echivalente oteluri
TRANSCRIPT
Corespondenåe
oåel betonCompoziåia chimicã
Proprietãåi mecanice
Notã: (1) – Caracteristicile sunt în sistem imperial.(2) – Caracteristicile sunt în sistem internaåional.
Notã: * C echiv. = C + Mn/6** C echiv. = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
MARCA DE OÅEL STANDARD TIPOB 37 neted
neted
neted
neted
neted
neted
neted
neted
neted
neted
PC 52 striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
striat
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PC 60STAS 438/1-89
Grade 40Grade 60Grade 75Grade 300Grade 400Grade 500
ASTM A 615/ (1)
A 615M-93 (2)
Grade 250Grade 460
BS 4449-88
BSt 420 SBSt 500 S DIN 488-84
FeB 400FeB 500
EN 80-85
St 3 Sp (A I)BSt 3 Sp (A I)BSt 5 Sp (A II)
GOST 380
18G2S (A II)25 G2S (A III)35 GS (A III)
GOST 5781-82
PB 240PB 300 ISO 6935/1-91
RB 300RB 400RB 400 WRB 500RB 500 W
ISO 6935/2-91
S 400S 400 W IS 739-93
ADN 420 IRAM-IASU500-528-94
SR 235 (24)SR 295 (30)SD 345 (35)SD 390 (40)SD 495 (50)
JIS G 3112-87
FeE 215FeE 235
NFA 35-015-84
FeE 400 1;2;3
FeE 500 1;2;3NFA 35-016-86
B 400 SB 500 S UNE 36-068-94
COMPOZIÅIA CHIMICÃ, %MARCA DE OÅEL
C max. Mn max. Si max. S/P max. N max. Alte elemente C echiv. max.
MARCA DE OÅEL
OB 37 0.23 0.75 0.070.0450.045
- - -
PC 52 0.22 1.60 0.550.0450.045
- Ti 0.06 -
PC 60 0.27 1.60 0.550.0450.045
- V = 0.04 – 0.10 0.50 *
Grade 40 - - - - - -
Grade 60 - - - - - -
Grade 75 - - - - - -
Grade 300 - - - - - -
Grade 400 - - - - - -
Grade 500 - - -
-0.060
- - -
Grade 250 0.25 - -0.0600.060
0.012 - 0.42 **
Grade 460 0.25 - -0.0500.050
0.012 - 0.51 **
BSt 420 S 0.22 - -0.0500.050
0.012 - -
BSt 500 S 0.22 - -0.0500.050
0.012 - -
0.0500.050
FeB 400 0.22 - - 0.012 - -
FeB 500 0.22 - -0.0500.050
0.012 - -
St 3 Sp (A I) - - - - - - -
BSt 3 Sp (A I) 0.140.22
0.400.65
0.120.30
0.0500.040
- - -
BSt 5 Sp (A II) 0.280.37
0.500.80
0.150.35
0.0500.040
- - -
18G2S (A II) 0.140.23
1.201.60
0.600.90
0.0450.040
- - -
25 G2S (A III) 0.200.29
1.201.60
0.600.90
0.0450.040
- - -
35 GS (A III) 0.300.37
0.801.20
0.600.90
0.0450.040
- - -
PB 240 - - - - - -
PB 300 - - - - - -
RB 300 - - -
0.0600.060
- - -
RB 400 - - -0.0600.060
- - -
RB 400 W 0.22 1.60 0.600.0500.050
0.012 - 0.50 **
RB 500 - - -0.0600.060
- - -
RB 500 W 0.22 1.60 0.600.0500.050
0.012 - 0.50 **
S 400 0.38 - -0.0500.050
- (P+S 0.080) 0.60 **
S 400 W 0.24 - -0.0500.050
- (P+S 0.080) 0.55 **
ADN 420 - - -0.0500.040
- - -
SR 235 (24) - - -0.0500.050
- - -
SR 295 (30) - - -0.0500.050
- - -
SD 345 (35) 0.27 1.60 0.550.0400.040
- - 0.50 **
SD 390 (40) 0.29 1.80 0.550.0400.040
- - 0.55 **
SD 495 (50) 0.32 1.80 0.550.0400.040
- - 0.60 **
FeE 215 - - - - - - -
FeE 235 0.22 - 0.50 - - - 0.51 **
FeE 400 1;2;3 0.22 - 0.50 - - - 0.51 **
FeE 500 1;2;3 0.22 - 0.50 - - - 0.51 **
B 400 S 0.22 - -0.0500.050
- - 0.50 **
B 500 S 0.22 - -0.0500.050
- - 0.50 **
Limita decurgere Rp0.2
N/mm2 / min.
Rezistenåala tracåiune
RmN/mm2 / min.
Alungirea A5%
min.
Îndoire180o
diam. dorn (mm)Reîndoire
OB 37 255 (d=6-12)235 (d=14-40)
360 25 0.5d -
355(d=6-14)345 (d=16-28)335 (d=32-40)
510 20 3d -PC 52
d > 40 – proprietãåile mecanice se stabilesc prin contract
PC 60420 (d=6-12)
405 (d=14-28)395 (d=32-40)
590 16 3d -
Grade 40 40000 psi(~276)
70000psi(~ 483)
11 (bara nr. 3)12 (barele nr. 4-6)
3.5d (barele nr. 3-5)5d (bara nr. 6)
-
Grade 60 60000 psi(~414)
90000 psi(~621)
9 (barele nr. 3-6)8 (barele nr. 7;8)
7 (barele nr. 9-18)
3.5d (barele nr. 3-5)5d (barele nr. 6-8)7d (barele nr. 9-11)
9d [bara nr. 14; 18 (90o)]
-
Grade 75 75000 psi(~517)
100000 psi(~689)
7 (barele nr. 6-8)6 (barele nr. 9-18)
5d (barele nr. 6-8)7d (barele nr. 9-11)
9d [bara nr.14; 18(90o)]-
Grade 300 300 50011(d=10)
12 (d=15-20)3.5d (d=10-16)
5d (d=19)-
Grade 400 400 6009 (d=10-20)
8 (d=25)7 (d >30)
3.5d (d=10-16)5d (d=19-25)7d (d=29-36)
9d [d=43; 57(90o)]
-
Grade 500 500 700 6 (d >35)5d (d=19-25)7d (d=29-36)
9d [d=43;57(90o)]-
Grade 250 250 275 22 2d2d (45o)
mostre îmbãtrânite
mostre îmbãtrâniteGrade 460 460 506 12 3d
5d (45o)
BSt 420 S 420 500 10 -
5d (d=6-12)6d (d=14-16)8d (d=20-28)(90o/ >20o)
BSt 500 S 500 550 10 -
5d (d=8-12)6d (d=14-16)8d (d=20-28)(90o/ >20o)
FeB 400 400 440 14
5d (d<12)6d (d=12-18)8d (d=18-25)10d (d >25)
-
FeB 500 500 550 12
6d (d<12)8d (d=12-18)
10d (d=18-25)12d (d >25)
-
St 3 Sp (A I) 240380490
25 2.5d -
BSt 3 Sp (A I) - - - - -
BSt 5 Sp (A II) - - - - -
18G2S (A II) 294490
19 3d -
25 G2S (A III) 392 590 14 3d -
35 GS (A III) 392 590 14 3d -
PB 240 240 265 2012.5(d = 6)16 (d = 8)20 (d=10)
25 (d=12)32 (d=16)40 (d=20)
-
PB 300 300 330 1612.5(d = 6)16 (d = 8)20 (d=10)
32 (d=12)50 (d=16)63 (d=20)
-
RB 300 300 330 16
12.5(d = 6)16 (d = 8)20 (d=10)32 (d=12)
50 (d=16)63 (d=20)100 (d=25)125 (d=32)
-
RB 400
RB 400 W400 440 14
16(d = 6)20(d = 8)25 (d=10)40 (d=12)
63 (d=16)80 (d=20)125 (d=25)160 (d=32)
RB 500
32(d = 6)40 (d = 8)50 (d=10)63 (d=12)
100 (d=16)160 (d=20)200 (d=25)320 (d=32)
RB 500 W500 550 14
20 (d = 6)25 (d = 8)32 (d=10)50 (d=12)
80 (d=16)100 (d=20)160 (d=25)200 (d=32) mostre îmbãtrânite (90o)
S 400 24 (d = 6)32 (d = 8)40 (d=10)48 (d=12)56 (d=14)64 (d=16)
72 (d=18)100 (d=20)110 (d=22)125 (d=25)140 (d=28)160 (d=32)
32(d = 6)40 (d = 8)50 (d=10)63 (d=12)80 (d=14)100 (d=16)
125 (d=18)160 (d=20)176 (d=22)200 (d=25)250 (d=28)320 (d=32)
S 400 W400520
500 12
(90o) mostre îmbãtrânite (90o/20o)
mostre îmbãtrânite (90o/20o)
ADN 420 412 500 123.5d (d<25)5d (d=32)7d (d=40)
-
SR 235 (24) 235380520
20 1.5d -
SR 295 (30) 295440600
181.5d (d 16)
2d (d>16)-
SD 345 (35) 345440
490 181.5d (d 16)
2d (d>16)-
SD 390 (40) 390510
560 16 2.5d -
SD 495 (50) 490625
620 122.5d (d 25)
3d (d>25)-
FeE 215 215330490
22 2d -
FeE 235 235410490
250d (d< 20)1d (d 20)
2d (d< 20)3d (d 20)
1;2 / 3
5d (6 d 12) / 4d6d (12 <d 16) / 5d
8d (16 < d 25) / 6d10d (25 < d 40) / 8d
FeE 400 1;2;3 400 4401412
-
(90o/>30o)
1;2 / 3
6d (6 d 12) / 5d
8d (12 <d 16) / 6d10d (16 < d 25) / 8d
12d (25 < d 40) / 10d
FeE 500 1;2;3 500 550 128
-
(90o/>30o)
B 400 S 400 440 14 -
5d (d 12)6d (d = 12-16)8d (d = 16-25)10d (d > 25)(90o/>20o)
B 500 S 500 550 12 -
6d (d 12)8d (d = 12-16)10d (d = 16-25)
12d (d > 25)(90o/>30o)
Notã: d – diametrul barei / - Rm/Rp0.2 >1.05 / - Rm/Rp0.2 1.25 (oåelul este supus testului ciclic) / - Rm/Rp 0.2 1.05Pentru BSt 420 S æi BSt 500 S (conf. DIN 488) se face doar testul de reîndoire: mostrele se îndoaie, apoi se îndreaptã æi iar se îndoaie la un unghi >20 .°
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