Why Is There Weld Testing? ASM – AWS (NTX) Joint Meeting Michael S. Beaton, PE 17 February, 2011

AWS WELDING CODES 34 PAGES OF CODES, SPECIFICATIONS, AND RECOMMENDED PRACTICES34 PAGES OF CODES, SPECIFICATIONS, AND RECOMMENDED PRACTICES D1.1 STRUCTURAL WELDING CODE – STEELD1.1 STRUCTURAL WELDING CODE – STEEL D1.2 –ALUMINUMD1.2 –ALUMINUM D1.3 – SHEET STEELD1.3 – SHEET STEEL D1.4 -REINFORCING STEELD1.4 -REINFORCING STEEL D1.5 BRIDGE WELDINGD1.5 BRIDGE WELDING

AWS WELDING CODES, cont AWS WELDING CODES, cont. D1.6 -Structural Welding Code—Stainless SteelD1.6 -Structural Welding Code—Stainless Steel D1.8 Structural Welding Code -Seismic SupplementD1.8 Structural Welding Code -Seismic Supplement D1.9 Structural Welding Code—TitaniumD1.9 Structural Welding Code—Titanium D3.6 UNDERWATER WELDINGD3.6 UNDERWATER WELDING ASME BPVCASME BPVC API 1104API 1104 AAR Appendix WAAR Appendix W ABSABS Other industries and companies, automotive, airframe & powerplant, Navy NuclearOther industries and companies, automotive, airframe & powerplant, Navy Nuclear …

ASME BOILER & PRESSURE VESSEL CODE – Section IX -in QW-100.1: “The purpose for qualification of a WPS is to determine that the weldment proposed for construction is capable of providing the required properties for its intended application. Welding procedure qualification establishes the properties of the weldment,…”-in QW-100.1: “The purpose for qualification of a WPS is to determine that the weldment proposed for construction is capable of providing the required properties for its intended application. Welding procedure qualification establishes the properties of the weldment,…” -in QW-100.2: “In performance qualification, the basic criterion established for welder qualification is to determine the welder’s ability to deposit sound weld metal.”-in QW-100.2: “In performance qualification, the basic criterion established for welder qualification is to determine the welder’s ability to deposit sound weld metal.”

What do we test? Visual InspectionVisual Inspection

What do we test? Transverse- weld TensilesTransverse- weld Tensiles (generally, two per WPS qualification)(generally, two per WPS qualification) Full size tubeFull size tube All-Weldmetal TensileAll-Weldmetal Tensile

Installing an Extensometer on an All-Weldmetal Tensile Sample

Defects in Weld Revealed by the Tensile Test

What do we test? BendsBends (generally, four per WPS qualification)(generally, four per WPS qualification) 2-root + 2-face, or2-root + 2-face, or 4-side4-side (depends on material thickness)(depends on material thickness)

What do we test? NICK BREAKNICK BREAK

What do we test? Charpy V-Notch ImpactCharpy V-Notch Impact Weld (CW)Weld (CW) HAZ (CH)HAZ (CH) Fusion LineFusion Line Fusion Line +1mmFusion Line +1mm Fusion Line +5mmFusion Line +5mm

What do we test? CHARPY’s -Sets of three – most CodesCHARPY’s -Sets of three – most Codes Set of five, take middle three – AWS D1.5Set of five, take middle three – AWS D1.5

What do we test? Hardness SurveysHardness Surveys –NACE –API –EN –others VICKERS INDENTATIONS

What do we test? MICROSTRUCTURAL ANALYSISMICROSTRUCTURAL ANALYSIS Volume Fraction by Systematic Manual Point Count (E562)Volume Fraction by Systematic Manual Point Count (E562)

Mixed filler metal deposits discovered in a weld cross section

Trinity Metals Laboratory QUALITY PHILOSOPHY QUALITY is a fundamental business strategy for Trinity Metals Laboratory.QUALITY is a fundamental business strategy for Trinity Metals Laboratory. Our GOAL is to be the best provider of testing services in our market in terms of accuracy, dependability, and value to our customers.Our GOAL is to be the best provider of testing services in our market in terms of accuracy, dependability, and value to our customers. We are committed to providing our customers with consistently high quality testing services,We are committed to providing our customers with consistently high quality testing services, –defect free –on time –at competitive prices.