructive test equipment expedites the removal and bending of weld test specimens to exact code requirements.

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Innovation
& Expertise Since 1960

We’re proud to be the most trusted source for welding coupons, destructive test equipment, and weld certification services.

Our Collections

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Pipe Weld Test Coupons
Plate Weld Test Coupons
Procedure Plate Coupons
Weld Test Kits & Coupon Combo Boxes
Equipment Parts

Always In Stock & Ready to Ship Directly to You

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Your #1 Trusted Source For The Welding Industry

Testing Services

Providing Welding Equipment Since 1960

Our History

Pipe Coupons

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Monster 2-3/4" x 5/8" - A106BMonster 2-3/4" x 5/8" - A106B
Monster 2-3/4" x 5/8" - A106B
Box of 12pcs to 364pcs
From $228.00
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2" sch. 80 - A106B2" sch. 80 - A106B
2" sch. 80 - A106B
Box of 20pcs to 510pcs
From $240.00
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2" sch. XXH - A106B2" sch. XXH - A106B
2" sch. XXH - A106B
Box of 20pcs to 510pcs
From $300.00
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6" sch. 40 - A53 B ERW6" sch. 40 - A53 B ERW
6" sch. 40 - A53 B ERW
Box of 6pcs to 210pcs
From $162.00
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6" sch. 80 x 4 - A106B6" sch. 80 x 4 - SA106B (Qty. 6)
6" sch. 80 x 4 - A106B
Box of 6pcs to 210pcs
From $204.00
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2" sch. 160 - A106B2" sch. 160 - A106B
2" sch. 160 - A106B
Box of 20pcs to 510pcs
From $280.00
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2" sch. 80 - 304/L2" sch. 80 - 304/L
2" sch. 80 - 304/L
Box of 20pcs to 510pcs
From $450.00
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6" sch. 80 - A106B - Practice/Test Combo6" sch. 80 - A106B - Practice/Test Combo
6" sch. 80 - A106B - Practice/Test Combo
Box of 1 Test Combo (8pcs,2pcs)
$260.00
2" sch. 10 - 304/L2" sch. 10 - 304/L
2" sch. 10 - 304/L
Box of 20pcs to 510pcs
From $360.00
Choose Options
2" sch. 40 - A106B2" sch. 40 - A106B
2" sch. 40 - A106B
Boxes of 20pcs to 510pcs
From $240.00
Choose Options
2" sch. XXH - 304/L2" sch. XXH - 304/L
2" sch. XXH - 304/L
Box of 2pcs to 510pcs
From $150.00
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2" sch. 40 - 304/L2" sch. 40 - 304/L
2" sch. 40 - 304/L
Box of 20pcs to 510pcs
From $390.00
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Train and Qualify Welders Quickly and Accurately

Our line of destructive test equipment expedites the removal and bending of weld test specimens to exact code requirements.

Learn More

Weld Testing & Qualification Services

In our AWS QC4 Accredited Test Facility we offer complete weld testing services as well as engineering, consulting, and procedural review.

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Kevin Penfield | QC Manager/Lead PV Engineer

“I have never ONCE had a form incorrect, coupon lost, coupon material not received in at least 13 years of business. Here’s to many more years of partnership."

Testing Services

Plate Coupons

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3/8" w/ 22.5 Deg. Bevel & Backing Combo A363/8" w/ 22.5 Deg. Bevel & Backing Combo A36
3/8" w/ 22.5 Deg. Bevel & Backing Combo A36
Box of 7 kits to 250 kits
From $162.75
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1" w/ 22.5 Deg. Bevel & Backing Combo A361" w/ 22.5 Deg. Bevel & Backing Combo A36
1" w/ 22.5 Deg. Bevel & Backing Combo A36
Box of 4 kits to 150 kits
From $109.00
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3/8" w/ 37.5 Deg. Bevel & Backing Combo A363/8" w/ 37.5 Deg. Bevel & Backing Combo A36
3/8" w/ 37.5 Deg. Bevel & Backing Combo A36
Box of 7 kits to 250 kits
From $162.75
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3/8" with 37.5 deg. bevel A363/8" with 37.5 deg. bevel A36
3/8" with 37.5 deg. bevel A36
Box of 20pcs to 500pcs
From $200.00
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3/8" with 22.5 deg. bevel A363/8" with 22.5 deg. bevel A36
3/8" with 22.5 deg. bevel A36
From $200.00
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1" with 22.5 deg. bevel A361" with 22.5 deg. bevel A36
1" with 22.5 deg. bevel A36
Box of 8pcs to 300pcs
From $96.00
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1/2" w/ 37.5 Deg. Bevel & Backing Combo A361/2" w/ 37.5 Deg. Bevel & Backing Combo A36
1/2" w/ 37.5 Deg. Bevel & Backing Combo A36
Box of 6 kits to 250 kits
From $151.50
Choose Options
1/2" w/ 22.5 Deg. Bevel & Backing Combo A361/2" w/ 22.5 Deg. Bevel & Backing Combo A36
1/2" w/ 22.5 Deg. Bevel & Backing Combo A36
Box of 6 kits to 250 kits
From $151.50
Choose Options
1/2" with 37.5 deg. bevel A361/2" with 37.5 deg. bevel A36
1/2" with 37.5 deg. bevel A36
Box of 16pcs to 500 pcs
From $176.00
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1/4" x 1" A361/4" x 1" A36
1/4" x 1" A36
Box of 10pcs
$32.50
1/4" x 3" A361/4" x 3" A36
1/4" x 3" A36
Box of 10pcs
$52.50
3/8" with 30 deg. bevel 60613/8" with 37.5 deg. bevel 6061 (Qty. 20)
3/8" with 30 deg. bevel 6061
Box of 20pcs
$310.00

Train Fast.

From fit-up to bend test, every Triangle product meets code-ready standards.

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Test Kits & Combo Boxes

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AWS Test Kit 3/8" 3G & 4G with backingAWS Test Kit 3/8" 3G & 4G with backing
AWS Test Kit 3/8" 3G & 4G with backing
1 Test Kit
$190.00
AWS Test Kit 1" 3G & 4G with backingAWS Test Kit 1" 3G & 4G with backing
AWS Test Kit 1" 3G & 4G with backing
1 Test Kit
$230.00
AWS Test Kit 3/8" 1G with backingAWS Test Kit 3/8" 1G with backing
AWS Test Kit 3/8" 1G with backing
1 Test Kit
$170.00
AWS Test Kit 1" 1G with backingAWS Test Kit 1" 1G with backing
AWS Test Kit 1" 1G with backing
1 Test Kit
$200.00
6GR Weld Test Kit6GR Weld Test Kit
6GR Weld Test Kit
1 Test Kit
$183.00
AWS Test Kit 3/8" 3G & 4G without backingAWS Test Kit 3/8" 3G & 4G without backing
AWS Test Kit 3/8" 3G & 4G without backing
1 Test Kit
$190.00
AWS Test Kit 3/8" 3G with backingAWS Test Kit 3/8" 3G with backing
AWS Test Kit 3/8" 3G with backing
1 Test Kit
$170.00
AWS Test Kit 3/8" 1G without backingAWS Test Kit 3/8" 1G without backing
AWS Test Kit 3/8" 1G without backing
1 Test Kit
$170.00
AWS Test Kit 1" 3G with backingAWS Test Kit 1" 3G with backing
AWS Test Kit 1" 3G with backing
1 Test Kit
$200.00
AWS Test Kit 3/8" 2G without backingAWS Test Kit 3/8" 2G without backing
AWS Test Kit 3/8" 2G without backing
1 Test Kit
$170.00
AWS Test Kit 1" 3G & 4G without backingAWS Test Kit 1" 3G & 4G without backing
AWS Test Kit 1" 3G & 4G without backing
1 Test Kit
$230.00
AWS Test Kit 1" 2G with backingAWS Test Kit 1" 2G with backing
AWS Test Kit 1" 2G with backing
1 Test Kit
$200.00

Equipment Parts

Already using Triangle Engineering weld testing equipment? Shop related parts and accessories to keep your operation running smoothly.

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Abrasive Wheels, TC60-04Abrasive Wheels, TC60-04
Abrasive Wheels, TC60-04
Box of 10
$460.00
.125" - 4" Diameter Die Post
.125" - 4" Diameter Die Post
1 Die Post
From $220.00
Choose Options
2.00" Diameter Die Post2.00" Diameter Die Post
2.00" Diameter Die Post
1 Die Post
$220.00
.750" Diameter Die Post.750" Diameter Die Post
.750" Diameter Die Post
1 Die Post
$220.00
1.00" Diameter Die Post1.00" Diameter Die Post
1.00" Diameter Die Post
1 Die Post
$220.00
3/8" Quick Release Cross Pin for WTS-ASSY
3/8" Quick Release Cross Pin for WTS-ASSY
1 Pin
$10.00
3.00" Diameter Die Post3.00" Diameter Die Post
3.00" Diameter Die Post
1 Die Post
$220.00
2.0625" Diameter Die Post2.0625" Diameter Die Post
2.0625" Diameter Die Post
1 Die Post
$220.00