ISO 898-1:2013 actually calls for a V notch Charpy test to be carried out at -20 deg c, not at -40 deg c as per table 3. there is an issue whereby the table reference the requirement as 27J, however there is no reference to this being an average minimum nor to the requirement that no single...
if you are not too fussy with the source
http://www.chinasteelsuppliers.com/High-alloy/mar-m-246.html
otherwise Zwick / Roell do use this material for their pull rods
alternatively we use nimonic 105 for stress rupture pull bars which works well, if you can get some of course
Within the above standard the Charpy Impact requirement is listed as min 27 j, however there is nothing to indicate whether this is a single minimum requirement or an average minimum requirement.
I have checked through BS 5S100 which is referenced(and BS 6S100 just in case)but I cannot locate...
Hi Redpicker.
APi 6A does indeed have drawings representing the areas in question.
I am seeking to clarify the 1/4T envelope location. In API 6A 5.6.4.1 it states that the test specimens shall be removed from the TC such that their longitudinal axis is wholly within the centre core 1/4T...
What process was the 410 Stainless produced by?
Is this a repeating occurrence or a singular one?
If singular it is possible the difference can be attributed to the presence of intergranular carbides, in the notched area which is very difficult to determine prior to testing but can be assessed...
Regarding Test locations for Tensile Test sample extraction.
ASTM A370 indicates Testing at 1/4T
API6A indicates testing within the 1/4T envelope.
Can any direct me to a definitive explanation of the 1/4T envelope , preferably with drawings.
Is there any criteria that depicts where the 1/4T...
Many thanks for the responses
my only concern is that the clause 5.2.4 clearly states the resolution of the machine is to be used , rounded to E29
the Note related to this clause does reference the rounding to whole number for acceptance testing , we as a commercial test house do not do...
Rockwell Hardness Testing to ASTM E18 :2014
Clause 5.2.4 states:
Rockwell hardness measurements shall be rounded in accordance with Practice E29 with a resolution no greater than the hardness values display of the testing machine.
we have recently upgraded our machine and the display resolution...
Within the above standard the Izod Impact requirement is listed as >/= 20 ft lbs, however there is nothing to indicate whether this is a single minimum requirement or an average minimum requirement.
I have checked through BS 5S100 which is referenced(and BS 6S100 just in case)but I cannot...
Can Anyone advise a supplier of a suitable water bath for use in testing to ASTM G48 pitting corrosion tests. the one currently in use need replacing , however no one seems to supply polypropylene lined baths any more. Currently we use Grant JB series JB2
Direct verification of hardness Brinell Machines.
During a recent Audit it was brought up that the direct verification for the brinell machine wass only verified to BS EN ISO 6506-2. We do not hold a verification report for ASTM E10. can anyone advise if this is required or is there a clause in...
Can anyone advise on the following:
When testing charpy impact tests to BS EN ISO 148-1 what is th acceptance criteria regarding values obtained that are below the average?
ASTM E23 state that when a min average is required the results must be no more than One result < the specified average and...
Hi all
When machining Round tensiles to ASTM A370 Fig 5 specimen 4 is the metric 12.5mm size a standalone size and NOT a conversion from the imperial 0.500" quoted.
what is the reason for this not being 12.70mm ?
L.E.B1
Hi all
Can anyone enlighten me on the tensile test retest criteria in ASTM A370 and any specifica references.
I am under the impression that once a tensile has failed, a double retest can be performed. If either of the retests fail the material is then considered failed and the only option...
