các tiêu chuẩn mác thép quốc tế, nhằm mục đích so sánh và lựa chon các loại thép tương đương phù hợp giữa các tiêu chuẩn quốc tế.Trong đây có so sánh về mác thép JIS nhật bản, ASTM của Mỹ, Châu ÂU, Nga vv
Trang 1SPECIFICATIONS PRODUCT SPECIFICATIONS
(Structural Steel and Sheet Pile)
Type of
Product Classifications
Mechanical Properties
Yield Point N/mm 2 (min.)
tensile Strengt h N/mm 2
Yield Ratio
% (max.)
Elogation
% (min.) J (Min.) Impact Thickness Thicknes s Thickness Thicknes s
t ≤ 16 16 ≤ t ≤
t ≤ 5
5 <
t ≤ 16
t
>16 t >12
Structur
al
Steel
TIS 1227 1996
SM40
0 245 235 400-510 - 23 18 22 27A SM490 325 315 490-610 - 22 17 21 27A
SM520 365 355 520-640 - 19 15 19 27A
SS400 245 235 400-510 - 21 17 21 -SS490 285 275 490-610 - 19 15 19 -SS540 400 390 540 min - 16 13 17
-JIS G3101
1995
SS400 245 235 400-510 - 21 17 21 -SS490 285 275 490-610 - 19 15 19 -SS540 400 390 540 min - 16 13 17
-JIS G3106
1995
SM400
A 245 235 400-510 - 23 18 22 -SM400
B 245 235 400-510 - 23 18 22 27A SM490
A 325 315 490-610 - 22 17 21 -SM490
B 325 315 490-610 - 22 17 21 27A SM490
YA 365 355 490-610 - 19 15 19 -SM490
YB 365 355 490-610 - 19 15 19 27A JIS G3136
1994 SN400A 235 235 400-510 - 17 17 21
Trang 2-SN400 B
235-335G 235-355 400-510 80H 18 18 22 27A
SN490
B 235-445G 325-445 490-610 80H 17 17 21 27A
BS 4360
1986
43A 275 265 430-580 - 20 20 20 -43B 275 265 430-580 - 20 20 20 27B
43C 275 265 430-580 - 20 20 20 27A
50A 355 345 490-640 - 18 18 18 -50B 355 345 490-640 - 18 18 18 27B
50C 355 345 490-640 - 18 18 18 27A
EN 10025
1993
S275JR 275 265 410-560 - 22 22 22 27B
S355JR 355 345 490-630 - 22 22 22 27B
ASTM
-1997 A572
-1997 Gr.50A572 345 450 minE - 18
-1998 A992 345-450 450 min 85D 18
-DIN 17100
St 33 185 175 290 - 16
St 37-2 235 225 340-470 - 24
-St 44-2 275 265 470-610 - 20
-St 50-2 295 285 470-610 - 18
-St 52-3 355 345 490-630 - 20
-t &l-t; 11 11 ≤ t ≤40
AS/NZS
3679.1
1996
250 260 250 410 min - 22 -250LO 260 250 410 min - 22
-350 360 340 480 min - 20 -350LO 360 340 480 min - 20
-t<11 11 ≤t ≤
40
t > 17
300 320 300 280 440 min - 22
Trang 3-300LO 320 300 280 440 min - 22
-Sheet
Pile
JIS A5528
-TIS
-Remark - Carbon Equivalent (%) = C+Mn/6 + Si/24 +Ni/40 +Cr/5 +Mo/4 +V/14 (JIS Standard)
- Carbon Equivalent (%) = C+Mn/6 + (Cr +Mo+V)/5 + (Ni +Cu)/15 (AS,ASTM Standard)
- Chemical Composition on sensitivity of welding crack =C + Si/30 +Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/10 + 5B
- Bend test on material grades SS400, SS490, SS540
- Additional chemical composition controls for material under grade A992 are as follows:
Ni (max) = 0.45 , Cr (max.) =0.35 , Mo(max) =0.15 and mn/S (min.) = 20
* : Nitrogen control exclude
SM 400 is suitable for welded structure / เเเเ SM400 เเเ เเเเเเเ เ เเเเเเเเเเเ เเเเเเเเ เเเเ เ เเ เเเเเเ เ เเ
- SS 400 is suitable for general structure /เเเเ SS400 เเเ เเเเเเเ เ เเเเเ
Trang 4SPECIFICATIONS
PRODUCT SPECIFICATIONS
(Structural Steel and Sheet Pile)
Classifications
Chemical Compositions (ladle analysis)
C (max.
)
Si (max.
P (max.
)
S (max.
)
Carbon Equivale
nt
% (max.)
Sensitivit y of welding crack
% (max.)
N (max )
TIS 1227
1996
SM4
00 0.20 0.35
060-1.40 0.035 0.035 - - - - -SM49
0 0.18 0.55 max1.6 0.035 0.035 - - - - -SM52
0 0.20 0.55
1.6 max 0.035 0.035 - - - - -SS400 - - - 0.050 0.050 - - - - -SS490 - - - 0.050 0.050 - - - -
-SS540 0.30 - max1.6 0.040 0.040 - - - -
-JIS G3101
1995
SS400 - - - 0.050 0.050 - - - - -SS490 - - - 0.050 0.050 - - - -
-SS540 0.30 - max1.6 0.040 0.040 - - - -
-JIS G3106
1995 SM400 A 0.23
-2.5x C min 0.035 0.035 - - - - -SM40
0 B 0.20 0.35
0.60-1.40 0.035 0.035 - - - - -SM49 0.20 0.55 1.6 0.035 0.035 - - - -
Trang 5-0 A max SM49
0 B 0.18 0.55
1.6 max 0.035 0.035 - - - - -SM49
0 YA 0.20 0.55 max1.6 0.035 0.035 - - - - -SM49
0 YB 0.20 0.55
1.6 max 0.035 0.035 - - - -
-JIS G3136
1994
SN400
A 0.24 - - 0.050 0.050 - - - - -SN400
B 0.20 0.35
0.60-1.40 0.030 0.015 0.36 0.26 - - -SN490
B 0.18 0.55 max1.6 0.030 0.015 0.44 0.29 - -
-BS 4360
1986
43A 0.25 0.50 1.6
max 0.050 0.050 - - - -
-43B 0.21 0.50 max1.5 0.050 0.050 - - - -
-43C 0.18 0.50 1.5
max 0.050 0.050 - - - -
-50A 0.23 0.50 max1.6 0.050 0.050 - - 0.003
-0.100
0.003 -0.100
-50B 0.2C 0.50 1.50maxC 0.050 0.050 - - 0.003
-0.100
0.003 -0.100
-50C 0.2C 0.50 1.50maxC 0.050 0.050 - - 0.003
-0.100
0.003 -0.100
-EN 10025
1993
S275J
R 0.21
-1.5 max 0.045 0.045 - - - - 0.009* S355J
R 0.24 0.55 max1.6 0.045 0.045 - - - - 0.009*
AST
M
199
7 A36 0.26 0.40 - 0.040 0.050 - - -
-199
7 Gr.42A572 0.21 0.40 1.35
F
max 0.040 0.050 - - - 0.0150.01- -199
7
A572 Gr.50 0.23 0.40
1.35F
max 0.040 0.050 - -
- 0.01-0.015 -199
7 A992 0.23 0.10-0.40 0.50-1.50 0.035 0.045 0.45 - 0.05max 0.11max 0.012
Trang 6DIN 17100
-St
37-2 0.17 - - 0.050 0.050 - - - - 0.009*
St
44-2 0.21 - - 0.050 0.050 - - - - 0.009*
St
50-2 - - - 0.050 0.050 - - - - 0.009*
St
52-3 0.2 - - 0.040 0.040 - - - -
-AS/NZS
3679.1
1996
250 0.25 0.40 - 0.040 0.040 0.43 - - -
-250LO 0.20 0.40 max1.5 0.040 0.040 0.42 - - -
-350 0.22 0.50 max1.6 0.040 0.040 0.45 - - -
-350LO 0.22 0.50 max1.6 0.040 0.040 0.45 - - -
-300 0.22 0.50 1.6
max 0.040 0.040 0.44 - - -
-300LO 0.22 0.50 max1.6 0.040 0.040 0.44 - - -
-JIS A5528
1998
TIS
1390-1996
SY295 - - - 0.040 0.040 - - - -
-SY390 - - - 0.040 0.040 - - - -
-Remark A :Impact test on material grades SM400,SM490, SM520,SM400B,SM490YB,
SN400B,SN490B, 43C and 50C with thickness > 12 mm at 0 C
B :Impact test on material grades 43B, 50B, S275JR with thickness > 12mm at 20 C
C :It is permissible to vary the carbon and manganese contents (ladle analysis) for grades 50B and 50C on the basis of an increase of 0.06% manganese content for each decrease of 0.01% carbon or vice versa up to maximum manganese content
of 1.60% and maximum carbon of 0.22% for grades 50B and 50C
D :The yield radio (max.) for all thickness of materials under grades A992 is 85%
E : For grades 50 steel of thickness 20mmand under , the tensile strength shall be a minimum of 485 N/mm2
F : A maximum of manganese of 1.50% is permissible , with an associated reduction
of the carbon maximum of 0.03%
G :
For the h section, when the t1 s 9mm or less, the upper limit of the yield point or proof stress shall not be applied
H :For the H section , when the t1 is 9mm or less, the upper limit of the yield radio shall be 85%
Trang 7
- Material under TIS compulsory standard are for domestic use only , while materials under other standards are for exportation.
SM 400 is suitable for welded structure / เเเเ SM400 เเเ เเเเเเเ เ เเเเเเเเเเเ เเเเเเเเ เเเเ เ เเ เเเเเเ เ เเ
- SS 400 is suitable for general structure /เเเเ SS400 เเเ เเเเเเเ เ เเเเเ เเเเเเ เเเเเเเเ เเเเ เ เเเ
TOLERANCES TIS1227 : 1996 TIS 1227-1996
(HOT ROLLED H - SECTIONS)
Depth (H)
H<380 ± 2.0 380≤ H<580 ± 3.0
Width (B)
B<95 ± 2.0 95≤ B<190 ± 2.5
Thickness
(t 1 , t 2 )
t 1
t1<16 ± 0.7 16≤ t1<25 ± 1.0 25≤ t1<40 ± 1.5
t 2 t2<16 ± 1.0
16≤ t2<25 ± 1.5 25≤t2<40 ± 1.7
Trang 8Length (L)
L ≤ 7 m + 40
0
L > 7 m
40+(no of meter of L-7)
x 5 0
Squareness (T)
H≤ 300 B≤ 150 ≤1.5
B> 150 ≤1.0% of B
H> 300 B≤ 125 ≤1.5
B> 125 ≤1.2% of B
Bend H≤ 300 ≤0.15% of L To be applied to bend suchas sweep and camber
H> 300 ≤0.10% of L
H> 300,B> 200 ± 3.5
Concavity of web (W)
H<400 2.0 400≤H<600 2.5
Squareness of cut end
(e)
H≤ 187.5 ≤3.0 mm
B≤ 187.5 ≤3.0 mm
H> 187.5 ≤1.6% of H B> 187.5 ≤1.6% of B
Mass (kg/m.)
t<10 ± 5% 1 The maximum thickness
shall apply
2 These tolerances shall apply in the purchase of a single set of structural steel of the same size and thickness comprising not less than 10 pieces and a mass of not less than 1,000 kg