As per my knowledge, test coupons are to be connected to the structure and can be measured off-line & IR free potential. Please explain us the reason for not connecting test coupon to the structure. RE: Test coupons RustBucket (Automotive) 31 Jan 06 18:20.
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Production Test Coupons
Production Test Coupons velosi05 (Materials) (OP) 19 Jul 05 04:55. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Cancel. Red Flag Submitted. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
PWHT Coupons weldquals (Materials) (OP) 23 Nov 12 04:27. To All, A.For ordering plate from the mill a Plate material specification is been issued. B. One of the requirement for ordering is a PWHT coupon specifying the time and temperature it has to undergo . Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting
Mechanical testing must be on parts or on coupons
The tensile bar is the lot-to-lot process control; coupons subsequently are not necessarily required in production lots unless there is a problem with the tensile sample. The end user should specify in writing when the job is awarded exactly what is required in production. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or
Corrosion Coupons and Probes required
Main thing is you monitor somehow if the product is corrosive, whether coupons or another method, but very rare to see coupons and chemical inhibition on NGL lines, check the cource of product to help determine if needed. RE: Corrosion Coupons and Probes required ? Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students
Steel Casting Test Coupons, Differences
For example if coupons freeze more quickly, there may be grain size, directionality, and chemical segregation differences. Red Flag This Post. Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Cancel.
WQT 3G Position
When setting up test coupons, I use a 6 inch spirit level to set the orientation. The bubble must be between the two parallel lines. Once the test coupon is in the test position, it cannot be moved until the test is completed. If the coupon is too high, the welder can stand on a block of wood. It the test coupon is too low, the welder can crouch.
Tensile coupon test
Tensile coupon test. I have carried out several coupon tests (rectangular coupons similar to those of ASTM E8). Some of these tests have kind of weird behavior. The problem arises when I simulate results with ABAQUS. It goes pretty well until a few steps after necking. Test and ABAQUS results match exactly until several steps before fracture.
Is anybody using the Professional version of Draftsight
The containing message offers 25 pct off the price if you buy by May 9th, on a 30 day free trial. Mike Halloran Pembroke Pines, FL, USA . RE: Is anybody using the Professional version of Draftsight? fmath (Industrial) (OP) 29 Apr 14 18:44.
Lost hot tap coupon in a pipe
Lost hot tap coupon in a pipe. Lost hot tap coupon in a pipe. seasar (Mechanical) (OP) 10 Jan 12 17:29. Had a bit of an oops moment earlier when contractor were performing a hot tap on a glycol line in that the pilot bit broke. off and the coupon dropped into the pipe. The next thing the pipe. does is …
Test Coupon Dimensions
what is the dimensions of a welding procedure & welder performance qualification test coupons as per ASME Section IX or other referencing code sections..? Red Flag This Post. Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Cancel.
What is the main function of corrosion coupon
A corrosion-resistant film might be created in one area, but wiped off in other area of different flow or turbulent flow. In testing, sometimes surprises happen. RE: What is the main function of corrosion coupon Coupons on the top of the line (usually at an accessible high point in the line) don't get pitting. And yes, the material of the
Tensile Testing of 3D printed metallic coupons
Yes, "test coupons" are used to prove test coupon properties, and then those properties are used to design the metal shapes in the final part. Been that way since metallurgy began in the 1810-1830's. BUT! 3D modelling breaks every one of the "assumptions" safely made by engineers since blacksmithing began.
Simulation Test Coupon & Production Test Coupon
Thickness:: Shell:12 mm,Head:18 mm. 1.Please advice whether Simulation test coupon & production impact test coupon (PTC) as per UG-84 (i) is required? 2.Is pressure part includes Fasteners? 3.Is there any flow chart/charts available to decide on PTC for carbon steel & alloy steel material?
test coupon wall thickness and bevel preparation
21 Mar 08 18:37. I am working on WPS and PQR for canister lid welding and have some questions about the test coupon preparation. The wall thickness of the canister structure lid is 3" wall thickness (which will weld to the outer shell of the canister) and have a 30° bevel angle with 1.25" deep. But the weld penetration requirement is 1".
Simulation Heat treatment of Mechanical test coupons of
RE: Simulation Heat treatment of Mechanical test coupons of Raw materials. Don56 (Mechanical) 8 Jun 18 16:56 The heat treatment should be performed on each heat and slab/batch as the mechanical properties of materials governed by A/SA-20 are based on slab not just heats of material.
2 coupons in one pqr
A PQR is a report of the fabrication of a coupon, to prove out a welding procedure - WPS. It is not unusual for 1 WPS to be supported by two [or more] PQR's. But one coupon per PQR record/report. Two coupons requires two sets of bends and tensiles. We both know that the Sch40 was easier to bend, thus an easier test to pass.
WQT per ASME sec IX
QW-320 & 321 provides this information, which is summarised below: Immediate Retest Using Visual Examination A welder who fails to satisfy the visual examination criteria for a welded test coupon is allowed an immediate retest but must make two consecutive test coupons, for each test position failed, and both must satisfy the visual examination criteria.
Choosing a Welding Coupon
I am making an assumption and going off of past data that it can drop >5ksi if the interpass temperature is too great along with the PWHT. Hardness HB - So far my choices have come down to a few coupons in the range of 217-225. Charpy: 15/20 ft/lb CODES: API 6A / ASME IX / NACE MR0175 / DNV OS-E-101
API 6A TC vs. QTC
The TC (Test Coupon) or QTC (Qualification Test Coupon) is the piece of metal from which the test sepcimens are machined. It can be either a (sacrificial) production part, a prolongation on a production part, or a separate coupon with a simple geometry used …
Subcontracted weld testing
As example: A contractor sends 6 x pipe coupons to a laboratory for radiography (or in your case bend tests) with coupons marked with welder ID. An NDT request form accompanies these coupons stating all the relevant information (eg. code to be tested to, pipe OD, pipe WT, welding position, welding process, welder ID and sometimes welders full
Supplementary coupon of PQR
RE: Supplementary coupon of PQR. Genetix (Petroleum) 2 Jun 16 02:59. As per QW-403.6, the minimum base metal thickness qualified is the thickness of Test Coupon T or 5/8" (16mm) whichever is less. In your case 12.70mm test coupon thickness shall be the minimum base metal thickness qualified. WPS may get total base metal thickness range of 12
Requirement of test coupon as per UCS 85
Requirement of test coupon as per UCS 85. Requirement of test coupon as per UCS 85. sanshu1111 (Mechanical) (OP) 24 Sep 13 04:34. Heads are cold formed using normalized plates (P No 1, Group 1. Heads are subsequently normalized after cold forming. Do we need test coupon to represent normalizing after forming as per the requirement of UCS 85 (f
Installation of Corrosion Coupon on bottom of pipe as
On a recent project our Middle East Client requested corrosion coupons be placed at the 6 o'clock position as opposed to the 12 o'clock position on the pipe. There are several problems this has created. 1) Pipe is large diameter 36", 30", 16" and 4" but all pipe is buried 1 meter to TOP and a Valve Pit is required to maintenance these.
PWHT cycles for C.S. test coupon
Hi JT Seng 123, 3 PWHT cycles maximum is a typical requirement for many oil companies. Typical requirement calls for 1 shop PWHT following shop fabrication and provisions for maximum 2 PWHT's for shop and field repair. weld joints undergong more than 2 repairs may be cut and rewelded at the discretion of the client/ owner's inspector.
CJP 316SS Plate
Have you seen any coupons with the NEW flux coated S/S TIG wire. I was shown two samples, 6" Sch 10 304L that looked pretty good. This was a 2 pass, walking the cup weld. I didn't see them welded but they were supposed to have been welded with only the ends capped with no purge. I'm try to get a 6" Sch 40 S/S coupon welded for a better check.
Corrosion probe and corrosion coupon
The main pipe can be inspected when needed (perhaps once every few years) to assess the corrosion and the lining of the pipeline by bypassing the flow through the by pass arrangement. I think at least you're inspecting the "real" pipe. RE: Corrosion probe and …
ASME IX Brazing Procedure Qualification: Tension Testing
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CWI Test on the 3rd. of Oct. :-( :-(
The deal with part B is the trick questions, Linda will help you with that. If you took the class with Gerould Taylor I would try to get his wife Linda to help you. Also more tricks, for the samples coupons the question will say "looking at sample A1" make sure it is A1 and not B1, B1 will be on the other side of the plate.
QW-452(b) thickness qualified
I disagree in that I interpret QW-452.1 (b) as to state that ALL thickness (t) of weld metal in the Coupon qualifies only to 2t. The following statement in QW-452.1 (b) that 1/2" thk. and over with a minimum of three layers qualifies to Maximum To Be Welded, I interpret through notes 1 & 2 only addresses the thickness of each process (or welder
Required sized of steel coupon taken from existing beam or
Is there a standard size in taking steel coupons from existing steel members for purposes of determining the tensile strength? RE: Required sized of steel coupon taken from existing beam or column? Ron Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Cancel.
What is the Governing thickness
The governing thickness in a component repair is the excavation depth to remove the defect, not the thickness of the component or pressure boundary. In this case, this is a partial penetration weld repair. SA-350 addresses weld repairs (See section 10) and reverts to ASME B&PV Code, Section IX guidelines for qualification of a procedure and welder.
Welder Performance Qualification
The company I work for uses Section IX to qualify welders. We currently X-ray the welded coupons to ensure that the welder can make an acceptable weld. Due to the recent high failure rate and high cost of having the coupons x-rayed we would like to start using guided bend tests to ensure the welders are able to make satisfactory welds.
1/2" diameter WPQ qualified with Volumetric NDE
WPQ qualified with volumetric NDE, welder produced 3qty. 1/2" schedule 80 coupons meeting the 6" (QW-302.2)section IX requirement in the 6G position utilizing GTAW out. My question specifically is in regards to QW-452.1(b)Note(2)which states:
Carbon Equivalence Formula
Lab tests were conducted on weld coupons to correlate the application of preheat with base metal composition to susceptibility of crack initiation and propagation in the base metal HAZ. So, depending on the melting practices used for the steel, the carbon equivalent formula can be tweaked to provide a better fit with lab data for a particular
Hardness testing on existing PQR
15 Oct 07 10:05. Hello All, I am currently on a project that the customer wants hardness testing done on existing PQR's. I have duplicated one of the original test coupons for a PQR, but I am having a hard time finding SA-285 Gr. C 3/8" thick for the second coupon, which was the original material and thickness used for approval.
SS 316L Clad A516 Gr70 Plate
2. Production Coupons: 2.1 If the vessel requires no PWHT, the test coupons are only required to be tested to similar requirements as per the PQR? 2.2 If PWHT is required, the production coupons need to be PWHT along with the vessel and then tested according to PQR + to ASTM 262 Practise E? B) 316L SS Weld Overlay on CS A516 Gr 70
ASME/ANSI B 31.3 ASTM A WPL 6 on Pressure Piping
The purchaser must specify in its P.O. to the manufacturer/supplier that the added heat treatments (for PWHT) are required for mechanical testing. Only the mechanical test specimens (coupons) are subject to the additional heat treatment; the fittings, as supplied by the manufacturer, are not subject to the additional heat treatment.
impact test joule value for sub size specimen
2) Test coupon is 12.7 mm, API 5L X60, 3) Gtaw & Smaw Process. 4) SMAW Size for impact test is 10x10x55. 5) Gtaw size for impact test is 2.5x10x55. 6) Both are done using -28 test temperatue. 7) requirement shall be minimum of 32 J per specimen. 8) SMAW SPECIMEN passed for HAZ & WELD METAL. above 32 J. 9) GTAW SPECIMEN is below 32J.
Bolt Hole Repair Coupon
Bolt Hole Repair Coupon. MrGezus (Petroleum) (OP) 22 May 15 18:21. Hello all. Thank you in advance for any information that you can share. Every so often our facility needs to repair a bolt hole that was drilled in the wrong place. In the past we have qualified welding procedures to take corrective action. However the welder qualification is
2) Wall thickness. there is a rescriction on max deposited weld metal for welder qualification (ref, QW.452.1) qualify with 1/4 inch wall thickness. 3) you have to qualify welder with 2 inch pipe with 1/4 inch wall thickness. this will satisfy your requirement. RE: Welder Qualification.
Accelerated Corrosion Test GM9540P, Coupon Mass Target
Accelerated Corrosion Test GM9540P, Coupon Mass Target Loss. PTCollins (Automotive) (OP) 11 Jun 02 12:22. I was just wondering if anyone has a complete data set for the target mass loss for the coupons in GM9540P. The table is incomplete and calculating the target losses from the end of test mass loss seems a bit confusing to me.
D1.1 PQR RT/UT Test Requirements
Background: The code in question is AWS D1.1:2015. There have been no exceptions or deviations of any sort granted by the EOR. This is a production weldment, using a combination of listed and unlisted materials. The weld shop will be using several pre-qualified GMAW WPS’s. They will also be using GMAW WPS’s qualified by PQR, as well as GMAW
Hydrogen Control in SMAW
2. A repair organization has a WPS which states it is qualified for P-8 to P-8 material welded with either E308, E308L, E309, E316 Electrodes (SMAW process). The PQR this WPS, states the weld test coupons were. SA-240 type 304L meterials, welded with E308 electrodes, Is the WPS properly qualified for the base material listed? a. Yes b. No c.
WPS vs. PQR
The WPS must be backed up by the PQR (s) PQR can be welded on any form of material Plate or pipe as long as testing coupons can be cut. Our plates are 5" x 12". PQRs can be welded in any position, Flat (1G)is popular. If the process and electrodes support welding in all positions then state so on the resulting WPS.
ASME Sec IX welder qualification
ASME Sec IX welder qualification. I plan on testing the welders on a 12" pc of plate. There will be approx. 3.5 inches of each position. No where in the code can I find how much length of each position is required if the NDE method is volumetric. I see in QW-302.2 that 6 in (150mm) is required per process, but not position.
ASME Weld Procedure using non-asme material
If you want a formula to determine the actual die post diameter you need for materials with 3% to less than 20% elongation, use the following. It's just the formula from note 1 of QW-466.1 reworked to solve for die post diameter. DP = 100x (t/e)-t. DP …