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Grade :
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SM490C結(jié)構(gòu)鋼 軋制鋼
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Number:
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S420N
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Classification:
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合金特種結(jié)構(gòu)鋼
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Standard:
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EN 10025-3:2004結(jié)構(gòu)鋼熱軋產(chǎn)品。正火/正火軋制可焊接細(xì)晶粒結(jié)構(gòu)鋼交貨技術(shù)條件
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EN 10113-2:1993可焊接細(xì)晶粒結(jié)構(gòu)鋼的熱軋產(chǎn)品。正火/正火軋制鋼的交貨條件
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Equivalent grades:
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Chemical comb % of steel S420N (SM490C ): EN 10025-3-2004
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標(biāo)稱厚度=<63（mm）CEV最大值=0.53
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標(biāo)稱厚度63至100（mm）CEV最大值=0.54
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對于長產(chǎn)品，P和S含量可高出0.005%
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對于鐵路應(yīng)用，可在詢價和訂購時商定0.01%的最大S含量
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在存在足夠的其他N-結(jié)合元素的情況下，最小總Al含量不會變平
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在熱成型過程中，Cu含量超過0.4%可能會導(dǎo)致熱短路
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C
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Si
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Mn
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Ni
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P
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S
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Cr
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Mo
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V
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N
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Nb
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Ti
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Al
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Cu
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CEV
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max 0.2
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max 0.6
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1 - 1.7
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max 0.8
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max 0.03
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max 0.025
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max 0.3
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max 0.1
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max 0.2
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max 0.025
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max 0.05
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max 0.05
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max 0.02
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max 0.55
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max 0.52
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Mechanical properties of steel S420N (SM490C )
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Nominal thickness (mm):
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to 100
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100 - 200
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200 - 250
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Rm - Tensile strength (MPa)
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520-680
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500-650
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500-650
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Nominal thickness (mm):
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to 16
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16 - 40
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40 - 63
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63 - 80
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80 - 100
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100 - 150
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150 - 200
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200 - 250
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ReH - Minimum yield strength (MPa)
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420
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400
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390
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370
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360
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340
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330
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320
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KV - Impact energy (J) longitud., (+N)
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+20°
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0°
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-10°
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-20°
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55
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47
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43
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40
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KV - Impact energy (J) transverse, (+N)
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+20°
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0°
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-10°
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-20°
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31
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27
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24
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20
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Nominal thickness (mm):
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to 16
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16 - 40
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40 - 63
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63 - 80
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80 - 200
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200 - 250
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A - Min. elongation Lo = 5,65 √ So (%)
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19
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19
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19
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18
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18
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18
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Equivalent grades of steel S420N (SM490C )Warning! Only for reference
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EU
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USA
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Germany
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Japan
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France
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European old
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Italy
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Spain
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China
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Russia
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Inter
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EN
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-
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DIN,WNr
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JIS
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AFNOR
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EN
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UNI
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UNE
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GB
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GOST
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ISO
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S420N
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A255Gr.D
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StE420
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SM490A
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E420R
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FeE420KGN
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FeE420KGN
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AE420KG
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Q420D
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16G2AF
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E420
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A633E
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SM490C
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