Common materials inspection and markings inspection
Table of Contents
ASME A-106/A-106M
Markings verification
- ASME SA-106/SA-106M-2019 – Production Marking – Section 25
- ASME SA-530/SA-530M-2019 – production Marking – Section 24
(sample markings)
Each length of pipe shall be legibly marked with (eg.)
- The manufacturer’s name or brand: BCK.
- The specification number: ASME SA-106/SA-106M.
- Grade: B.
- Heat number: 3-35727.
- ASME SA-106/SA-106M – Table 4: NDE/2500 PSI.
- The length: 6000 MM.
- The OD: NPS 3″.
- The Schedule: SCH XXS.
- The weight: not applicable for NPS 3″.
- Supplementary: not applicable.
Note:
- This material do not cover welded pipe, see Section 1.1 of ASME SA-106/SA-106B.
- NPS 4″ and larger shall marked weight class.
- Production analysis shall be made on the representative two pipes from each lot, see Section 9.1 of ASME SA-106/SA-106M.
Dimensional and visual inspection
- Forming/dimension/masses: ASME B36.10M – 2018; ASME SA-530/SA-530M – Table X1
- Tolerance: ASMESA-530/SA-530M – Section 7, 8, 9, 10, 11, 12 – Table 1, 2, 3
Transfer markings
Guide to transfer markings information to a shorter length:
- Step 1: Verify MTC and pipe section are matched, dimensional / visual inspection for each pipe.
- Step 2: Transfer original markings to cut off length (unmarked cut length) by paint marker
- Step 3: Stamp “processor’s name or trademark, brand (for resale) on both pipe segment.
- Step 4: Shot photo of the original markings and new transfer identification for preparing a report, photo report should minimum show all production markings, processor’s identification, buyer name, date, signature, … and attachment the MTC.
- Step 5: Cut the shorter length for resale by processor.
Coded markings
- Coded marking: Pxxxx – Pipe.
- Die stamp may be stamped on the thickness with T>= 6mm for carbon steel and T>= 12 mm for stainless steel unless otherwise by supplementary requirements.
- Piping process fabrication may not required die stamp on the off-cut length.
End beveling preparations
- Accordance with the approved WPS.
- ASME B16.25 2017 – Fig. 1 through Fig. 6.
Storage pipe material
- Keep pipe material in dry area, keep away wet condition.
- All end pipes shall be protected by plastic covers.
ASME A-516/A-516M
Markings verification
- ASME SA-20/SA-20M-2019 – Production Marking – Section 13
Plate shall be legibly marked with (eg.):
- The specification number: SA-516.
- The manufacturer’s name or brand: BCK.
- Grade: GR.70N.
- Heat number: 3-5642.
- Plate identifier: 111-1.
- Heat treatment: MT.
- Additional: length, client, dimension, …
Code marking
- Code marking: Txxxx – Plate.
- Die stamp may be stamped on the thickness with T>= 6mm for carbon steel and T>= 12 mm for stainless steel unless otherwise by supplementary requirements.
Dimensional and visual inspection
- Dimension/masses: ASME SA-20/20M – 2019 Section 14.
Transfer markings
Guide to transfer markings information to the off-cut pieces:
- Step 1: Verify MTC and original markings are matched, dimensional / visual inspection for each plate.
- Step 2: Transfer the original markings to the off-cut pieces (unmarked cut pieces) by paint marker
- Step 3: Stamp “processor’s name or trademark, brand (for resale) on both pieces, see Section 13.4 of SA-20/SA-20M.
- Step 4: Shot photo of the original markings and new transfer identification for preparing a report, photo report should minimum show all production markings, processor’s identification, buyer name, date, signature, … and attachment the MTC.
- Step 5: Cut the plates into aspect size for resale by processor.
ASME B16.5
- Dimensional inspection: ASME B16.5 2017 – Section 6.
- Tolerance: ASME B16.5 2017 – Section 7.
ASME B16.9
- Dimensional inspection: ASME B16.9 2018 – Section 6 and Table 6.1.
- Tolerance: ASME B16.9 2018 – Section 11 and Table 11-1.
ASME B16.11
- Dimensional inspection: ASME B16.11 2016 – Section 6.
- Tolerance: ASME B16.11 2016 – Section 7.
Bolting & gasket
ASME SA-193/SA-193M – 2019
- Marking SA-193/SA-193M – Section 15 and ASME SA-962/SA-962M Section 20.3; 20.8.
ASME SA-194/SA-194M – 2019
- Marking SA-194/SA-194M – Section 13 and ASME SA-962/SA-962M Section 20.4; 20.8.
ASME SA-307 – 2019
- Marking SA-307 – Section 13.
ASME SA-325 – 2019
- Marking SA-325 – Section 15.
ASME SA-563 – 2019
- Marking SA-563 – Section 14.
ASME B16.20 – 2017 Gasket RJ
- Marking ASME B16.20 2017 – Section RJ-4 and Table RJ-4.
- Dimensional inspection: ASME B16.20 2017 – Section RJ-5 and Table RJ-5.
- Identification number: ASME B16.20 2017 – Section RJ-7 and Table RJ-5.
ASME B16.20 – 2017 Gasket SW
- Marking ASME B16.20 2017 – Section SW-4 and Table SW-4.1.
- Dimensional inspection: ASME B16.20 2017 – Section SW-2 and Table SW-2.1.
- Color coding: ASME B16.20 2017 – Section SW-4.3 and Table SW-3-1.
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