CC-2524.4 Nominal Diameter,

in. (mm) Lateral Expansion, mils (mm) Absorbed Energy, ft‐lb (J) 1 (25) or less No test required No test required Over 1 (25) through 4 (100) 25 (0.64) No requirements

Over 4 (100) 25 (0.64) 45 (61)

Table CC-2524.3(b)-1

Required CvValues for Bolting Material

Tested in Accordance WithCC-2524.3(b)and

CC-2524.4 Nominal Diameter, in. (mm) Lateral Expansion, mils (mm) Absorbed Energy, ft‐lb (J) 1 (25) or less No test required No test required Over 1 (25) through 4 (100) 15 (0.38) 30 (41)

Over 4 (100) 20 (0.50) 35 (48)

Table CC-2524.4-1

Required CvEnergy Values for Liner Material

for the Overpressure Test

Nominal Wall Thickness, in. (mm)

Energy, ft‐lb (J), for Base Materials of Specified Minimum Tensile Strength,

ksi (MPa)[Note (1)]

60 ksi (420 MPa) or Below Over 60 ksi (420 MPa) Average of 3 Lowest 1 of 3 Average of 3 Lowest 1 of 3 5 /8(16) or less[Note (2)] … … … … Over5_/ 8(16) 15 (20) 10 (14) 20 (27) 15 (20) GENERAL NOTE: Where weld metal tests ofCC-2600are made to these requirements, the impact energy shall conform to the require- ments of either of the base materials being joined.

NOTES:

(1) Where two base materials having different required energy val- ues are joined, the weld metal impact energy requirements of the procedure qualification tests ofCC-4533shall conform to the requirements of either of the base materials.

the specimens taken from the weld area shall also be made on each lot. A lot shall be defined as stated in the applicable material specification, but in no case shall a lot consist of products from more than one heat of mate- rial and of more than one diameter, with the nominal thickness of any product included not exceeding that to be impact tested by more than1/4in. (6 mm). Such a lot

shall be in a single heat treatment load or in the same con- tinuous run in a continuous‐type furnace controlled with- in a 50°F (28°C) range and equipped with recording pyrometers.

CC-2525.4 Bolting Material. One test shall be made

for each lot of material where a lot is defined as one heat of material heat treated in one charge or as one continu- ous operation, not to exceed the following:

Diameter, in (mm) Weight, lb (kg) 13_/ 4(44) and less 1,500 (700) Over 13_/ 4to 21/2(44 to 64) 3,000 (1 400) Over 21/2to 5 (64 to 125) 6,000 (2 700) Over 5 (125) 10,000 (4 500)

CC-2525.5 Bars and Rolled Shapes.

(a) One test shall be made for each lot of bars with a

cross‐sectional area greater than 1 in.2(650 mm2) where a lot is defined as one heat of material heat treated in one charge or as one continuous operation, not to exceed 6,000 lb (2 700 kg).

(b) For rolled shapes, the frequency of testing shall be

one test (a set of three specimens) for at least each 15 tons (14 000 kg) or each single length of 15 tons (14 000 kg) or more, of the same nominal shape size, ex- cluding length, for each heat in the as‐rolled condition. If the shapes are heat treated, one test shall be taken from each heat of each nominal shape size, excluding length, in each furnace lot. For shapes heat treated in a continu- ous furnace, a lot shall not exceed 15 tons (14 000 kg).

CC-2526 Test Coupon Heat Treatment for

Ferritic Material7

Where ferritic steel material is subject to heat treat- ment during fabrication or installation of a liner, the ma- terial used for the tensile and impact test specimens shall be heat treated in the same manner as the liner, except that test coupons and specimens for P‐No. 1 materials with a nominal thickness of 2 in. (50 mm) or less are not required to be so heat treated. The Fabricator shall provide the Material Manufacturer with the temperature and heating and cooling rates to be used. In the case of postweld heat treatment, the total time at temperature or temperatures for the test material shall be at least 80% of the total time at temperature or temperatures during actual postweld heat treatment of the material, and the total time at temperature or temperatures for the test material may be performed in a single cycle.

CC-2527 Retests

CC-2527.1 Retests for Material Other Than Bolting.

(a) For Charpy V‐notch tests required byCC-2524, one retest at the same temperature may be conducted provided

(1) the average value of the test results meets the

average of three requirements specified in Table CC-2524.2-1,Table CC-2524.2-2, orTable CC-2524.4-1, as applicable

(2) not more than one specimen per test is below the

lowest one of three requirements specified in Table CC-2524.2-1,Table CC-2524.2-2, orTable CC-2524.4-1, as applicable

(3) the specimen not meeting the requirements is not

lower than 5 ft‐lb (7 J) or 5 mils (0.13 mm) below the low- est one of three requirements specified in Table CC-2524.2-1,Table CC-2524.2-2, orTable CC-2524.4-1, as applicable

(b) A retest consists of two additional specimens taken

as near as practicable to the failed specimens. For accep- tance of the retests, both specimens shall be equal to or greater than the average of three requirements specified in Table CC-2524.2-1, Table CC-2524.2-2, or Table CC-2524.4-1, as applicable.

CC-2527.2 Retests for Bolting Material.

(a) For Charpy V‐notch tests required byCC-2524, one retest at the same temperature may be conducted provided

(1) not more than one specimen per test is below the

acceptance requirements

(2) the specimen not meeting the acceptance re-

quirements is not lower than 5 ft‐lb (7J) or 5 mils (0.13 mm) below the acceptance requirements

(b) A retest consists of two additional specimens taken

as near as practicable to the failed specimens. For accep- tance of the retests, both specimens shall meet the speci- fied acceptance requirements.

CC-2528 Calibration of Instruments and

Equipment

Calibration of temperature instruments and Charpy V‐notch impact test machines used in impact testing shall be performed at the following frequency:

(a) Temperature instruments used to control test tem-

perature of specimens shall be calibrated and the results recorded to meet the requirements of NCA‐3858.2 at least once in each 3‐month interval.

(b) Charpy V‐notch impact test machines shall be cali-

brated and the results recorded to meet the requirements of NCA‐3858.2. The calibrations shall be performed using the frequency and methods outlined in ASTM E23 and employing standard specimens obtained from the Na- tional Institute of Standards and Technology, or any sup- plier of subcontracted calibration services accredited in accordance with the requirements of NCA‐3126 and NCA‐3855.3(c).

CC-2530 EXAMINATION AND REPAIR OF LINER