Triangle Engineering

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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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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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
Sale priceFrom $228.00
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2" sch. 10 - 304/L2" sch. 10 - 304/L
2" sch. 10 - 304/L
Box of 20pcs to 510pcs
Sale priceFrom $360.00
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2" sch. 40 - A106B2" sch. 40 - A106B
2" sch. 40 - A106B
Boxes of 20pcs to 510pcs
Sale priceFrom $240.00
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2" sch. 40 - 304/L2" sch. 40 - 304/L
2" sch. 40 - 304/L
Box of 20pcs to 510pcs
Sale priceFrom $390.00
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2" sch. 80 - A106B2" sch. 80 - A106B
2" sch. 80 - A106B
Box of 20pcs to 510pcs
Sale priceFrom $240.00
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2" sch. 80 - 304/L2" sch. 80 - 304/L
2" sch. 80 - 304/L
Box of 20pcs to 510pcs
Sale priceFrom $450.00
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2" sch. 80 - 60612" sch. 80 - 6061
2" sch. 80 - 6061
Box of 20pcs to 100pcs
Sale priceFrom $440.00
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2" sch. 80 - SA335 P52" sch. 80 - SA335 P5
2" sch. 80 - SA335 P5
Box of 10pcs
Sale price$390.00
2" sch. 80 - SA335 P112" sch. 80 - SA335 P11
2" sch. 80 - SA335 P11
Box of 10pcs
Sale price$350.00
2" sch. 80 - SA335 P222" sch. 80 - SA335 P22
2" sch. 80 - SA335 P22
Box of 10pcs
Sale price$360.00
2" sch. 80 - SA335 P912" sch. 80 - SA335 P91
2" sch. 80 - SA335 P91
Box of 10pcs
Sale price$450.00
2" sch. 160 - A106B2" sch. 160 - A106B
2" sch. 160 - A106B
Box of 20pcs to 510pcs
Sale priceFrom $280.00
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Plate Coupons

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1/4" x 1" A361/4" x 1" A36
1/4" x 1" A36
Box of 10pcs
Sale price$32.50
3/8" x 1" A363/8" x 1" A36
3/8" x 1" A36
Box of 10pcs
Sale price$42.50
1/4" x 1" 304 SS1/4" x 1" 304 SS
1/4" x 1" 304 SS
Box of 5 pcs
Sale price$36.25
1/4" x 1" 60611/4" x 1" 6061 (Qty. 10)
1/4" x 1" 6061
Box of 10pcs
Sale price$50.00
1/4" x 3" A361/4" x 3" A36
1/4" x 3" A36
Box of 10pcs
Sale price$52.50
3/8" with 22.5 deg. bevel A363/8" with 22.5 deg. bevel A36
3/8" with 22.5 deg. bevel A36
Box of 20pcs to 500pcs
Sale priceFrom $200.00
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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
Sale priceFrom $200.00
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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
Sale priceFrom $162.75
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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
Sale priceFrom $162.75
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3/8" with 22.5 deg. bevel 304 SS3/8" with 22.5 deg. bevel 304 SS
3/8" with 22.5 deg. bevel 304 SS
Box of 10pcs
Sale price$245.00
3/8" w/ 22.5 Deg. Bevel & Backing Combo 304 SS3/8" w/ 22.5 Deg. Bevel & Backing Combo 304 SS
3/8" with 37.5 deg. bevel 304 SS3/8" with 37.5 deg. bevel 304 SS
3/8" with 37.5 deg. bevel 304 SS
Box of 10pcs
Sale price$245.00

Test Kits & Combo Boxes

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