Form N 2 PDF Details

In the realm of structural engineering and construction, welding procedures are paramount, ensuring the integrity and safety of metallic structures. The N 2 form, officially known as the AASHTO/AWS D1.5/D1.5M:2010 ANNEX N WELDING PROCEDURE SPECIFICATION (WPS), serves as a critical blueprint for professionals in this field. Detailing both prequalified and tests or procedure qualification records validated methods, it is a comprehensive document that guides contractors and organizations through the complexities of welding. It encompasses essential aspects such as the type of welding process—ranging from manual to automatic and tandem parallel operations—and specifics on joint design, including configurations and materials used. Information on base and filler metals, including specifications and classifications, further illustrates the form's thoroughness in preparatory requirements. Additionally, the form addresses the physical setup for welding procedures, covering groove positions, electrode types, and electrical characteristics, ensuring precision in the execution of welding tasks. Techniques, preheat measures, and postweld heat treatments are meticulously specified, underpinning the importance of temperature control throughout the welding process. The provision for documenting essential variables such as heat input values highlights the form's role in promoting accuracy and consistency in welding operations. Ultimately, the N 2 form stands as a testament to the rigor and attention to detail vital in upholding safety and quality standards in welded structures.

QuestionAnswer
Form NameForm N 2
Form Length1 pages
Fillable?No
Fillable fields0
Avg. time to fill out15 sec
Other namesaws sample welding procedure specification, form welding procedure template, the creation of vi structures in first structural structure welding, form welding procedure form

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AASHTO/AWS D1.5/D1.5M:2010ANNEX N

WELDING PROCEDURE SPECIFICATION (WPS)

PREQUALIFIED

QUALIFIED BY TESTING

 

 

or PROCEDURE QUALIFICATION RECORDS (PQR)

Yes

AASHTO/AWS D1.5 Qualification Type 5.12.1 – 5.12.2

– 5.12.4

 

 

 

 

Contractor/

Organization __________________________________

Welding Process(es) ____________________________

Type:

Manual

Semiautomatic

Mechanized

 

Automatic

 

Tandem

 

Parallel

 

 

 

JOINT DESIGN USED

 

 

Single

 

 

 

Double Weld

Backing:

Yes

No

 

Material _______________

Root Opening ______

Root Face Dimension ________

Groove Angle ___________

Radius (J – U) _________

Backgouging:

Yes

No

Method ____________

Root Treatment ________________________________

BASE METALS

Material Spec. _________________________________

Type or Grade _________________________________

Thickness: Groove ____________ Fillet __________

Diameter (Pipe) ________________________________

FILLER METALS

AWS Specification______________________________

AWS Classification _____________________________

Manufacturer Trade Name________________________

SHIELDING

Flux ___________________ Mfg. Trade Name_______

Electrode-Flux (Class)___________________________

Gas Composition ______________________________

Flow Rate ______________ Gas Cup Size _________

Identification ___________________________________

Revision _______ Date __________ By ____________

Authorized by __________________ Date __________

Supporting PQR No.(s) __________________________

POSITION

 

 

 

Position of Groove ______________

Fillet __________

Vertical Progression: Up

Down

 

ELECTRICAL CHARACTERISTICS

 

Transfer Mode (GMAW):

Globular

Spray

Current: AC

DCEP

DCEN

Pulsed

Electrical Stick Out ______________________________

Other ________________________________________

TECHNIQUE

Stringer or Weave Bead __________________________

Multi-pass or Single Pass (per side)_________________

Number of Electrodes ___________________________

Electrode Spacing: Longitudinal __________________

Lateral _______________________ Angle__________

Interpass Cleaning ______________________________

PREHEAT

Preheat Temp., Min. _____________________________

Interpass Temp., Min. ____________________________

Interpass Temp., Max. ___________________________

POSTWELD HEAT TREATMENT

Temp. _________________ Hold Time _____________

Heating/Cooling Rate ____________________________

HEAT INPUT

 

 

Calculated Heat Input Value:

kJ/in

kJ/mm

Max. Heat Input _________

Min. Heat Input _________

WELDING PROCEDURE

 

 

Filler

 

 

 

 

 

 

Pass or

 

Metals

 

Current

 

 

 

 

 

 

 

 

 

 

 

Weld

 

 

Type &

 

Amps or Wire

 

Travel

 

Layer(s)

Process

Diam.

Polarity

 

Feed Speed

Volts

Speed

Joint Details

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Form N-2

Form N-2—Sample Welding Procedure Specification

269

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In the FILLER METALS AWS Specification, SHIELDING Flux Mfg Trade Name, PREHEAT Preheat Temp Min, POSTWELD HEAT TREATMENT Temp Hold, HEAT INPUT Calculated Heat Input, kJmm, WELDING PROCEDURE, Filler Metals, Current, Process, Diam, Type Polarity, Amps or Wire Feed Speed, Volts, and Travel Speed area, note down your data.

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