截(jie)面(mian)收縮率在15%以上。鋼(gang)(gang)板(ban)(ban)(ban)沿厚度方向的(de)受力(li)性(xing)(xing)能(neng)(neng)(neng)(主要為延性(xing)(xing)性(xing)(xing)能(neng)(neng)(neng))稱(cheng)為Z向性(xing)(xing)能(neng)(neng)(neng)。鋼(gang)(gang)板(ban)(ban)(ban)的(de)Z向性(xing)(xing)能(neng)(neng)(neng)可(ke)通過做(zuo)試樣拉(la)伸試驗得到，一般用斷面(mian)收縮率來度量。  中國生產的(de)Z向鋼(gang)(gang)板(ban)(ban)(ban)的(de)標(biao)志(zhi)是在母(mu)(mu)級鋼(gang)(gang)鋼(gang)(gang)號后面(mian)加上Z向鋼(gang)(gang)板(ban)(ban)(ban)等級標(biao)志(zhi)Z15、Z25、Z35，Z字(zi)后面(mian)的(de)數(shu)字(zi)為截(jie)面(mian)收縮率的(de)指標(biao)(%)。Q345R是鍋爐容(rong)器(qi)板(ban)(ban)(ban)，牌(pai)號表示(shi)方法(fa)：低(di)合金高強度結(jie)構鋼(gang)(gang)的(de)牌(pai)號用屈服強度值“屈”字(zi)和壓力(li)容(rong)器(qi)“容(rong)”字(zi)的(de)漢(han)語拼音首(shou)位字(zi)母(mu)(mu) 表示(shi)。例如：Q345R。Q—“屈”漢(han)語拼音首(shou)位字(zi)母(mu)(mu)。345—屈服強度值。R：“容(rong)”漢(han)語拼音首(shou)位字(zi)母(mu)(mu)。

       淬火(huo)+回火(huo)的調質(zhi)狀(zhuang)態交貨。當然也可(ke)根據需求(qiu)附(fu)加像(xiang)探傷標準、探傷等級、Z向性能、添加特殊(shu)合金元素等技術要求(qiu)，Q345R壓力(li)容器鋼(gang)板(ban)訂購價，但需在供需雙方溝通(tong)過后，達(da)成一致，并需在合同中注明體現(xian)出來。  五、SA533GrBCL1鋼(gang)板(ban)熱處理要求(qiu)：SA533GrBCL1鋼(gang)板(ban)應進行熱處理，將其加熱到(dao)1550-1800°F(845-980°C)范圍內的某一適(shi)宜溫度

       高附加(jia)(jia)值的鍋(guo)爐(lu)和(he)(he)(he)(he)(he)壓(ya)(ya)力容(rong)(rong)(rong)器用鋼(gang)板(ban)市場，Q345R壓(ya)(ya)力容(rong)(rong)(rong)器鋼(gang)板(ban)報價，著手鍋(guo)爐(lu)和(he)(he)(he)(he)(he)壓(ya)(ya)力容(rong)(rong)(rong)器用鋼(gang)板(ban)開(kai)發和(he)(he)(he)(he)(he)推廣(guang)，并按照“研發一批(pi)、儲備一批(pi)、認證一批(pi)、推廣(guang)一批(pi)”的產銷研工(gong)作思路，當年就研發出部分(fen)鍋(guo)爐(lu)和(he)(he)(he)(he)(he)壓(ya)(ya)力容(rong)(rong)(rong)器用鋼(gang)板(ban)，當年就開(kai)始申請(qing)鍋(guo)爐(lu)和(he)(he)(he)(he)(he)壓(ya)(ya)力容(rong)(rong)(rong)器用鋼(gang)板(ban)認證，惠州Q345R壓(ya)(ya)力容(rong)(rong)(rong)器鋼(gang)板(ban)，當年就開(kai)始占領部分(fen)容(rong)(rong)(rong)器板(ban)市場，并隨著鍋(guo)爐(lu)和(he)(he)(he)(he)(he)壓(ya)(ya)力容(rong)(rong)(rong)器鋼(gang)板(ban)的銷售，不(bu)斷加(jia)(jia)大高難度(du)鋼(gang)種(zhong)開(kai)發