1、BRITISH STANDARD Open die steel forgings for general engineering purposes - Part 4: Stainless steels The European Standard EN 1025041999 has the status of a British Standard ICs 77.140.85 IS EN 025042000 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMI1TED BY COPYRIGHT LAW STD-BSI BS EN 10250-4-ENG
2、L 2000 Lb24bb9 0828972 782 BS EN 10260-4:2000 been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Commiaee and comes into effect on 15 Febniary 2 Amd. No. O BSI 02-2000 ISBN O 580 35394 X National foreword Date Comments This Briti
3、sh Standard is the official English language veision of EN 10250.4: 1999. This British Standard supersedes Table 11 of BS 970-1 which is currently under review. The UK paricipation in its preparation was entrusted to Technical Conamittee ISEBl, Wrought steels, which has the responsibihty to: - aid e
4、nquirem to understand the text; - present to the responsible European conunittee any enquiries on the . interpretation, or proposals for change, and keep the UK interests informed - monitor related international and European developments and promulgate them in the UK. A list of organizations represe
5、nted on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ”Intemational Stan 77.140.85 English v
6、ersion Open die steel forgings for general engineering purposes - Part 4: Stainless steels Pices forges en acier pour usage gnral - Partie 4: Aciers inoxydables Freiformschmiedestcke aus Stahl fr allgemeine Verwendung - Teil 4: Nichtrostende Sthle This European Standard was approved by CEN on 9 Sept
7、ember 1999. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning sich national standards may be ob
8、tained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by trmslation under the responsibility of a CEN member into its own language and notified to the Central Sec
9、retariat has the same status as he official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPE
10、AN COMMITEE FOR STANDARDIZATION COMITE EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secretariat: rue de Stassart, 36 8-1050 8russels O 1999 CEN All rights of exploitation in any form and by any means resewed worldwide for CEN national Members. Ref. No. EN 10250-411999 E STD-BSI B
11、S EN L0250-4-ENGL 2000 M Zb24bb9 0828974 555 9 PagL 2 EN 10250-4: 1999 Contents Foreword 1 Scope 2 Normative references 3 Chemical composition 4 Heat treatment 5 Mechanical properties Annex A (informative) Annex B (informative) Annex C (informative) Heat treatment details Mechanical properties at lo
12、w temperatures Elevated temperature proof strength Page 3 4 4 4 9 9 13 16 17 OBSI 02-2000 STD.BSI BS EN 10250-4-ENGL 2000 1624669 0828975 49teel designation Vame KzCrNil8-9 X2CrNi19-11 X2CrNiN 18- 1 O X4CrNil8-IO X6CrNiTi 1 8- 1 O X2CrNiMol7-12-2 X2CrNiMoN17-12-2 X4CrNiMo17-12-2 X6CrNiMoTi 17-1 2-2
13、X2CrNiMoN17-13-3 X4CrNiMol7-13-3 XZCrNiMol8-14-3 XI NiCrMoC30-20-5 XcrNiNl8-10 XINiCrMoCu3 1-27-4 X 1 CrNiMoCuN20- 18-7 XINiCrMoCuN25-20-7 1 = longitudinal tr = transverse i .4307 1.4306 1.4311 1.4301 1.4541 1.4404 1.4406 1 .ao1 1.4571 1.4429 1.4436 1.4435 1.4539 1.4550 1.4563 1.4541 1.4529 Thicknes
14、s of ruling section tR mm max 250 250 250 250 450 250 250 250 450 400 250 250 250 450 250 250 250 Proof strength I Rm2 min 75 180 170 I90 I90 200 280 200 200 280 200 200 230 205 220 300 300 210 215 305 225 225 235 315 235 235 315 235 235 260 240 250 340 340 450 to 680 460 to 680 550 to 760 500 to 70
15、0 500 to 700 500 to 700 580 to 800 500 to 700 500 to 700 580 to 800 500 to 700 500 to 700 530 to 730 510 to 740 500 to 750 650 to 850 650 to 850 Elongation Amin % tri 35 35 30 35 30 30 30 30 30 30 30 30 30 30 30 30 35 mpact energy KV min O0 1 O0 I O0 I O0 I O0 I O0 1 O0 1 O0 1 O0 1 O0 1 O0 100 1 O0
16、1 O0 1 O0 1 O0 1 O0 - J r” 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 - OBSI 02-2000 STD.BSI BS EN 10250-4-ENGL 2000 Iib24bb7 0828784 474 a Elongation A. min. %, 1 tri 20 15 25 20 25 20 25 20 25 20 25 20 Page 12 EN 10250-4:1999 Inpact energy XVmin J 1 tri 85 50 100 60 100 60 100 60 100 60 10
17、0 60 Table 7: Mechanical properties at room temperature in the solution annealed condition - Austenitic-ferritic grades X3CrNiMoN27-5-2 X2CrNiMoN22-5-3 X2CrNiN23-4 XCrNiMoCuN25-6-3 XCrNiMoN25-7-4 XCrNiMoCuWN25-7-4 Steel designation 1.4460 160 1.4462 350 1.4362 160 1.4507 160 1.4410 160 1.4501 160 Na
18、me I Number Thickness of ruling section tR mm max Proof strength R, min N/mm* 460 450 400 500 530 530 Tensile strength 4-n N/mm2 . 620 to 880 650 to 880 600 to 830 700 to 900 730 to 930 730 to 930 OBSI 02-2000 STD.BSI BS EN L0250-4-ENGL 2000 Lb24bb9 0828985 330 QT 900 A P 930 P 1070 P 1300 Page 13 E
19、N 10250-411999 550 to 620 - 950 to 1050 Oil 600 to 750 - Furnace or air - - 1 020to 1 O80 Oil 620 1 020 to 1 O80 oil 550 - 1 020 to 1 080 Oil 480 - Annex A (informative) Heat treatment details Heat treatment conditions are given in Tables A.l, A.2 and A.3. Table A.l: Heat treatment conditions - ferr
20、itic and martensitic grades Steel designation X6CrAI 13 X6Crl7 1.4016 X5CrNiCuNbl6-4 1.4542 il- - A 600 to 650 - - QT 760 950 to 1 O50 Oil - 590 to 640 OBSI 02-2000 Page 14 EN 10250-4:1999 Table A.2: Heat treatment conditions - austenitic grades Steel designation Name X2CrNi 18-9 X2CrNi 19- 1 1 X2Cr
21、NiN 18- 1 O X4CrNi 18- 1 O XCrNiTi 18- 1 O X6CrNiNb 18-10 X2CrNiMol7-12-2 X2CrNiMoN 1 7- 1 1-2 XCrNiMoTi 17- 12-2 X5CrNiMo 1 7- 12-2 X3CrNiMo17-13-2 X2CrNiMoN 17- 1 3-3 X2CrNiMo 18- 14-3 X lNiCrMoC25-20-5 XlCrNiMoCuN20-18-7 XlNiCrMoCuN25-20-7 XlNiCrMoCu3 1-27-4 Number 1.4307 1.4306 1.4311 1.430 1 1.
22、4541 1.4550 1 .MO4 1 .MO6 1.4571 1.4401 1 .436 1.4429 1.4435 1.4539 1.4547 1.4529 1.4563 Solution annealing temperature “C 1 O00 to 1 100 “ “ 1 oooto 1 100 1 O00 to 1 100 1 oooto 1 100 1 020 to 1 120 1020 to 1 120 1020 to 1 120 1 020 to 1 120 1 020 to1 120 1020 to 1 120 1 020 to 1 120 1020 to 1 120
23、1 020 to 1 120 1 050 to 1 150 1 140 to 1200 1 120to 1 180 1 050 to 1 150 Cooling medium _. Water o air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Water or air Wa
24、ter OBSI 02-2000 STD.BS1 BS EN 30250-4-ENGL 2000 Lb24bb9 0828987 203 Solution annealing OC i temperature Page 15 EN 10250-4:1999 Cooling medium Table A.3: Heat treatment conditions - austenitic-ferritic grades Water or air Water or air Water or air Water or air Water or air 1 Waterorair I Steel desi
25、gnation I Name I Number X3CrNiMoN27-5-2 X2CrNiMoN22-5-3 X2CrNiN23-4 X2CrNiMoCuN25-6-3 X2CrNiMoN25-7-4 XCrNiMoCuWN25 -7-5 1.4460 1.4462 1.4362 1.4507 1.4410 1.4501 1 020 to 1 100 1020 to 1 100 950 to 1 050 104oto 1 120 1 040 to 1 120 1040 to 1 120 OBSI 02-2000 Fage 16 EN 10250-4:1999 Annex B (informa
26、tive) Mechanical properties at low temperatures Properties of certain steels at low temperatures are given in Table B. 1. Table B.l: Mechanical properties at low temperatures (typical alues) I I I I Steel designation I X2CrNi 19-11 1 1.4306 I 230 X5CrNi 18- i0 X6CrNi Ti 1 8- i O I X6CrNiNb18-10 I 1.
27、4550 I 360 I - 196C I - 150 “C N/mm2 N/m2 N/mmz 1200 45 60 240 i 350 40 60 i400 40 60 400 i 500 35 i 200 40 60 400 1350 35 I 1 1 1: 1 1 i 350 1 1 O00 30 60 600 1150 30 i 250 60 60 40 60 60 OBSI 02-2000 STD*BSI BS EN L0250-4-ENGL 2000 Zb24bb9 0828989 T8b X3CrNiMo13-4 X4CrNiMol6-5-1 Page 17 EN 10250-4
28、:1999 1.4313 QT 650 500 490 480 470 460 450 - QT 780 590 515 560 545 530 515 - QT 9O 720 690 665 640 620 - - - 1.4418 QT 760 520 510 5 O0 490 480 - Annex C (informative) Elevated temperature proof strength Elevated temperature proof strength values are given in Tables C.l, C.2 and C.3 for informatio
29、n. Table C.1: Minimum values for the 0,2 % proof strength of ferritic and martensitic grades at elevated temperatures ri A = annealed QT = quenched andtempered OBSI 02-2000 STD B: i( F 3 Q o 2 s *n c, i( Y a, f .r( z c, AI Q) 0 c, AI v) 0 0 c, v) i( i( cr O O O W O in m O-4-ENGL 1624bb9 C r- I 00 N
30、d in s O z 8 N O O - m O - - m O VI W in m - in o; in in e in s VI 2 O 4: m O N O M - in M - in 0 in 0 O 2 in 2 - O 4: in O N - VI o O z - I! N - in N in 74 - O I- N - m in - - O 2 in W - O p: in N m N - in v - in 2 - in F in r- e o m 3 in m c O m - O N N 2 c - O c? VI I in in - O s c 628990 7TB = m
31、 o STD-BSI BS EN 10250-4-ENGL 2000 - lb24bb9 0828991 I334 Page 19 EN 10250-4:1999 Steel designation Name Number X3 CrNiMoN27-5-2 1.4460 X2CrNiMoN22-5 -3 1.4462 X2CrNiN23-4 1.4362 X2CrNiMoCuN25-6-3 1.4507 X2CrNiMoN25-7-4 1.4410 X2CrNiMoCuWN25-7-4 1.4501 Table C.3: Minimum values for the 0,2 % proof s
32、trength of austenitic-ferritic steels at elevated temperatures in the solution annealed condition Minimum 0,2 % proof strength (N/mm2) at a temperature (in OC) of 1 O0 150 200 250 360 335 310 295 360 335 315 300 330 300 280 265 450 420 400 3 80 450 420 400 3 80 450 420 400 380 BS EN 10250-4:2000 BSI
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