1、 ( ) . , . , , , , , - , , , - . , , , . , , . . . , , . . ; , , - - - . , , - . , . . , . , . 718 (UNS N07718) , (6 ), . 6A 10423 718 . : “ . : “ , . - - , , . . , , 1220 L , NW, , DC 20005 . . , , , . . , (202) 682-8000. , 1220 L , NW, , DC 20005. , , , 1220 L , NW, , DC 20005, standardsapi.org. 1
2、 .7 1.1.7 1.2 .7 2 .7 3 , , .2 3.1 8 3.2 .8 4 718 (UNS N07718) .9 4.1 .9 4.2 .11 5 .15 6 16 () 718 17 1 13 2 V (10 10 ).14 3 .15 1 2 100x 500x 17 3 4 100x 500x 18 5 6 - 100x 500x 19 7 8 - 100x 500x 20 9 10 - 100x 500x .21 11 12 - 100x 500x .22 13 14 - 100x 500x 23 15 16 - 100x 500x 24 17 - 100x 500x
3、 25 (UNS N07718) 718 1 1.1 A 6A 10423718 (UNS N07718) . . 6A 10423, 718 , . 1.2 6A 10423 , 6A 10423 . . 2 . - . . . . API Specification 6A, ASTM A3701, ASTM A604, ASTM B880, , ASTM E10, ASTM E18, ASTM E112, ASTM E354, , , ASTM E1181, ASTM E1473, , , 6A718 104232, 3 , , 3.1 . 3.1.1 , . 3.1.2 - 718 .
4、- , Ni3Nb . 3.1.3 , , , . 3.2 . _ 1 , 100 , , 19428-2959. www.astm.org. 2 , 1, 56, CH-1211 20, . www.iso.org. - 4 718 (UNS N07718) 4.1 4.1.1 4.1.1.1 UNS N07718 . Ni Cr FeaCb (Nb) + Mo Ti Al Co Mn 50.0 17.0 4.87 2.80 0.80 0.40 55.0 21.0 bal. 5.20 3.30 1.15 0.60 0.045 1.00 0.35 Si P S Cu Pb Se Bi CabM
5、gb 0.35 0.010 0.010 0.0060 (60 ppm) 0.23 0.0010 (10 ppm)0.0005 (5 ppm)0.00005 (0.5 ppm) 0.0030 (30 ppm)0.0060 (60 ppm) a . b , . 4.1.1.2 ASTM E354, ASTM E1473 - . 4.1.1.3 () (), , B880 () . 4.1.2 4.1.2.1 a) 1- (). 2- () - (). 3- - (). 4- . : b) 1- (). 2- () - (). 3- . 4.1.3 4:1 . 4.1.4 4.1.4.1 6 . , , . 6 6 . 4.1.4.2 6A 10423 . , . , . 4.1.4.3 , . 1- 1870 F - 1925 F (1021 C 1052 C) . 2- , , . 3- 1425 F- 1475 F (774 C 802 C)
