ASME SEC VIII D1 C PT UCS-2004

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UCS-7
PART UCS — CARBON AND LOW ALLOY STEEL VESSELS
UCS-16
allowable stress values at different temperatures are given in Table 1A of Section II, Part D (see UG-6).
SUBSECTION C REQUIREMENTS PERTAINING TO CLASSES OF MATERIALS
PART UCS REQUIREMENTS FOR PRESSURE VESSELS
CONSTRUCTED OF CARBON AND LOW ALLOY STEELS1
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(1) The vessels are not used to contain lethal substances, either liquid or gaseous.
(2) The material is not used in the construction of unfired steam boilers [see U-1(g)].
SA-737 SA-738 SA-739
SA-423 1, 2
SA-765
SA-437 SA-449 SA-455 SA-487
B4B, B4C ... ... 1 Cl. A & B, 2 Cl. A & B, 4
Cl. A, 8 Cl. A
SA-832 SA-836 SA-1008 SA/AS 1548
SA-214 SA-216 SA-217
SA-225 SA-234
SA-250 SA-266 SA-283 SA-285 SA-299
Type/Grade ...
E/A, E/B, S/A, S/B
... A, B, C
A, B
A, C ...
... FR, F1, F2, F3V, F5,
F5a, F9, F11 Cl. 1 & 2, F12 Cl. 1 & 2, F21, F22 Cl. 1 & 3, F22V, F91
UCS-7 STEEL FORGINGS
Approved specifications for forgings of carbon and low alloy steel are given in Table UCS-23. A tabulation of
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SA-508 SA-515
1, 1A, 2 Cl. 1, 2 Cl. 2, 3 Cl. 1, 3 Cl. 2, 3V, 4N Cl. 3, 22 Cl. 3
60, 65, 70
SA/CSA-G40.21
SA/EN 10028-2 SA/EN 10028-3
Type/Grade 55, 60, 65, 70
...
CS-A, CS-B
7-430, 7-460, 7-490
38W
P295GH P275NH
GENERAL NOTE: Maximum allowable stress values in tension for the materials listed in the above table are contained in Subpart 1 of Section II, Part D (see UG-23).
TABLE UCS-23 CARBON AND LOW ALLOY STEEL
Spec. No.
Type/Grade
Spec. No.
SA-302 A, B, C, D
SA-516
SA-307 B
SA-524
SA-320 L7, L7A, L7M, L43
SA-533
SA-325 SA-333 SA-334 SA-335
LF1, LF2, LF3, LF5, LF9
LCB, LC1, LC2, LC3 BC, BD
FP1, FP2, FP5, FP9, FP11, FP12, FP21, FP22
A, B, C, D, E Cl.65 & 70, F Cl. 70, G Cl.70, H Cl.70, J Cl.65, 70, & 110, L, M Cl. A & B
... B5, B7, B7M, B16
A, B A, B, D, E, F A, B, C T1, T1a, T1b A-1, C
T2, T5, T5b, T5c, T9, T11, T12, T17, T21, T22, T91
... WCA, WCB, WCC C12, C5, WC1, WC4,
SA-336
SA-350 SA-352 SA-354 SA-369
SA-372
1
1, 3, 4, 6, 7, 9 1, 3, 6, 7, 9 P1, P2, P5, P5b, P5c, P9,
P11, P12, P15, P21, P22, P91 F1, F3V, F5, F5A, F9, F11 Cl. 2 & 3, F12, F21 Cl.1 & 3, F22 Cl. 1 & 3, F22V, F91
(3) With the exception of flanges, flat bolted covers, and stiffening rings, the thickness of plates on which strength welding is applied does not exceed 5⁄8 in. (16 mm).
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Not for Resale
A2, B2, C2 A2, B2, C2
...
4037, 4042, 4140, 4340, 5137M, 51B37M
...
...
A, B, C
45, 50, 55, 60, 65, 70
B/35, B/40
...
B, C A, B, C B11, B22
I, II, III, IV
21V, 22V
SA-537 SA-540 SA-541
SA-542 SA-556 SA-557 SA-562 SA-574
SA-587 SA-612 SA-662 SA-675 SA-695
SA-387 2, 5, 11, 12, 21, 22, 91
SA-727
SA-414 SA-420
A, B, C, D, E, F, G WPL 3, WPL 6, WPL 9
(b) Carbon or low alloy steel having a carbon content of more than 0.35% by heat analysis shall not be used in welded construction or be shaped by oxygen cutting (except as provided elsewhere in this Division).
1 Low alloy stee Table UCS-23.
(c) Small parts used under the provisions of UG-11(a)(2) in welded construction shall be of good weldable quality.
GENERAL
UCS-1 SCOPE
The rules in Part UCS are applicable to pressure vessels and vessel parts that are constructed of carbon and low alloy steels and shall be used in conjunction with the general requirements in Subsection A, and with the specific requirements in Subsection B that pertain to the method of fabrication used.
I, II
A Cl. 1 & 2, B Cl. 1 & 2, C Cl. 1 & 2, D Cl. 2
Cl.1, 2, & 3 B21, B22, B23, B24, B24V
1, 1A, 2 Cl. 1, 2 Cl. 2, 3 Cl. 1, 3 Cl. 2, 3V, 22 Cl. 3, 22V
B Cl. 4, C Cl. 4a, D Cl. 4a
UCS-8 STEEL CASTINGS
Approved specifications for castings of carbon and low alloy steel are given in Table UCS-23. A tabulation of allowable stress values at different temperatures are given in Table 1A of Section II, Part D. These stress values are to be multiplied by the casting quality factors of UG-24. Castings that are to be welded shall be of weldable grade.