石家(jia)莊方(fang)管廠家(jia)彈(dan)性(xing)(xing)(xing)模(mo)(mo)(mo)量(liang)(liang)(liang)是(shi)(shi)(shi)工(gong)程(cheng)材(cai)料(liao)重要(yao)的(de)(de)性(xing)(xing)(xing)能(neng)參數(shu)，從宏(hong)觀(guan)(guan)(guan)角(jiao)度(du)(du)來說，彈(dan)性(xing)(xing)(xing)模(mo)(mo)(mo)量(liang)(liang)(liang)是(shi)(shi)(shi)衡(heng)量(liang)(liang)(liang)物體抵抗彈(dan)性(xing)(xing)(xing)變(bian)形能(neng)力大(da)(da)(da)小(xiao)的(de)(de)尺度(du)(du)，從微觀(guan)(guan)(guan)角(jiao)度(du)(du)來說，則是(shi)(shi)(shi)原子、離子或分子之間鍵(jian)合強(qiang)度(du)(du)的(de)(de)反映。凡影響鍵(jian)合強(qiang)度(du)(du)的(de)(de)因素均能(neng)影響材(cai)料(liao)的(de)(de)彈(dan)性(xing)(xing)(xing)模(mo)(mo)(mo)量(liang)(liang)(liang)，如鍵(jian)合方式、晶體結構、化(hua)學(xue)成分、微觀(guan)(guan)(guan)組織(zhi)、溫(wen)度(du)(du)等。因合金成分不(bu)(bu)同(tong)、熱(re)處(chu)(chu)理狀態不(bu)(bu)同(tong)、冷(leng)塑性(xing)(xing)(xing)變(bian)形不(bu)(bu)同(tong)等，金屬材(cai)料(liao)的(de)(de)楊氏模(mo)(mo)(mo)量(liang)(liang)(liang)值會(hui)有5%或者(zhe)更大(da)(da)(da)的(de)(de)波動。但是(shi)(shi)(shi)總體來說，金屬材(cai)料(liao)的(de)(de)彈(dan)性(xing)(xing)(xing)模(mo)(mo)(mo)量(liang)(liang)(liang)是(shi)(shi)(shi)一(yi)個對組織(zhi)不(bu)(bu)敏(min)感(gan)的(de)(de)力學(xue)性(xing)(xing)(xing)能(neng)指標，合金化(hua)、熱(re)處(chu)(chu)理（纖(xian)維(wei)組織(zhi)）、冷(leng)塑性(xing)(xing)(xing)變(bian)形等對彈(dan)性(xing)(xing)(xing)模(mo)(mo)(mo)量(liang)(liang)(liang)的(de)(de)影響較小(xiao)，溫(wen)度(du)(du)、加載速(su)率等外在(zai)因素對其(qi)影響也(ye)不(bu)(bu)大(da)(da)(da)，所以一(yi)般工(gong)程(cheng)應(ying)用中(zhong)都把(ba)彈(dan)性(xing)(xing)(xing)模(mo)(mo)(mo)量(liang)(liang)(liang)作為常數(shu)。

彈(dan)(dan)(dan)(dan)性(xing)模量可(ke)視為(wei)衡量石(shi)家莊(zhuang)鋼材(cai)(cai)經銷商材(cai)(cai)料(liao)產(chan)生(sheng)彈(dan)(dan)(dan)(dan)性(xing)變形(xing)難易程度(du)的(de)指標(biao)，其值(zhi)越大(da)(da)，使(shi)材(cai)(cai)料(liao)發(fa)(fa)生(sheng)一定彈(dan)(dan)(dan)(dan)性(xing)變形(xing)的(de)應(ying)力(li)(li)也越大(da)(da)，即(ji)材(cai)(cai)料(liao)剛度(du)越大(da)(da)，亦即(ji)在(zai)(zai)一定應(ying)力(li)(li)作(zuo)用下，發(fa)(fa)生(sheng)彈(dan)(dan)(dan)(dan)性(xing)變形(xing)越小。彈(dan)(dan)(dan)(dan)性(xing)模量E是指材(cai)(cai)料(liao)在(zai)(zai)外(wai)力(li)(li)作(zuo)用下產(chan)生(sheng)單(dan)位彈(dan)(dan)(dan)(dan)性(xing)變形(xing)所需(xu)要的(de)應(ying)力(li)(li)。它是反映材(cai)(cai)料(liao)抵抗彈(dan)(dan)(dan)(dan)性(xing)變形(xing)能力(li)(li)的(de)指標(biao)，相當于普(pu)通彈(dan)(dan)(dan)(dan)簧(huang)中的(de)剛度(du)。