〔2〕焊接结构用轧钢料
(Rolled Steels for Welded Structure)
标准代号 规格号码 记号 化学成分(%)Chemical composition 拉伸试验 Tensile requirements
C Si Mn P S Cu Nb N 厚度(mm) 降伏强度(Mpa) 抗拉强度(Mpa) 伸长度(%)
CNS 2947 SM400A ≦0.23 - ≦2.50 ≦0.035 ≦0.035 - - - ≦16 ≧245 400-510 ≧23
GB T700 Q235B 0.12-0.20 ≦0.30 0.30-0.70 ≦0.045 ≦0.045 - - - ≦16 ≧235 375-450 ≧26
JIS G3106 SM400A ≦0.23 - ≦2.50 ≦0.035 ≦0.035 - - - ≦16 ≧245 400-510 ≧23
ASTM A283M Gr.D ≦0.27 ≦0.40 ≦0.90 ≦0.035 ≦0.035 - - - - ≧230 415-550 ≧23
DIN 17100 USt42-2 ≦0.25 - 0.20-0.50 ≦0.050 ≦0.050 - ≦0.009 - 16≦t≦40 ≧245 410-490 ≧22
                             
CNS 2947 SM400B ≦0.20 ≦0.35 0.60-1.40 ≦0.035 ≦0.035 - - - ≦16 ≧245 400-510 ≧23
GB T700 Q235B 0.12-0.20 ≦0.30 0.30-0.70 ≦0.045 ≦0.045 - - - ≦16 ≧235 375-450 ≧26
JIS G3106 SM400B ≦0.20 ≦0.35 0.60-1.40 ≦0.035 ≦0.035 - - - ≦16 ≧245 400-510 ≧23
ASTM A284 Gr.D ≦0.27 0.15-0.40 ≦0.90 ≦0.04 ≦0.050 - - - - ≧230 ≧415 ≧21
DIN 17100 RSt42-2 ≦0.25 - 0.20-0.50 ≦0.05 ≦0.05 - - ≦0.007 16≦t≦40 ≧245 410-490 ≧22
DIN 17100 St42-3U ≦0.23 0.03-0.30 0.20-0.50 ≦0.045 ≦0.045 - - ≦0.009 16≦t≦40 ≧245 410-490 ≧22
DIN 17100 St44-2 ≦0.21 - - ≦0.05 ≦0.050 - - ≦0.009 ≦16 ≧275 430-580 -
DIN 17100 St44-3 ≦0.20 - - ≦0.04 ≦0.040 - - - ≦16 ≧275 430-580 -
                             
CNS 2947 SM400C ≦0.18 ≦0.35 ≦1.40 ≦0.035 ≦0.035 - - - ≦16 ≧245 400-510 ≧23
JIS G3106 SM400C ≦0.18 ≦0.35 ≦1.40 ≦0.035 ≦0.035 - - - ≦16 ≧245 400-510 ≧23
ASTM A572 Gr.42 ≦0.21 ≦0.40 ≦1.35 ≦0.040 ≦0.050 - - - - ≧290 ≧415 ≧24
DIN 17100 St42-3U ≦0.23 0.03-0.30 0.20-0.50 ≦0.045 ≦0.045 - - ≦0.009 16≦t≦40 ≧245 410-490 ≧22
DIN 17100 St44-3 ≦0.20 - - ≦0.040 ≦0.040 - - - ≦16 ≧245 400-510 ≧23
                             
CNS 2947 SM490A ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧315 490-610 ≧22
JIS G3110 SM490A ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧315 490-610 ≧22
ASTM A633 Gr.C ≦0.20 0.15-0.50 1.15-1.50 ≦0.035 ≦0.04 - - 0.01-0.05 ≦63 ≧345 485-620 ≧23
ASTM A678 Gr.A ≦0.16 0.15-0.50 0.90-1.50 ≦0.035 ≦0.04 - - - ≦20 ≧345 485-620 ≧22
ASTM A709 Gr.50W ≦0.20 0.15-0.50 1.15-1.50 ≦0.035 ≦0.04 - - 0.01-0.05 ≦63 ≧345 485-620 ≧23
DIN 17100 St52-3 ≦0.20 ≦0.55 ≦1.60 ≦0.04 ≦0.04 - - - 16≦t≦40 ≧345 440-630 -
                             
CNS 2947 SM490B ≦0.18 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧315 490-610 ≧22
JIS G3110 SM490B ≦0.18 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧315 490-610 ≧22
ASTM A678 Gr.B ≦0.20 0.15-0.50 0.70-1.35 ≦0.035 ≦0.04 ≦0.02 - - ≧28.1 ≧345 485-620 ≧22
DIN 17100 St52-3 ≦0.20 ≦0.55 ≦1.50 ≦0.05 ≦0.005 - - - 16≦t≦40 ≧345 490-630 -
                             
CNS 2947 SM490C ≦0.18 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧315 490-610 ≧22
JIS G3110 SM490C ≦0.18 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧315 490-610 ≧22
                             
CNS 2947 SM490YA ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧355 490-610 ≧19
JIS G3110 SM490YA ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧355 490-610 ≧19
ASTM A570 Gr.50 ≦0.25 - ≦1.35 ≦0.035 ≦0.040 - - - - ≧345 ≧450 -
                             
CNS 2947 SM490YB ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧355 490-610 ≧19
JIS G3110 SM490YB ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - 16≦t≦40 ≧355 490-610 ≧19
ASTM A570 Gr.50 ≦0.25 - ≦1.35 ≦0.040 ≦0.050 - - - - ≧345 ≧450 -
                             
CNS 2947 SM520B ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - ≦16 ≧365 520-640 ≧19
JIS G3110 SM520B ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - ≦16 ≧365 520-640 ≧19
ASTM A572 Gr.50 ≦0.23 ≦0.40 ≦1.35 ≦0.040 ≦0.050 - - - - ≧345 ≧450 ≧21
DIN 17100 St52-3 ≦0.20 ≦0.55 ≦1.60 ≦0.040 ≦0.040 - - - 16≦t≦40 ≧345 490-630 -
                             
CNS 2947 SM520C ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - ≦16 ≧365 520-640 ≧19
JIS G3106 SM520C ≦0.20 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - ≦16 ≧365 520-640 ≧19
ASTM A572 Gr.50 ≦0.23 ≦0.40 ≦1.35 ≦0.040 ≦0.050 - - - - ≧345 ≧450 ≧21
                             
CNS 2947 SM570 ≦0.18 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - ≦16 ≧460 570-720 ≧19
JIS G3106 SM570 ≦0.18 ≦0.55 ≦1.60 ≦0.035 ≦0.035 - - - ≦16 ≧460 570-720 ≧19
ASTM A572 Gr.65 ≦0.23 ≦0.40 ≦1.65 ≦0.040 ≦0.050 - - - - ≧415 ≧520 ≧18
DIN 17100 St60-2 - - - ≦0.050 ≦0.050 - - - ≦16 ≧335 590-710 -