在高温下具有较高的强度和良好的化学稳定性的合金钢。它包括抗氧化钢(或称高温不起皮钢)和热强钢两类。抗氧化钢一般要求较好的化学稳定性，但承受的载荷较低。热强钢则要求较高的高温强度和相应的抗氧化性。耐热钢常用于制造锅炉、汽轮机、动力机械、工业炉和航空、石油化工等工业部门中在高温下工作的零部件。这些部件除要求高温强度和抗高温氧化腐蚀外，根据用途不同还要求有足够的韧性、良好的可加工性和焊接性，以及一定的组织稳定性。此外，还发展出一些新的低铬镍抗氧化钢种。耐热钢常用于制造锅炉、汽轮机、动力机械、工业炉和航空、石油化工等工业部门中在高温下工作的零部件。这些部件除要求高温强度和抗高温氧化腐蚀外，根据用途不同还要求有足够的韧性、良好的可加工性和焊接性，以及一定的组织稳定性。中国自1952年开始生产耐热钢。以后研制出一些新型的低合金热强钢，从而使珠光体热强钢的工作温度提高到600～620℃；此外，还发展出一些新的低铬镍抗氧化钢种。 　　耐热钢和不锈耐酸钢在使用范围上互有交叉，一些不锈钢兼具耐热钢特性，既可用作为不锈耐酸钢，也可作为耐热钢使用。耐热钢、耐腐蚀钢、耐磨钢、奥氏体耐热钢、马氏体耐热钢、铁素体耐热钢及珠光体耐热钢 1CR13 2CR13 3CR13 4CR13 420 420J2 1CR17 12Cr17Mn6Ni5N 12Cr18Mn9Ni5N 12Cr17Ni7 12Cr18Ni9 Y12Cr18Ni9 Y12Cr18Ni9Se 06Cr19Ni10 022Cr19Ni10 06Cr19Ni10N 06Cr19Ni9NbN 022Cr19Ni10N 10Cr18Ni12 06Cr23nI13 06Cr25Ni20 06Cr17Ni12Mo2 06CR17NI12MO3TI 022CR17NI12MO2 06CR17NI12MO2N 022CR17NI12MO2N 06CR18NI12MO2CU2 022CR18NI14MO2CU2 06CR19NI13MO3 022CR25NI22MO2N 022CR19NI13MO4N 022CR19NI13MO3 03CR18NI16MO5 07CR18NI11TI 06CR18NI11TI 06CR18NI11NB 06CR18NI9CU3 06CR18NI3SI4 022CR22NI5MO3N 022CR25NI6MO2N 03CR25NI6MO3CU2N 06CR13AL 022CR12 10CR17 Y10CR17 10CR17MO 088CR30MO2 088CR27MO 12CR12 06CR13 12CR13 13CR13MO Y12CR13 20CR13 30CR13 40CR13 Y30CR13 14CR17NI2 68CR17 85CR17 108CR17 Y108CR17 05CR17NI4CU4NB 07CR17NI7AL 07CR15NI7MO2AL S35350 S35450 S30110 S30210 S30317 S30327 S30408 S30403 S30458 S30478 S30453 S30510 S30908 S31008 S31608 S31668 S31603 S31658 S31653 S31688 S31683 S31708 S31053 S31753 S31703 S31794 S32169 S32168 S34778 S30488 S34148 S22253 S22553 S25554 S11348 S11203 S11710 S11717 S11790 S13091 S12791 S40310 S41008 S41010 S45710 S41617 S42020 S42030 S42040 S42037 S43110 S44070 S44080 S44096 S44097 S51740 S51770 S51570 法：X2CRNI12 X2CRTI12 X6CRNITI12 X6CR13 X6CR17 X3CRTI17 X3CRNB17 X6CRMO17-1 X2CRMOTI18-2 X1CRNB15 X5CRNIMOTI15-2 X2CRTI17 X2CRMOTI17-1 X6CRNI17-1 X6CRMONB 17-1 X2CRNBZR17 X2CRTINB18 X2CRMOTI29-4 X12CR13 X20CR13 X30CR13 X46CR13 X50CRMOV15 X39CRMO17-1 X3CRNIMO13-4 X4CRNIMO16-5-1 X15CR13 X38CRMO14 X55CRMO14 1.4003 1.4512 1.4516 1.4000 1.4002 1.4016 1.4510 1.4511 1.4113 1.4521 1.4595 1.4589 1.4520 1.4513 1.4017 1.4526 1.4590 1.4509 1.4592 1.4006 1.4021 1.4028 1.4031 1.4034 1.4116 1.4122 1.4313 1.4418 1.4024 1.4419 1.4110 X5CRNICUNB16-4 X7CRNIAL17-7 X1CRNIMOCU12-5-2 X1CRNIMOCU12-7-3 X10CRNI18-7 X2CRNI18-7 X2CRNI18-9 X2RNI19-11 X2CRNIN18-10 X5CRNI18-10 X8CRNIS18-9 X6CRITI18-10 X4CRNI18-12 X2CRNIMO17-12-2 X2CRNIMON17-11-2 X5CRNIMO17-12-2 X6CRNIMOTI17-12-2 X2CRNIMO17-12-3 X2CRNIMO18-14-3 X2CRNIMON17-13-5 X1NICRMOCU25-20-5 X1CRNIMOCUN24-22-8 X1CRNIMOCUNW24-22-6 X2CRNIMNMON25-18-6-5 X5CRNI17-7 X5CRNIN19-9 X8CRMNCUNB17-8-3 X11CRNIMNN19-8-6 X1CRNI25-21 X6CRNINB18-10 X1CRNIMON25-22-2 X6CRNIMONB17-12-2 X2CRNIMON17-13-3 X3CRNIMO17-13-3 1.4542 1.4568 1.4422 1.4423 1.4310 1.4318 1.4307 1.4306 1.4311 1.4301 1.4305 1.4541 1.4303 1.4404 1.4406 1.4401 1.4571 1.4432 1.4435 1.4439 1.4539 1.4652 1.4659 1.4565 1.4319 1.4315 1.4597 1.4369 1.4335 1.4550 1.4466 1.4580 1.4429 1.4436 X2CRNIMON18-12-4 X2CRNIMO18-15-4 X1CRNISI18-15-4 X12CRMNNIN17-7-5 X2CRMNNIN17-7-5 X12CRMNNIN18-9-5 X1NICRMOCU31-27-4 X1CRNIMOCUN20-18-7 X1NICRMOCUN25-20-7 X2CRNIN23-4 X2CRNI MON22-5-3 X2CRNICUN23-4 X2CRNIMON29-7-2 X2CRNIMOSI18-5-3 X2CRNIMOCUN25-6-3 X2CRNIMON25-7-4 X2CRNIMOCUWN25-7-4 1.4434 1.4438 1.4361 1.4372 1.4271 1.4373 1.4563 1.4537 1.4547 1.4529 1.4362 1.4462 1.4655 1.4477 1.4424 1.4507 1.4410 1.4501 德：X6CR13 X7CR14 X6CRAL13 X2CRNI12 X2CR11 X12CRS13 X12CR13 X6CR17 X20CR13 X15CR13 X30CR13 X39CR13 X46CR13 X65CR13 X17CRNI16-2 X14CRMOS17 X6CRMOS17 X70CRMO15 X55CRMO14 X110CRMOV15 X90CRMOV18 X6CRMO17-1 X50CRMOV15 X38CRMOV15 X20CRMO13 X39CRMO17-1 X105CRMO17 X5CRNI18-10 X4CRNI18-12 X8CRNIS18-9 X2CRNI19-11 X10CRNI18-8 X2CRNIN18-10 X3CRNI13-4 X2CRNIN18-7 X1CRNI25-21 X1CRNISI18-15-4 X2CRNIN23-4 X5CRNIMO17-12-2 X2CRNIMO17-12-2 X2CRNIMO17-13-2 X2CRNIMON17-11-2 X4CRNIMO16-5-1 X2CRNIMO18-14-3 X3CRNIMO17-13-3 X5CRNIMO17-13-3 X2CRNIMO18-15-4 X2CRNIMON17-13-5 X3CRNIMO27-5-2 X2CRNIMON25-5-3 X1CRNIMON25-25-2 X1CRNIMON25-22-2 X4NICRMOCUNB20-18-2 X5NICRMOCUTI20-18 X2CRTINB18 X3CRTI17 X3CRNB17 X2CRTI12 X6CRTI12 X2CRMOTI18-2 X1NICRMOCUN25-20-7 X1CRNIMOAL15-7-2 OV17 X1NICRMOCU25-20-5 X6CRNITI18-10 X5CRNICUNB16-4 X6CRNIBN18-10 X2NICRALTI32-20 X1NICRMOCU32-28-7 X1NICRMOCUN31-27-4 X2CRNIMNMONBN25-18-5-4 X3CRNICU18-9-4 X7CRNIAL17-7 X6CRNIMO17-12-2 X10CRNIMOTI18-12 X1CRNIMONB28-4-2 X3CRNIMOTI25-25 X6CRNIMONB17-12-2 X4CRNIMON25-7 X10CRNIMONB18-12 X5NICRMOCUNB22-18 1.4000 1.4001 1.4002 1.4003 1.4005 1.4016 1.4006 1.4021 1.4024 1.4028 1.4031 1.4034 1.4037 1.4057 1.4104 1.4105 1.4109 1.4110 1.4111 1.4112 1.4113 1.4116 1.4117 1.4120 1.4122 1.4125 1.4301 1.4303 1.4305 1.4306 1.4310 1.4311 1.4313 1.4318 1.4335 1.4361 1.4362 1.4401 1.4404 1.4406 1.4418 1.4429 1.4435 1.4436 1.4438 1.4439 1.4460 1.4462 1.4465 1.4466 1.4505 1.4506 1.4509 1.4510 1.4511 1.4512 1.4521 1.4529 1.4532 1.4535 1.4539 1.4541 1.4542 1.4550 1.4558 1.4562 1.4563 1.4565 1.4567 1.4568 1.4571 1.4573 1.4575 4.4577 1.4580 1.4582 1.4583 1.4586 日201 202 301 302 303 303SE 304 304L304N1 304N2 304LN 305 309S 310S 316 316TI 316L 316N 316N 316J1 316J1L 317 317LN 317L 317J1 321 321 347 XM7 XM15J1 329J3L 329J4L 405 410L 430 430F 434 447J1 XM27 403 405 410 410J1 416 420J1 416 420J1 420J2 420F431 440A 440B 440C 440F 630 631 632 321H 316LN SUS201 SUS202 SUS301 SUS302 SUS303 SUS303SE SUS303CU SUS304 SUS304L SUS304N1 SUS304N2 SUS304LN SUS304J3 SUS305 SUS309S SUS310S SUS312S SUS316 SUS316L SUS316N SUS316LN SUS316TI SUS316J1 SUS316J1L SUS316F SUS317 SUS317LN SUS317L SUS317J1 SUS321 SUS347 SUS836L SUS890L SUS329J1 SUSXM7 SUSXM15J1 SUS329J3L SUS329J4L SUS405 SUS410L SUS430 SUS430F SUS434 SUS447J1 SUSXM27 SUS403 SUS405 SUS410 SUS410J1 SUS416 SUS420J1 SUS420J2 SUS420F SUS431 SUS440A SUS440B SUS440C SUS440F SUS630 SUS631 SUS632 S20100 S20200 S30100 S30200 S30300 S30323 S30400 S30403 S30451 S30452 S30453 S30500 S30908 S31008 S31600 S31635 S31603 S31651 S31653 S31700 S31050 S31753 S31703 S32100 S32100 S34700 S38100 S31803 S31200 S32550 S40500 S43000 S43020 S43400 S44625 S40300 S40500 S41000 S42000 S42000 S43100 S44002 S44003 S44004 S44020 S17400 S17700 S15700 SUS304CU 韩：STS201 STS202 STS301 STS302 STS3030 STS303CU STS303SE STS304 STS304L STS304N1 STS304N2 STS304LN STS304J3 STS305 STS309S STS310S STS309 STS316 STS316F STS316L STS316N STS316LN STS316TI STS316J1 STS317 STS317L STS317LN STS321 STS317J1 STS347 STS350 STS836L STS890L STSXM27 STSXM7 STSXM15J1 STS329J1 STS329J3L STS329J4L STS405 STS410L STS430 STS430F STS434 STS447J1 STSXM27 STS403 STS410 STS410J1 STS410F2 STS416 STS420J1 STS420J2 STS420F STS420F2 STS431 STS440A STS440B STS440C STS440F STS630 STS631 瑞：2301 2302 2303 2304 2317 2320 2321 2322 2323 2324 2325 2326 2327 2328 2331 2332 2337 2338 2340 2343 2346 2347 2348 2350 2352 2353 2357 2360 2361 2366 2367 2368 2370 2371 2372 2374 2375 2376 2377 2378 2380 2382 2383 2384 2385 2387 2388 2562 2564 2570 2584 2662 英：X2CRNI12 X6CR13 X6CR17 X6CRMOS17 X6CRMO17-1 X2CRMOTIS18-2 X2CRTI17 X2CRTINB18 X3CRNB17 X2CRTINB18 X3CRNB17 X6CRMONB17-1 X12CR13 X12CRS13 X20CR13 X30CR13 X39CR13 X46CR13 X50CRMOV15 X14CRMOS17 X39CRMO17-1 X17CRNI16-2 X3CRMO13-4 X4CRNIMO16-5-1 X29CRS13 X70CRMO15 X105CRMO17 X90CRMO18 X15CR13 X38CRMO14 X40CRMOVN16-2 X55CRMO14 X46CRS13 X5CRNICUNB16-4 X7CRNIAL17-7 X5CRNIMOCUNB14-5 X1CRNIMOALTI12-9-2 X1CRNIMOALTI12-10-2 X2CRNIMOV13-5-2 X5NICRTIMOVB25-15-2 X10RNI18-8 X2CRNI18-9 X2CRNI19-11 X2CRNIN18-10 X5CRNI18-10 X8CRNIS18-9 X6CRNITI18-10 X4CRNI18-12 X2CRNIMO17-12-2 X2CRNIMON17-11-2 X5CRNIMO17-12-2 X6CRNIMOTI17-12-2 X6CRNIMOTI17-12-2 X2CRNIMO17-12-3 X2CRNIMOV17-13-3 X2CRNIMO18-14-3 X2CRNIMON17-13-5 X3CRNICU18-9-4 X1CRNIMOCU25-20-5 X6CRNINB18-10 X6CRNIMONB17-12-2 X2CRNIMO18-15-4 X1CRNISI18-15-4 X3CRNICU19-9-2 X6CRNICUS18-9-2 X3CRNICUMO17-11-3-2 X1NICRMOCU31-27-4 X1CRNIMOCUN25-25-5 X1CRNIMOCUN20-18-7 X1NICRMOCUN25-20-7 X1CRNIMOCUN24-22-8 X1CRNIMOCUNW24-22-6 X1CRNIMON25-22-6 X2CRNIMNMON25-18-6-5 X2CRNIMOCUS17-10-2 X5CRNI17-7 X5CRNIN19-9 X8CRMNCUNB17-8-3 X8CRMNNIN18-9-5 X9CRNI18-9 X9CRNI18-9 X11CRNIMNN19-8-6 X12CRMNNIN17-7-5 X3CRNIMON27-5-2 X2CRNIMON22-5-3 X2CRNIN23-4 X2CRNIMOCUN25-6-3 X2CRNIMON25-7-4 X2CRNIMOCUWN25-7-4 X2CRNIMON29-7-2 X2CRNIMOSI18-5-3 1.4003 1.4000 1.4016 1.4105 1.4113 1.4523 1.4520 1.4509 1.4511 1.4526 1.4006 1.4005 1.4021 1.4028 1.4031 1.4034 1.4116 1.4104 1.4122 1.4057 1.4313 1.4418 1.4029 1.4109 1.4125 1.4112 1.4024 1.4419 1.4123 1.4110 1.4035 1.4542 1.4568 1.4594 1.4530 1.4596 1.4415 1.4606 1.4310 1.4307 1.4306 1.4311 1.4301 1.4305 1.4541 1.4303 .1.4404 1.4406 1.4401 1.4571 1.4432 1.4429 1.4436 1.4435 1.4439 1.4567 1.4539 1.4550 1.4580 1.4438 1.4361 1.4560 1.4570 1.4578 1.4563 1.4537 1.4547 1.4529 1.4652 1.4659 1.4466 1.4565 1.4598 1.4319 1.4315 1.4597 1.4374 1.4325 1.4369 1.4372 1.4460 1.4462 1.4362 1.4507 1.4501 1.4410 1.4477 1.4424 美：ASTM 16-8-2H ASTM 201 ASTM 201L ASTM 201LN ASTM 202 ASTM XM-1 ASTM 205 ASTM XM-19 ASTM XM-31 ASTM XM-14 ASTM 216XM-17 ASTM 216LXM-18 ASTM ASTM XM-10 ASTM XM-11 ASTM XM-29 ASTM XM-28 ASTM 301 ASTM 302 ASTM 301L ASTM 301LN ASTM 302B ASTM 303 ASTM XM-15 ASTM 303SE ASTM XM-2 ASTM 303MA ASTM 304 ASTM 304L ASTM 304H ASTM XM-7 ASTM 304N ASTM XM-21 ASTM 304HN ASTM 304LN ASTM 304LHN ASTM 305 ASTM 308 ASTM 309 ASTM 309S ASTM 309HD ASTM 309CB ASTM 309HCB ASTM 310 ASTM 310S ASTM 310H ASTM 310CB ASTM 310HCB ASTM 310HCBN ASTM 310MOLN ASTM 314 ASTM 316 ASTM 316L ASTM 316H ASTM 316TI ASTM 316CB ASTM 316N ASTM 316LN ASTM 316LHN ASTM 317 ASTM 317L ASTM 317LMN ASTM 317LN ASTM 321 ASTM 321H ASTM 334 ASTM 347 ASTM 347H ASTM 348 ASTM 348H ASTM XM-15 ASTM 384 ASTM 622 ASTM 660 ASTM 800 ASTM 800H ASTM 904L ASTM XM-26 ASTM 2205 ASTM 2507 ASTM 2304 ASTM 255 ASTM 329 ASTM XM-34 ASTM 405 ASTM 409 ASTM 409CB ASTM 429 ASTM 430 ASTM 430F ASTM 430FSE ASTM 439 ASTM 430TI ASTM 434 ASTM 436 ASTM 442 ASTM 443 ASTM 444 ASTM 446 ASTM XM-33 ASTM XM-27 ASTM 25-4-4 ASTM 26-3-3 ASTM 29-4 ASTM 29-4C ASTM 29-4-2 ASTM 403 ASTM 410 ASTM 410S ASTM XM-30 ASTM 410CB ASTM 414 ASTM 416 ASTM XM-6 ASTM 416PLUSX ASTM 416SE ASTM 420 ASTM S420F ASTM 420FSE ASTM 616 ASTM 619 ASTM 439 ASTM 431 ASTM 440A ASTM 440B ASTM 440C ASTM 440D ASTM 440F ASTM 440FSE ASTM XM-32 ASTM 440E ASTM XM-13 ASTM XM-12 ASTM 632 ASTM 630 ASTM 635 ASTM 631 ASTM 633 ASTM 634 ASTM XM-25 ASTM XM-16 ASTM 651 ASTM 662 ASTM 660 ASTM 665 S16800 S20100 S20103 S20153 S20161 S20162 S20200 S20300 S20400 S20430 S20430 S20500 S20910 S21400 S21460 S21500 S21600 S21603 S21800 S21900 S21904 S24000 S24100 S28200 S30100 S30103 S30153 S30200 S30215 S30300 S30310 S30323 S30345 S30400 S30403 S30409 S30415 S30430 S30432 S30451 S30452 S30453 S30454 S30500 S30600 S30601 S30615 S30800 S30815 S30900 S30908 S30909 S30940 S30941 S31000 S31002 S31008 S31009 S31004 S31041 S31042 S31050 S31254 S31266 S31272 S31400 S31600 S31603 S31635 S31609 S31640 S31651 S31653 S31654 S31700 S31703 S31725 S31726 S31727 S31753 S32050 S32053 S32100 S32109 S32615 S32654 S33228 S33400 S34565 S34700 S34709 S34751 S34800 S34809 S35045 S35315 S38100 S38400 S38815 S66220 S66286 N08020 N08367 N08800 N08810 N08811 N08904 N08926 S31100 S31200 S31260 S31500 S31803 S32001 S32003 S32101 S32205 S32304 S32506 S32520 S32550 S32750 S32760 S32900 S32906 S32950 S39274 S39277 S18200 S18235 S32803 S40500 S40800 S40900 S40910 S40920 S40930 S40940 S40945 S40975 S40976 S40977 S41045 S41050 S41603 S42035 S42900 S43000 S43020 S43023 S43035 S43036 S43400 S43600 S43932 S43940 S44200 S44300 S44400 S44500 S44600 S44626 S44627 S44635 S44660 S44700 S44735 S44800 S46800 S40300 S41000 S41003 S41005 S41008 S41026 S41040 S41041 S41400 S41425 S41428 S41500 S41600 S41610 S41623 S41800 S42000 S42010 S42020 S42023 S42200S42225 S42300 S43035 S43100 S44002 S44003 S44004 S44020 S44023 S44025 S64152 S31800 S15500 S15700 S17400 S17600 S17700 S35000 S35500 S45000 S45500 S45503 S46500 S46910 S63198 S66220 S66286 S66545