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PDI
Alternative ASME Calibration Blocks
PDI Alternative
ASME blocks are manufactured in accordance with the
requirements of the Performance Demonstration
Initiative (PDI) Procedure No. PDI-UT-1, Rev. C,
Fig. 4 (Ferritic) and PDI-UT-2, Rev. C, Fig. 4
(Austenitic).
These cover the
generic procedures for the ultrasonic examination of
both ferritic and austenitic pipe welds. The blocks
offer an economical alternative to fabricating
multiple curved calibration blocks (pipe sections)
in numerous diameters and wall thicknesses.
The blocks are
normally supplied in sets of 3 individual blocks.
Materials for each blocks are A516 Grade 70 Steel,
304/304L Stainless Steel, and 316/316L Stainless
Steel. Individual blocks of any one alloy are also
available.
Overall block
dimensions are 2.000" wide x 2.250" tall x
10.000" long. block design consists of steps
simulating wall thicknesses measuring 0.500",
1.000", 1.500" and 2.000". Each step
contains a .010" wide EDM notch machined across
the width of the step at a depth of 10% of wall
thickness. Scanning surfaces and reflecting surfaces
are machined to simulate pipe and plate surfaces of
250 Ra max. finish. Each block is machine-engraved
on one side with the Block description, Serial No.,
Alloy, and Heat No. All blocks are made from
ultrasonically inspected, heat number traceable
materials.
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API
RP 2X Reference Standards
Set of 4 blocks
used for Level C Examination of offshore structural
fabrication.
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DSC
Test Block
PER: AWS &
ASTEM-E-164
Shearwave Distance
& Sensitivity Calibration.
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DS
Test Block
PER: ANSI &
AWS
Distance &
Sensitivity.
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DC
Test Block
PER: AWS &
ASTM-E-164
Distance
Calibration (Shearwave).
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Angle
Beam Test Block
PER: ASTM-E-164
& USAF T.O. 33B-1-1 (6-1-84)
Angle Beam
Calibration.
Metric versions
are available. They are made in accordance with BS
2704; Din 54122.
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AWS
Resolution Block
PER: AWS & BPR
Checking
resolution capabilities of angle beam transducers.
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SC
Sensitivity Reference Block
PER: AWS &
ASTM-E-164
Sensitivity
Calibration (Shearwave).
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IIW
Type 1
PER: International
Institute of Welding (IIW) ASTM-E-164 &
MIL-STD-2154
Beam Index; Angle
Determination; Transverse Wave Distance &
Sensitivity; Longitudinal Wave Distance Calibration;
Depth Resolution; Sensitivity.
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IIW
Type 2
PER: IIW &
USAF T.O. 33B-1-1 (6-1-84)
Modified version
of Type 1 with a 2" radius 1/4" deep
cutout test side for time based distance calibration
and three extra side drilled holes which permit
sensitivity level setting.
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IIW
V-1 (METRIC)
PER: BS-2704
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Mini
IIW
Miniature version
of IIW blocks resembling the Type 2.
Geometry:
1"x2"x6". Contains 1" diameter
hole, 2" radius 1/4" deep cutout test
side, 3 side drilled holes, and a 3/4" sq. x
.100" deep cutout.
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ASME
Basic Calibration Block
PER: ASME SEC V
Articles 4 Fig. T-434.2.1; Article 5 Fig. T-534.2.1
(Previously designated Fig. T-542.2.1. Article 5 was
revised in its entirety in October 2002).
Application: Angle
Beam Calibration.
Geometry:
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Material Thickness
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Block Dimensions
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| 1" or
less |
.750"
x 6" x 7" |
| Over
1" through 2" |
1.50"
x 6" x 10" |
| Over
2" through 4" |
3.00"
x 6" x 12" |
| Contains
2 slots: one on each face, and three side
drilled holes 1.5" deep. Diameter of
holes is determined by block thickness. |
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ASME
Basic Calibration Blocks for Pipe
PER: ASME SEC V
Article 4 Fig. T-434.3.
The basic
calibration block fabricated for customer supplied
section of pipe of the same diameter, schedule, heat
treatment and material type as the material being
examined. Contains 4 nothces: longitudinal, and
circumferential on both OD and ID at a depth of 10%
of the wall thickness. Notches are 1/4" max.
wide x 1" min. long. Block is fabricated in
accordance with ASME SEC. V article 4 Fig. 434.3.
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ASME-N-625
Reference Plate
PER: ASME Boiler
and Pressure Vessel Code SEC. III for longitudinal
shear & surface wave.
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30
FBH Resolution Block
PER: ASTM-E-127
& ASTM-E-428.
Area / amplitude
plots for normal beam transducer.
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NAVSHIPS
Test Block
PER: NAVSEA T
9074-AS-GIB-010/271.
Distance
correction & sensitivity levels.
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Custom
Step Pipe Segment
RCM can
manufacture step pipe segments per customer
specification. Customer to supply material and
specifications.
Specify whether
steps are to be Machined on ID or OD:
A) ID or OD Dimensions
B) Number of Steps & Step Thicknesses
C) Step Length
D) ARC Segment Width
E) Overall Length
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Boeing
Angle Beam Block
P.S. 21211, Fig. 4
Application: Angle
Beam Examination
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Material Thickness
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T
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L
MIN. (inches) |
| Up to and
including 1" |
3/4"
or t |
(3T Tan
0+1) |
| Over
1" to 2" |
1.5"
or t |
(3T Tan
0+1) |
| Over
2" to 4" |
3" or
t |
(3T Tan
0+1) |
| Over
4" to 6" |
5" or
t |
(3T Tan
0+1) |
| Over
6" |
t +/-
1" |
(3T Tan
0+1) |
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IOW
Beam Profile Block
PER: BS 2704
(British Standards).
Beam profile of
angle beam transducer.
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Step
Blocks
PER: ASTM-E-797.
Thickness &
lineary calibration.
We can manufacture
any number of step blocks for special applications.
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Mini
Resolution Block
To check
resolution capabilities.
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ASTM-A-609
Standard practice
for UT Examination for castings, carbon, low alloy
and martensitic stainless steels.
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ASTM-E-317
FIG. 1: Suggested
test block for Horizontal and Vertical Linearity
& FIG 6: Suggested configuration for Resolution
Test Block.
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ASTM-E-127
or ASTM-E-428
A set
of calibration blocks all with the same hole size
and a series of metal travels ranging from
.062" to 5.75".
A set of calibration blocks using the attributes of
8 & 19 piece sets. This set contains blocks used
for distance amplitude as well as area amplitude.
A set of calibration blocks all the same length and
having a series of hole diameters ranging from
1/64" to 8/64". |
All raw material
is ultrasonic-inspected and certified prior to
manufacture of blocks.
Many materials
other than the standard materials listed before are
kept on the shelf and are available for immediate
fabrication to customer specifications. All blocks
are available in metric dimensions.
Blocks are
precision manufactured to tolerances well within the
allowable limits of their respective codes. All
blocks pass a comprehensive quality control
inspection in accordance with ISO 9002 (formerly MIL
I 45208 A), with instruments calibrated in
accordance with ANSI/NCSL Z540 (formerly MIL C
45662A). All calibration blocks are serialized and
certified to the National Institute of Standards and
Technology.
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