ASME SA240(英文)压力容器用耐热铬及铬镍不锈钢板、薄板和钢带

ASME B&PVC sec2a$u160 06-04-99 09:08:07 pd: sec2a Rev 14.04 SPECIFICATION FOR HEAT-RESISTING CHROMIUM AND CHROMIUM-NICKEL STAINLESS STEEL PLATE, SHEET, AND STRIP FOR PRESSURE VESSELS SA-240 (Identical with ASTM Specification A 240-97a, except for editorial differences in Table 1.) 1. Scope 1.1 This specification covers chromium, chromium- nickel, and chromium-manganese-nickel stainless and heat-resisting steel plate, sheet, and strip for pressure vessels. 1.2 Some steels covered by this specification, espe- cially the chromium steels, because of their particular alloy content and specialized properties, may require special care in their fabrication and welding. Specific procedures are of fundamental importance, and it is presupposed that all parameters will be in accordance with approved methods capable of producing the desired properties in the finished fabrication. 1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.4 This specification and the applicable material specifications are expressed in both inch-pound and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished in inch-pound units. 363 2. Referenced Documents 2.1 ASTM Standards: A 370 Test Methods and Definitions for Mechanical Test- ing of Steel Products A 480/A 480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip E 112 Test Methods for Determining Average Grain Size E 527 Practice for Numbering Metals and Alloys (UNS) 2.2 SAE Standard: J 1086 Practice for Numbering Metals and Alloys (UNS) 3. General Requirements 3.1 The following requirements for orders for material furnished under this specification shall conform to the applicable requirements of the current edition of Specification A 480/A 480M. 3.1.1 Definitions, 3.1.2 General requirements for delivery, 3.1.3 Ordering information, 3.1.4 Process, 3.1.5 Special tests, 3.1.6 Heat treatment, 3.1.7 Dimensions and permissible variations, 3.1.8 Workmanship, finish and appearance, A99 ASME B&PVC sec2a$u160 06-04-99 09:08:07 pd: sec2a Rev 14.04 SA-240 1998 SECTION II 3.1.9 Number of tests/test methods, 3.1.10 Specimen preparation, 3.1.11 Retreatment, 3.1.12 Inspection, 3.1.13 Rejection and rehearing, 3.1.14 Material test report, 3.1.15 Certification, and 3.1.16 Packaging, marking, and loading. 4. Chemical Composition 4.1 The steel shall conform to the requirements as to chemical composition specified in Table 1, and shall conform to applicable requirements specified in Specification A 480/A 480M. 5. Mechanical Properties 5.1 The material shall conform to the mechanical properties specified in Table 2. 6. Grain Size for Austenitic H TypesA99 6.1 The austenitic H Types shall conform to an average grain size of ASTM No. 7 or coarser as measured by Test Methods E 112. 364 ASME B&PVC sec2a$u160 06-04-99 09:08:07 pd: sec2a Rev 14.04 PART A — FERROUS MATERIAL SPECIFICATIONS SA-240 TA B LE 1 A 99 CH E M IC A L CO M P OS IT IO N R E QU IR E M E N TS ,% A U N S P ho s- D es ig na tio nB Ty pe C Ca rb on D M an ga ne se ph or us Su lfu r Si lic on Ch ro m iu m N ic ke l M ol yb de nu m N itr og en Co pp er Ot he r E le m en ts E, F A us te ni tic (C hr om iu m -N ic ke l) (C hr om iu m -M an ga ne se -N ic ke l) N 08 36 7 .. . 0. 03 0 2. 00 0. 04 0 0. 03 0 1. 00 20 .0 0– 22 .0 0 23 .5 0– 25 .5 0 6. 00 –7 .0 0 0. 18 –0 .2 5 0. 75 .. . N 08 80 0 .. . 0. 10 1. 50 0. 04 5 0. 01 5 1. 00 19 .0 –2 3. 0 30 .0 –3 5. 0 .. . .. . 0. 75 A l 0. 15 –0 .6 0 T i 0. 15 –0 .6 0 N 08 81 0 .. . 0. 05 –0 .1 0 1. 50 0. 04 5 0. 01 5 1. 00 19 .0 –2 3. 0 30 .0 –3 5. 0 .. . .. . 0. 75 A l 0. 15 –0 .6 0 T i 0. 15 –0 .6 0 N 08 90 4 90 4L G 0. 02 0 2. 00 0. 04 5 0. 03 5 1. 00 19 .0 0– 23 .0 0 23 .0 0– 28 .0 0 4. 0– 5. 0 0. 10 1. 0– 2. 0 .. . N 08 92 6 .. . 0. 02 0 2. 00 0. 03 0 0. 01 0 0. 50 19 .0 0– 21 .0 0 24 .0 0– 26 .0 0 6. 0– 7. 0 0. 15 –0 .2 5 0. 5– 1. 5 .. . S 20 10 0 20 1 0. 15 5. 50 –7 .5 0 0. 06 0 0. 03 0 1. 00 16 .0 0– 18 .0 0 3. 50 –5 .5 0 .. . 0. 25 .. . .. . S 20 10 3 .. . 0. 03 5. 50 –7 .5 0 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 3. 50 –5 .5 0 .. . 0. 25 .. . .. . S 20 15 3 .. . 0. 03 6. 40 –7 .5 0 0. 04 5 0. 01 5 0. 75 16 .0 0– 17 .5 0 4. 00 –5 .0 0 .. . 0. 10 –0 .2 5 1. 00 .. . S 20 16 1 .. . 0. 15 4. 00 –6 .0 0 0. 04 0 0. 04 0 3. 00 –4 .0 0 15 .0 0– 18 .0 0 4. 00 –6 .0 0 .. . 0. 08 –0 .2 0 .. . .. . S 20 20 0 20 2 0. 15 7. 50 –1 0. 0 0. 06 0 0. 03 0 1. 00 17 .0 0– 19 .0 0 4. 00 –6 .0 0 .. . 0. 25 .. . .. . S 20 40 0 .. . 0. 03 0 7. 00 –9 .0 0 0. 04 0 0. 03 0 1. 00 15 .0 0– 17 .0 0 1. 50 –3 .0 0 .. . 0. 15 –0 .3 0 .. . .. . S 20 91 0 X M -1 9H 0. 06 4. 00 –6 .0 0 0. 04 0 0. 03 0 0. 75 20 .5 0– 23 .5 0 11 .5 0– 13 .5 0 1. 50 –3 .0 0 0. 20 –0 .4 0 .. . C b 0. 10 –0 .3 0 V 0. 10 –0 .3 0 S 21 40 0 X M -3 1H 0. 12 14 .0 0– 16 .0 0 0. 04 5 0. 03 0 0. 30 –1 .0 0 17 .0 0– 18 .5 0 1. 00 .. . 0. 35 m in .. . .. . S 21 60 0 X M -1 7H 0. 08 7. 50 –9 .0 0 0. 04 5 0. 03 0 0. 75 17 .5 0– 22 .0 0 5. 00 –7 .0 0 2. 00 –3 .0 0 0. 25 –0 .5 0 .. . .. . S 21 60 3 X M -1 8H 0. 03 7. 50 –9 .0 0 0. 04 5 0. 03 0 0. 75 17 .5 0– 22 .0 0 5. 00 –7 .0 0 2. 00 –3 .0 0 0. 25 –0 .5 0 .. . .. . S 21 80 0 .. . 0. 10 7. 00 –9 .0 0 0. 06 0 0. 03 0 3. 50 –4 .5 0 16 .0 0– 18 .0 0 8. 00 –9 .0 0 .. . 0. 08 –0 .1 8 .. . .. . S 24 00 0 X M -2 9H 0. 08 11 .5 0– 14 .5 0 0. 06 0 0. 03 0 0. 75 17 .0 0– 19 .0 0 2. 25 –3 .7 5 .. . 0. 20 –0 .4 0 .. . .. . S 30 10 0 30 1 0. 15 2. 00 0. 04 5 0. 03 0 1. 00 16 .0 0– 18 .0 0 6. 00 –8 .0 0 .. . 0. 10 .. . .. . S 30 20 0 30 2 0. 15 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 8. 00 –1 0. 00 .. . 0. 10 .. . .. . S 30 40 0 30 4 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 8. 00 –1 0. 50 .. . 0. 10 .. . .. . S 30 40 3 30 4L 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 8. 00 –1 2. 00 .. . 0. 10 .. . .. . S 30 40 9 30 4H 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 8. 00 –1 0. 50 .. . .. . .. . .. . S 30 41 5 .. . 0. 04 –0 .0 6 0. 80 0. 04 5 0. 03 0 1. 00 –2 .0 0 18 .0 0– 19 .0 0 9. 00 –1 0. 00 .. . 0. 12 –0 .1 8 .. . C e 0. 03 –0 .0 8 S 30 45 1 30 4N 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 8. 00 –1 0. 50 .. . 0. 10 –0 .1 6 .. . .. . S 30 45 2 X M -2 1 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 8. 00 –1 0. 50 .. . 0. 16 –0 .3 0 .. . .. . S 30 45 3 30 4L N 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 8. 00 –1 2. 00 .. . 0. 10 –0 .1 6 .. . .. . S 30 50 0 30 5 0. 12 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 10 .5 0– 13 .0 0 .. . .. . .. . .. . S 30 60 0 .. . 0. 01 8 2. 00 0. 02 0 0. 02 0 3. 7– 4. 3 17 .0 –1 8. 5 14 .0 –1 5. 5 0. 20 .. . 0. 50 .. . S 30 60 1 .. . 0. 01 5 0. 50 –0 .8 0 0. 03 0 0. 01 3 5. 00 –5 .6 0 17 .0 0– 18 .0 0 17 .0 0– 18 .0 0 0. 20 0. 05 0 0. 35 .. . S 30 61 5 .. . 0. 16 –0 .2 4 2. 00 0. 03 0 0. 03 0 3. 2– 4. 0 17 .0 –1 9. 5 13 .5 –1 6. 0 .. . .. . A l 0. 8– 1. 5 S 30 81 5 .. . 0. 05 –0 .1 0 0. 80 0. 04 0 0. 03 0 1. 40 –2 .0 0 20 .0 0– 22 .0 0 10 .0 0– 12 .0 0 .. . 0. 14 –0 .2 0 .. . C e 0. 03 –0 .0 8 S 30 90 8 30 9S 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 22 .0 0– 24 .0 0 12 .0 0– 15 .0 0 .. . .. . .. . .. . S 30 90 9 30 9H G 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 22 .0 0– 24 .0 0 12 .0 0– 15 .0 0 .. . .. . .. . .. . S 30 94 0 30 9C bG 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 22 .0 0– 24 .0 0 12 .0 0– 16 .0 0 .. . .. . .. . C b 10 × C m in , 1. 10 m ax S 30 94 1 30 9H C bG 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 22 .0 0– 24 .0 0 12 .0 0– 16 .0 0 .. . .. . .. . C b 10 × C m in , 1. 10 m ax S 31 00 8 31 0S 0. 08 2. 00 0. 04 5 0. 03 0 1. 50 24 .0 0– 26 .0 0 19 .0 0– 22 .0 0 .. . .. . .. . .. . S 31 00 9 31 0H G 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 24 .0 0– 26 .0 0 19 .0 0– 22 .0 0 .. . .. . .. . .. . S 31 04 0 31 0C bG 0. 08 2. 00 0. 04 5 0. 03 0 1. 50 24 .0 0– 26 .0 0 19 .0 0– 22 .0 0 .. . .. . .. . C b 10 × C m in , 1. 10 m ax S 31 04 1 31 0H C bG 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 24 .0 0– 26 .0 0 19 .0 0– 22 .0 0 .. . .. . .. . C b 10 × C m in , 1. 10 m ax 365 ASME B&PVC sec2a$u160 06-04-99 09:08:07 pd: sec2a Rev 14.04 SA-240 1998 SECTION II TA BL E 1 (C ON T’ D) A 99 CH EM IC AL CO M PO SI TI ON RE QU IR EM EN TS ,% A U N S Ph os - De sig na tio nB Ty pe C Ca rb on D M an ga ne se ph or us Su lfu r Si lic on Ch ro m iu m N ic ke l M ol yb de nu m N itr og en Co pp er Ot he r El em en ts E, F Au st en iti c (C hr om iu m -N ic ke l) (C hr om iu m -M an ga ne se -N ic ke l) S3 10 50 31 0M oL N G 0. 03 0 2. 00 0. 03 0 0. 01 0 0. 50 24 .0 0– 26 .0 0 21 .0 0– 23 .0 0 2. 00 –3 .0 0 0. 10 –0 .1 6 .. . .. . S3 12 54 .. . 0. 02 0 1. 00 0. 03 0 0. 01 0 0. 80 19 .5 0– 20 .5 0 17 .5 0– 18 .5 0 6. 00 –6 .5 0 0. 18 –0 .2 2 0. 50 –1 .0 0 .. . S3 12 66 .. . 0. 03 0 2. 00 –4 .0 0 0. 03 5 0. 02 0 1. 00 23 .0 0– 25 .0 0 21 .0 0– 24 .0 0 5. 00 –7 .0 0 0. 35 –0 .6 0 0. 50 –3 .0 0 W 1. 00 –3 .0 0 S3 16 00 31 6 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 00 –3 .0 0 0. 10 .. . .. . S3 16 03 31 6L 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 00 –3 .0 0 0. 10 .. . .. . S3 16 09 31 6H 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 00 –3 .0 0 .. . .. . .. . S3 16 35 31 6T iG 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 0– 3. 0 0. 10 .. . Ti 5 × (C + N ) m in ,0 .7 0 m ax S3 16 40 31 6C bG 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 0– 3. 0 0. 10 .. . Cb 10 × C m in , 1. 10 m ax S3 16 51 31 6N 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 00 –3 .0 0 0. 10 –0 .1 6 .. . .. . S3 16 53 31 6L N 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 16 .0 0– 18 .0 0 10 .0 0– 14 .0 0 2. 00 –3 .0 0 0. 10 –0 .1 6 .. . .. . S3 17 00 31 7 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 11 .0 0– 15 .0 0 3. 00 –4 .0 0 0. 10 .. . .. . S3 17 03 31 7L 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 11 .0 0– 15 .0 0 3. 00 –4 .0 0 0. 10 .. . .. . S3 17 25 .. . 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 13 .5 0– 17 .5 0 4. 0– 5. 0 0. 20 .. . .. . S3 17 26 .. . 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 20 .0 0 13 .5 0– 17 .5 0 4. 0– 5. 0 0. 10 –0 .2 0 .. . .. . S3 17 53 31 7L N G 0. 03 0 2. 00 0. 04 5 0. 03 0 0. 75 18 .0 0– 20 .0 0 11 .0 0– 15 .0 0 3. 00 –4 .0 0 0. 10 –0 .2 2 .. . .. . S3 20 50 .. . 0. 03 0 1. 50 0. 03 5 0. 02 0 1. 00 22 .0 0– 24 .0 0 20 .0 0– 22 .0 0 6. 00 –6 .8 0 0. 24 –0 .3 4 0. 40 .. . S3 21 00 32 1 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 9. 00 –1 2. 00 .. . 0. 10 .. . Ti 5 × (C + N ) m in ,0 .7 0 m ax S3 21 09 32 1H 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 9. 00 –1 2. 00 .. . .. . .. . Ti 4 × (C + N ) m in ,0 .7 0 m ax S3 26 15 .. . 0. 07 2. 00 0. 04 5 0. 03 0 4. 8– 6. 0 16 .5 –1 9. 5 19 .0 –2 2. 0 0. 30 –1 .5 .. . 1. 5– 2. 5 .. . S3 26 54 .. . 0. 02 0 2. 00 –4 .0 0 0. 03 0 0. 00 5 0. 50 24 .0 0– 25 .0 0 21 .0 0– 23 .0 0 7. 00 –8 .0 0 0. 45 –0 .5 5 0. 30 –0 .6 0 .. . S3 32 28 .. . 0. 04 –0 .0 8 1. 00 0. 02 0 0. 01 5 0. 03 0 26 .0 –2 8. 0 31 .0 –3 3. 0 .. . .. . .. . Ce 0. 05 –0 .1 0 Cb 0. 6– 1. 0 A l0 .0 25 S3 45 65 .. . 0. 03 0 5. 00 –7 .0 0 0. 03 0 0. 01 0 1. 00 23 .0 0– 25 .0 0 16 .0 0– 18 .0 0 4. 00 –5 .0 0 0. 40 –0 .6 0 .. . Cb 0. 10 S3 47 00 34 7 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 9. 00 –1 3. 00 .. . .. . .. . Cb 10 × C m in , 1. 00 m ax S3 47 09 34 7H 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 9. 00 –1 3. 00 .. . .. . .. . Cb 8 × C m in , 1. 00 m ax S3 48 00 34 8 0. 08 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 9. 00 –1 3. 00 .. . .. . .. . Cb + Ta 10 × C m in ,1 .0 0 m ax Ta 0. 10 m ax Co 0. 20 S3 48 09 34 8H 0. 04 –0 .1 0 2. 00 0. 04 5 0. 03 0 0. 75 17 .0 0– 19 .0 0 9. 00 –1 3. 00 .. . .. . .. . Cb + Ta 8 × C m in , 1. 00 m ax Ta 0. 10 m ax Co 0. 20 S3 53 15 .. . 0. 04 –0 .0 8 2. 00 0. 04 0 0. 03 0 1. 20 –2 .0 0 24 .0 0– 26 .0 0 34 .0 0– 36 .0 0 .. . 0. 12 –0 .1 8 .. . Ce 0. 03 –0 .0 8 S3 81 00 X M -1 5H 0. 08 2. 00 0. 03 0 0. 03 0 1. 50 –2 .5 0 17 .0 0– 19 .0 0 17 .5 0– 18 .5 0 .. . .. . .. . .. . 366 ASME B&PVC sec2a$u160 06-04-99 09:08:07 pd: sec2a Rev 14.04 PART A — FERROUS MATERIAL SPECIFICATIONS SA-240 TA B LE 1 (C ON T’ D ) A 99 CH E M IC A L CO M P OS IT IO N R E QU IR E M E N TS ,% A U N S P ho s- D es ig na tio nB Ty pe C Ca rb on D M an ga ne se ph or us Su lfu r Si lic on Ch ro m iu m N ic ke l M ol yb de nu m N itr og en Co pp er Ot he r E le m en ts E ,F D up le x (A us te ni tic -F er ri tic ) S 31 20 0 .. . 0. 03 0 2. 00 0. 04 5 0. 03 0 1. 00 24 .0 –2 6. 0 5. 5– 6. 5 1. 2– 2. 0 0. 14 –0 .2 0 .. . .. . S 31 26 0 .. . 0. 03 1. 00 0. 03 0 0. 03 0 0. 75 24 .0 –2 6. 0 5. 50 –7 .5 0 2. 50 –3 .5 0 0. 10 –0 .3 0 0. 20 –0 .8 0 W 0. 10 –0 .5 0 S 31 80 3 .. . 0. 03 0 2. 00 0. 03 0 0. 02 0 1. 00 21 .0 –2 3. 0 4. 50 –6 .5 0 2. 50 –3 .5 0 0. 08 –0 .2 0 .. . .. . S 32 00 1 .. . 0. 03 0 4. 0– 6. 0 0. 04 0 0. 03 0 1. 00 19 .5 –2 1. 5 1. 00 –3 .0 0 0. 60 0. 05 –0 .1 7 1. 00 .. . S 32 20 5 .. . 0. 03 0 2. 00 0. 03 0 0. 02 0 1. 00 22 .0 –2 3. 0 4. 50 –6 .5 0 3. 00 –3 .5 0 0. 14 –0 .2 0 .. . .. . S 32 30 4 .. . 0. 03 0 2. 50 0. 04 0 0. 03 0 1. 00 21 .5 –2 4. 5 3. 00 –5 .5 0 0. 05 –0 .6 0 0. 05 –0 .2 0 0. 05 –0 .6 0 .. . S 32 52 0 .. . 0. 03 0 1. 50 0. 03 5 0. 02 0 0. 80 24 .0 0– 26 .0 0 5. 50 –8 .0 0 3. 00 –5 .0 0 0. 20 –0 .3 5 0. 50 –3 .0 0 .. . S 32 55 0 .. . 0. 04 1. 5 0. 04 0 0. 03 0 1. 0 24 .0 –2 7. 0 4. 5– 6. 5 2. 9– 3. 9 0. 10 –0 .2 5 1. 5– 2. 5 .. . S 32 75 0 .. . 0. 03 0 1. 20 0. 03 5 0. 02 0 0. 80 24 .0 –2 6. 0 6. 00 –8 .0 0 3. 00 –5 .0 0 0. 24 –0 .3 2 0. 50 .. . S 32 76 0 .. . 0. 03 0 1. 00 0. 03 0 0. 01 0 1. 00 24 .0 0– 26 .0 0 6. 00 –8 .0 0 3. 00 –4 .0 0 0. 20 –0 .3 0 0. 50 –1 .0 0 W 05 0– 1. 00 C r + 3. 3 M o + 16 N p 40 m in S 32 90 0 32 9 0. 08 1. 00 0. 04 0 0. 03 0 0. 75 23 .0 0– 28 .0 0 2. 50 –5 .0 0 1. 0– 2. 0 .. . .. . .. . S 32 95 0 .. . 0. 03 2. 00 0. 03 5 0. 01 0 0. 60 26 .0 0– 29 .0 0 3. 50 –5 .2 0 1. 00 –2 .5 0 0. 15 –0 .3 5 .. . .. . Fe rr iti c or M ar te ns iti c (C hr om iu m ) S 32 80 3 .. . 0. 01 5 0. 50 0. 02 0 0. 00 35 0. 55 28 .0 0– 29 .0 0 3. 0– 4. 0 1. 8– 2. 5 0. 02 0 .. . C b 0. 15 –0 .5 0 (C + N ) 12 (C + N ) m in 0. 03 0 m ax S 40 50 0 40 5 0. 08 1. 00 0. 04 0 0. 03 0 1. 00 11 .5 0– 14 .5 0 0. 60 .. . .. . .. . A l 0. 10 –0 .3 0 S 40 90 0I 40 9I S 40 91 0 .. . 0. 03 0 1. 00 0. 04 0 0. 01 0 1. 00 10 .5 –1 1. 7 0. 50 .. . 0. 03 0 .. . T i 6 × (C + N ) m in ; 0. 50 m ax S 40 92 0 .. . 0. 03 0 1. 00 0. 04 0 0. 01 0 1. 00 10 .5 –1 1. 7 0. 50 .. . 0. 03 0 .. . T i 8 × (C + N ) m in ; 0. 15 –0 .5 0 S 40 93 0 .. . 0. 03 0 1. 00 0. 04 0 0. 01 0 1. 00 10 .5 –1 1. 7 0. 50 .. . 0. 03 0 .. . (C b + T i) 0. 08 + 8 (C + N ) m in ; 0. 75 m ax ; T i 0. 05 m in S 40 94 5 .. . 0. 03 0 1. 00 0. 04 0 0. 03 0 1. 00 10 .5 0– 11 .7 5 0. 50 .. . 0. 03 0 .. . C b 0. 18 –0 .4 0 T i0 .0 5– 0. 20 S 40 97 5 .. . 0. 03 0 1. 00 0. 04 0 0. 03 0 1. 00 10 .5 0– 11 .7 5 0. 50 –1 .0 0 .. . 0. 03 0 .. . T i 6 (C + N ) m in an d 0. 75 m ax S 41 00 0 41 0 0. 15 1. 00 0. 04 0 0. 03 0 1. 00 11 .5 0– 13 .5 0 0. 75 .. . .. . .. . .. . S 41 00 3 .. . 0. 03 1. 50 0. 04 0 0. 03 0 1. 00 10 .5 0– 12 .5 0 1. 50 .. . .. . .. . N 0. 03 0 m ax S 41 00 8 41 0S 0. 08 1. 00 0. 04 0 0. 03 0 1. 00 11 .5 0– 13 .5 0 0. 60 .. . .. . .. . .. . S 41 04 5 .. . 0. 03 0 1. 00 0. 04 0 0. 03 0 1. 00 12 .0 0– 13 .0 0 0. 50 .. . 0. 03 0 .. . C b 9 (C + N ) m in , 0. 60 m ax S 41 05 0 .. . 0. 04 0 1. 00 0. 04 5 0. 03 0 1. 00 10 .5 0– 12 .5 0 0. 60 –1 .1 0 .. . 0. 10 .. . .. . S 41 50 0E .. . 0. 05 0. 5– 1. 0 0. 03 0 0. 03 0 0. 60 11 .5 –1 4. 0 3. 5– 5. 5 0. 5– 1. 0 .. . .. . .. . S 42 90 0 42 9G 0. 12 1. 00 0. 04 0 0. 03 0 1. 00 14 .0 0– 16 .0 0 .. . .. . .. . .. . .. . S 43 00 0 43 0 0. 12 1. 00 0. 04 0 0. 03 0 1. 00 16 .0 0– 18 .0 0 0. 75 .. . .. . .. . .. . S 43 03 5 43 9 0. 07 1. 00 0. 04 0 0. 03 0 1. 00 17 .0 0– 19 .0 0 0. 05 0 .. . 0. 04 .. . T i 0. 20 + 4 (C + N ) m in ; 1. 10 m ax A l0 .1 5 m ax 367 ASME B&PVC sec2a$u160 06-04-99 09:08:07 pd: sec2a Rev 14.04 SA-240 1998 SECTION II TA B LE 1 (C ON T’ D ) A 99 CH E M IC A L CO M P OS IT IO N R E QU IR E M E N TS ,% A U N S P ho s- D es ig na tio nB Ty pe C Ca rb on D M an ga ne se ph or us Su lfu r Si lic on Ch ro m iu m N ic ke l M ol yb de nu m N itr og en Co pp er Ot he r E le m en ts E, F Fe rr iti c or M ar te ns iti c (C hr om iu m ) S 43 40 0 .. . 0. 12 1. 00 0. 04 0 0. 03 0 1. 00 16 .0 0– 18 .0 0 .. . 0. 75 –1 .2 5 .. . .. . .. . S 43 60 0 .. . 0. 12 1. 00 0. 04 0 0. 03 0 1. 00 16 .0 0– 18 .0 0 .. . 0. 75 –1 .2 5 .. . .. . C b 5 × C m in ; 0. 80 m ax S 43 93 2 .. . 0. 03 0 1. 00 0. 04 0 0. 03 0 1. 00 17 .0 –1 9. 0 0. 50 .. . 0. 03 0 .. . T i + C b 0. 20 + 4 (C + N ) m in ; 0. 75 m ax A l 0. 15 m ax S 44 40 0 44 4 0. 02 5 1. 00 0. 04 0 0. 03 0 1. 00 17 .5 –1 9. 5 1. 00 1. 75 –2 .5 0 0. 03 5 .. . T i + C b 0. 20 + 4 (C + N ) m in ; 0. 80 m ax S 44 50 0 .. . 0. 02 0 1. 00 0. 04 0 0. 01 2 1. 00 19 .0 0– 21 .0 0 0. 60 .. . 0. 03 0. 30 –0 .6 0 C b 10 (C + N ) − 0. 80 S 44 62 6 X M -3 3H 0. 06 0. 75 0. 04 0 0. 02 0 0. 75 25 .0 0– 27 .0 0 0. 50 0. 75 –1 .5 0 0. 04 0. 20 T i 0. 20 –1 .0 0 7 (C + N ) m in S 44 62 7 X M -2 7H 0. 01 0G 0. 40 0. 02 0 0. 02 0 0. 40