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隆兴铸业常规材料标准
General Material Specification Of LONGXING
REV Date: 2008-12-31
N=Normalizing
Q+T=Quench+Temper
CHEMICAL COMPOSITION %
MECHANICAL PROPERTIES ≥
LONGXING Standard Material C
0.02-0.20
0.25
645 380 13 35
255 N
GB 60 0.57-0.65 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
675 400 12 35
255 N
GB 65 0.62-0.70 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
等级B：≤0.16 ≤0.55 0.80-1.50 0.040 0.040
等级A: ≤0.20 ≤0.55 1.00-1.60 0.045 0.045
等级B：≤0.20 ≤0.55 1.00-1.60 0.040 0.040
GB Q345 等级C：≤0.20 ≤0.55 1.00-1.60 0.035 0.035
375-406 235 26
410-510 255 24 490-610 275 20
295 175 35 315 185 33 355 205 29 325 195 33
335 205 31 375 225 27 410 245 25 450 275 23 490 295 21 530 315 20 570 335 19
等级D：≤0.20 ≤0.55 1.00-1.60 0.030 0.030
等级E：≤0.20 ≤0.55 1.00-1.60 0.025 0.025
等级A: ≤0.20 ≤0.55 1.00-1.70 0.045 0.045
等级B：≤0.20 ≤0.55 1.00-1.70 0.040 0.040
0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20
0.25
1080 880 7 30
285 N
GB 80 0.77-0.90 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
1080 930 6 30
285 N
GB 85 0.82-0.90 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
பைடு நூலகம்
0.25
1130 980 6 30
302 N
LONGXING GB 15Mn 0.12-0.19 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25
GB 20Mn 0.17-0.24 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 25Mn 0.22-0.30 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 30Mn 0.27-0.35 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 35Mn 0.32-0.40 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 40Mn 0.37-0.45 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 45Mn 0.42-0.50 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 50Mn 0.48-0.56 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 60Mn 0.57-0.65 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 65Mn 0.62-0.70 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 701Mn 0.67-0.75 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25
等级D：≤0.18 ≤0.55 1.00-1.60 0.030 0.030
等级E：≤0.18 ≤0.55
0.025 0.025
等级A: ≤0.20 ≤0.55 1.00-1.60 0.045 0.045
等级B：≤0.20 ≤0.55 1.00-1.60 0.040 0.040
GB Q390 等级C：≤0.20 ≤0.55 1.00-1.60 0.035 0.035
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
(2)GB标准优质碳素钢 （GB699-88）
GB 08F 0.05-0.11 ≤0.03 0.25-0.50 0.035 0.035 ≤0.10 ≤0.25 GB 10F 0.07-0.14 ≤0.07 0.25-0.50 0.035 0.035 ≤0.15 ≤0.25 GB 15F 0.12-0.19 ≤0.07 0.25-0.50 0.035 0.035 ≤0.25 ≤0.25 GB 08 0.05-0.12 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.10 ≤0.25 GB 08AL 0.05-0.12 ≤0.03 0.25-0.65 0.035 0.035 ≤0.10 ≤0.25 GB 10 0.07-0.14 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.15 ≤0.25 GB 15 0.12-0.19 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.25 ≤0.25 GB 20 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.25 ≤0.25 GB 25 0.22-0.30 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25 GB 30 0.27-0.35 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25 GB 35 0.32-0.40 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25 GB 40 0.37-0.45 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
Si
Mn P ≤ S ≤ Cr
Ni
Mo Cu≤ V
B
Tensil Yield
CE Strength strength Mpa Mpa
Elongate Reduction Impact rate % of area % test J
Hardness Heat HB treatment
GB 75 0.72-0.80 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
2.1.2 低合金高强度钢、耐候钢和建筑用钢筋 （1）GB新标准低合金高强度钢 （GB/T 1591-94）
等级A：≤0.16 ≤0.55 0.80-1.50 0.045 0.045 GB Q295
60 55 55 60
55 55 55 50 71 50 63 45 55 45 47
Hardness Heat HB treatment
N N
N
N N
131 N 137 N 143 N 131 N
N 137 N 143 N 156 N 170 N 179 N 197 N 217 N
GB 45 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
B
Tensil Yield
CE Strength strength Mpa Mpa
Elongate Reduction Impact rate % of area % test J
315-390 195 33 335-410 215 31
410 245 26 450 275 24 490 295 22 540 315 20 560 335 18 590 355 17 620 375 15 645 390 13 695 410 11 735 430 9 785 450 8
390-570 295 23 390-570 295 23 470-630 345 21 470-630 345 21 470-630 345 22 470-630 345 22 470-630 345 22 490-650 390 19 490-650 390 19 490-650 390 20 490-650 390 20 490-650 390 20 520-680 420 18 520-680 420 18
Si Mn P ≤ S ≤ Cr Ni Mo Cu≤ V
各国结构用钢 2.1.1 碳素结构钢和优质碳素结构钢 （1）GB标准碳素结构钢（GB700-88）
GB Q195 0.06-0.12 ≤0.30 0.25-0.5 0.045 0.05 ≤0.30 ≤0.30 GB Q215A 0.09-0.15 ≤0.30 0.25-0.5 0.045 0.05 ≤0.30 ≤0.30 GB Q215B 0.09-0.15 ≤0.30 0.25-0.55 0.045 0.045 ≤0.30 ≤0.30 GB Q235A 0.14-0.22 ≤0.30 0.30-0.65 0.045 0.05 ≤0.30 ≤0.30 GB Q235B 0.12-0.20 ≤0.30 0.30-0.70 0.045 0.045 ≤0.30 ≤0.30 GB Q235C ≤0.18 ≤0.30 0.35-0.80 0.040 0.040 ≤0.30 ≤0.30 GB Q235D ≤0.17 ≤0.30 0.35-0.80 0.035 0.035 ≤0.30 ≤0.30 GB Q255A 0.18-0.28 ≤0.30 0.40-0.70 0.045 0.050 ≤0.30 ≤0.30 GB Q255B 0.18-0.28 ≤0.30 0.40-0.70 0.045 0.045 ≤0.30 ≤0.30 GB Q275 0.28-0.38 ≤0.35 0.50-0.80 0.045 0.050 ≤0.30 ≤0.30
0.25
695 410 10 30
255 N
GB 70 0.67-0.75 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
715 420 9 30
269 N
Standard Material
C
CHEMICAL COMPOSITION %
MECHANICAL PROPERTIES ≥
55
163
50
197
50 71 207
45 63 217
45 55 229
45 47 229
40 39 241
40 31 255
35
269
30
285
30
285
34
34 34 34 27
34 34 34 27
34
N N N N N N N N N N N
GB Q420 等级C：≤0.20 ≤0.55 1.00-1.70 0.035 0.035
0.25
600 355 16 40 39 229 N
GB 50 0.47-0.55 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
630 375 14 40 31 241 N
GB 55 0.52-0.60 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
General Material Specification Of LONGXING
REV Date: 2008-12-31
N=Normalizing
Q+T=Quench+Temper
CHEMICAL COMPOSITION %
MECHANICAL PROPERTIES ≥
LONGXING Standard Material C
0.02-0.20
0.25
645 380 13 35
255 N
GB 60 0.57-0.65 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
675 400 12 35
255 N
GB 65 0.62-0.70 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
等级B：≤0.16 ≤0.55 0.80-1.50 0.040 0.040
等级A: ≤0.20 ≤0.55 1.00-1.60 0.045 0.045
等级B：≤0.20 ≤0.55 1.00-1.60 0.040 0.040
GB Q345 等级C：≤0.20 ≤0.55 1.00-1.60 0.035 0.035
375-406 235 26
410-510 255 24 490-610 275 20
295 175 35 315 185 33 355 205 29 325 195 33
335 205 31 375 225 27 410 245 25 450 275 23 490 295 21 530 315 20 570 335 19
等级D：≤0.20 ≤0.55 1.00-1.60 0.030 0.030
等级E：≤0.20 ≤0.55 1.00-1.60 0.025 0.025
等级A: ≤0.20 ≤0.55 1.00-1.70 0.045 0.045
等级B：≤0.20 ≤0.55 1.00-1.70 0.040 0.040
0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.15 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20 0.02-0.20
0.25
1080 880 7 30
285 N
GB 80 0.77-0.90 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
1080 930 6 30
285 N
GB 85 0.82-0.90 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
பைடு நூலகம்
0.25
1130 980 6 30
302 N
LONGXING GB 15Mn 0.12-0.19 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25
GB 20Mn 0.17-0.24 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 25Mn 0.22-0.30 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 30Mn 0.27-0.35 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 35Mn 0.32-0.40 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 40Mn 0.37-0.45 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 45Mn 0.42-0.50 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 50Mn 0.48-0.56 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 60Mn 0.57-0.65 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 65Mn 0.62-0.70 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25 GB 701Mn 0.67-0.75 0.17-0.37 0.70-1.00 0.035 0.035 ≤0.25 ≤0.25
等级D：≤0.18 ≤0.55 1.00-1.60 0.030 0.030
等级E：≤0.18 ≤0.55
0.025 0.025
等级A: ≤0.20 ≤0.55 1.00-1.60 0.045 0.045
等级B：≤0.20 ≤0.55 1.00-1.60 0.040 0.040
GB Q390 等级C：≤0.20 ≤0.55 1.00-1.60 0.035 0.035
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
(2)GB标准优质碳素钢 （GB699-88）
GB 08F 0.05-0.11 ≤0.03 0.25-0.50 0.035 0.035 ≤0.10 ≤0.25 GB 10F 0.07-0.14 ≤0.07 0.25-0.50 0.035 0.035 ≤0.15 ≤0.25 GB 15F 0.12-0.19 ≤0.07 0.25-0.50 0.035 0.035 ≤0.25 ≤0.25 GB 08 0.05-0.12 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.10 ≤0.25 GB 08AL 0.05-0.12 ≤0.03 0.25-0.65 0.035 0.035 ≤0.10 ≤0.25 GB 10 0.07-0.14 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.15 ≤0.25 GB 15 0.12-0.19 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.25 ≤0.25 GB 20 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035 ≤0.25 ≤0.25 GB 25 0.22-0.30 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25 GB 30 0.27-0.35 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25 GB 35 0.32-0.40 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25 GB 40 0.37-0.45 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
Si
Mn P ≤ S ≤ Cr
Ni
Mo Cu≤ V
B
Tensil Yield
CE Strength strength Mpa Mpa
Elongate Reduction Impact rate % of area % test J
Hardness Heat HB treatment
GB 75 0.72-0.80 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
2.1.2 低合金高强度钢、耐候钢和建筑用钢筋 （1）GB新标准低合金高强度钢 （GB/T 1591-94）
等级A：≤0.16 ≤0.55 0.80-1.50 0.045 0.045 GB Q295
60 55 55 60
55 55 55 50 71 50 63 45 55 45 47
Hardness Heat HB treatment
N N
N
N N
131 N 137 N 143 N 131 N
N 137 N 143 N 156 N 170 N 179 N 197 N 217 N
GB 45 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
B
Tensil Yield
CE Strength strength Mpa Mpa
Elongate Reduction Impact rate % of area % test J
315-390 195 33 335-410 215 31
410 245 26 450 275 24 490 295 22 540 315 20 560 335 18 590 355 17 620 375 15 645 390 13 695 410 11 735 430 9 785 450 8
390-570 295 23 390-570 295 23 470-630 345 21 470-630 345 21 470-630 345 22 470-630 345 22 470-630 345 22 490-650 390 19 490-650 390 19 490-650 390 20 490-650 390 20 490-650 390 20 520-680 420 18 520-680 420 18
Si Mn P ≤ S ≤ Cr Ni Mo Cu≤ V
各国结构用钢 2.1.1 碳素结构钢和优质碳素结构钢 （1）GB标准碳素结构钢（GB700-88）
GB Q195 0.06-0.12 ≤0.30 0.25-0.5 0.045 0.05 ≤0.30 ≤0.30 GB Q215A 0.09-0.15 ≤0.30 0.25-0.5 0.045 0.05 ≤0.30 ≤0.30 GB Q215B 0.09-0.15 ≤0.30 0.25-0.55 0.045 0.045 ≤0.30 ≤0.30 GB Q235A 0.14-0.22 ≤0.30 0.30-0.65 0.045 0.05 ≤0.30 ≤0.30 GB Q235B 0.12-0.20 ≤0.30 0.30-0.70 0.045 0.045 ≤0.30 ≤0.30 GB Q235C ≤0.18 ≤0.30 0.35-0.80 0.040 0.040 ≤0.30 ≤0.30 GB Q235D ≤0.17 ≤0.30 0.35-0.80 0.035 0.035 ≤0.30 ≤0.30 GB Q255A 0.18-0.28 ≤0.30 0.40-0.70 0.045 0.050 ≤0.30 ≤0.30 GB Q255B 0.18-0.28 ≤0.30 0.40-0.70 0.045 0.045 ≤0.30 ≤0.30 GB Q275 0.28-0.38 ≤0.35 0.50-0.80 0.045 0.050 ≤0.30 ≤0.30
0.25
695 410 10 30
255 N
GB 70 0.67-0.75 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
715 420 9 30
269 N
Standard Material
C
CHEMICAL COMPOSITION %
MECHANICAL PROPERTIES ≥
55
163
50
197
50 71 207
45 63 217
45 55 229
45 47 229
40 39 241
40 31 255
35
269
30
285
30
285
34
34 34 34 27
34 34 34 27
34
N N N N N N N N N N N
GB Q420 等级C：≤0.20 ≤0.55 1.00-1.70 0.035 0.035
0.25
600 355 16 40 39 229 N
GB 50 0.47-0.55 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25
0.25
630 375 14 40 31 241 N
GB 55 0.52-0.60 0.17-0.37 0.50-0.80 0.035 0.035 ≤0.25 ≤0.25