日本鋼鐵聯(lián)盟標準JFS2

1、日本鋼鐵聯(lián)盟標準JFS 標準號標準名稱原板區(qū)分類別牌號適用規(guī)格mm化學成分(熔煉分析)抗拉強度N/mm2下更厚度(mm)的上屈肥點或屈服強度N/mm2下列試樣及厚度(mm)的伸長率備注PS1.41.61.62.02.02.52.53.23.2試樣1.41.61.62.02.02.52.53.23.2JFSA3021(1996)汽車用合金化熱鍍鋅鋼板及鋼帶帶熱軋原板低碳鋼板JEH270C1.43.20.0500.0502702053251953151853051853051752955號縱向354936503751375138521. 本標準為由日本鋼鐵聯(lián)盟在日本各大鋼鐵企業(yè)與日本汽車行業(yè)間協(xié)調

2、后所制訂的適用于汽車結構用雙面等厚或差厚的及單面鍍的電鍍鋅鋼板及鋼帶標準。 2. 鍍層附著量 a、鋼板和鋼帶電鍍鋅量的代號及單面鍍鋅量的規(guī)定如下JEH270D0.0300.03519530518529517528517528516527537513852395339534054JEH270E175275165·26515525515525514524540534154425542554356·鋼板和鋼帶電鍍鋅量的代號及規(guī)定值如下： b、電鍍鋅鋼板及鋼帶可以是雙面等厚、雙面差厚以及單面鍍等不同類型，其表示方法如下：鋼板：鋼板上表面鍍鋅量/下表面鍍鋅量(例34/25)。鋼帶：鋼

3、帶外表面鍍鋅量/內表面鍍鋅量(例51/42)。當需要注明差度時加注字母D(例51D/42)。3、表面狀態(tài)區(qū)分及代號如下4、鈍化處理種類及代號如下：5、涂油種類及代號如下：6、化學成分指定、時效特性含意、表面質量等項按各自的原板標準規(guī)定。7、標準中詳細規(guī)定了尺寸、形狀允許偏差及重量計算方法。另，標準中規(guī)定了鋅層試驗方法，組批規(guī)則并列入了力學性能的的目標值和參考值，請參閱標準正文。通用型JEH310W0.0500.03031020532519531518530518530517529536503751385238523953JEH370W370235355225345215335215335205

4、32533463447354835483649JEH400W40025537524536523535523535522534531443245334634473548JEH440W44029541028540027539027539026538028412942304332453346高屈強比JEH490R1.62.30.0500.0304903755003654905號橫向22362337JEH540R54043057042056019332034JEH590R59046061045060017311832冷軋原板低碳鋼鋼板0.33.2時效特性270下列厚度(mm)的上屈服點或屈服強度N/m

5、m2下列試樣及厚度(mm)的伸長率0.30.40.40.80.81.01.03.20.51.01.01.60.30.40.40.60.60.80.81.01.01.21.21.61.63.2試樣JEC270C155275145265135255125245354536463747384839494050415號縱向JEC270D0.43.2延遲時效1352251252151152051.21.13949405041514252435344JEC270E非時效1302051201951101851.41.34151425243534454455546JEC270F0.42.3非時效1201851

6、101751001651.61.54353445445554656475748JEC260G非時效260110175100165901551.81.74555465647574858495950通用型JEC340W0.43.234020530519529518528533433444354536463747385號橫向JEC370W3702053051952951852853040314132423343344435JEC390W390245355235345225335294030413142423243334434JEC440W0.42.6440285390275380265370263827392840402941304231高屈強比JEC590R0.62.3590430580420570410560173217321833183318高深沖型JEC340P0.42.3非時效3401652551552451452351.41.3354536364617324637473848394940JEC370P非時效3701752651652551552451.41.33343344435453646374738JDC390P非時效39020530519