AS-NZS 3678-2011為澳洲低合金鋼板標(biāo)準(zhǔn),其標(biāo)準(zhǔn)下有7個質(zhì)量等級標(biāo)準(zhǔn),分別是:AS3675-200;AS3675-250;AS3675-300;AS3675-350;AS3675-400;AS3675-450;AS3675-WR350,其化學(xué)成分如下表所示:
質(zhì)量等級 化學(xué)元素含量(%)
C Si Mn P S Cr Ni Cu Mo AL Ti
200 ≤0.15 ≤0.35 0.60~1.70 ≤0.30 ≤0.30 ≤0.25 ≤0.50 ≤0.40 ≤0.10 ≤0.100 ≤0.040
250 ≤0.22 ≤0.55 0.70~1.70 ≤0.40 ≤0.30 ≤0.25 ≤0.50 ≤0.40 ≤0.10 ≤0.100 ≤0.040
300 ≤0.22 ≤0.55 0.70~1.70 ≤0.40 ≤0.30 ≤0.25 ≤0.50 ≤0.40 ≤0.10 ≤0.100 ≤0.040
350 ≤0.22 ≤0.55 0.70~1.70 ≤0.40 ≤0.30 ≤0.25 ≤0.50 ≤0.40 ≤0.35 ≤0.100 ≤0.040
400 ≤0.22 ≤0.55 0.70~1.70 ≤0.40 ≤0.30 ≤0.25 ≤0.50 ≤0.40 ≤0.35 ≤0.100 ≤0.040
450 ≤0.22 ≤0.55 0.80~1.70 ≤0.40 ≤0.30 ≤0.25 ≤0.50 ≤0.60 ≤0.35 ≤0.100 ≤0.040
WR350 ≤0.14 ≤0.15 0.75~1.70 ≤0.160 ≤0.30 0.35~1.05 ≤0.55 0.15~0.50 ≤0.10 ≤0.100 ≤0.040
其力學(xué)性能如下表所示:
質(zhì)量等級 屈服強(qiáng)度 抗拉強(qiáng)度 伸長率
厚度(mm)
≤8 >8≤12 >12≤20 >20≤32 >32≤50 >50≤80 >80≤150 300 24
200 200 200 - - - - - 300 24
250 280 260 250 250 250 240 230 410 22
21300 320 310 300 280 280 270 260 430 21
350 360 360 350 340 340 340 330 450 20
400 400 380 360 360 360 360 480 18
450 450 450 420 400 - - 520
500 16
18
WR350 340 340 340 340 - - 450 2 |
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