**標(biāo)準(zhǔn)GB / T1299-2014
標(biāo)準(zhǔn)目錄
1范圍................................ ............................... 1.
2，規(guī)范參考文件............................................. ............. 1.
3，分類............................................... .............................. 2.
4skh55鋼材對比 ，訂單內(nèi)容.............................................. ...................... 3.
5，尺寸，形狀，重量......................................... .. ............. 3.
5.1熱軋鋼桿和卷繞機(jī)尺寸，塑造和允許偏差...................
5.2尺寸，形狀和允許鍛鋼桿的偏差...........................
5.3尺寸，形狀和允許冷鋼桿的偏差........................... 7
5.4尺寸，形狀和允許的銀桿的偏差........................... 7
5.5加工送鋼尺寸，形狀和允許偏差.....................
5.6重量.............................................. .......................... 8.
6，技術(shù)要求.......................................... .... ...................... 8.
6.1等級和化學(xué)成分........................................... .. ............ 8.
6.2熔煉方法........................................... .... ................... 15.
6.3交貨狀態(tài).......................................... ...... ..................... 15.
6.4交貨硬度.......................................... ...... ..................... 15.
6.5低空組織.......................................... ... ....................... 20.
6.6微觀結(jié)構(gòu).......................................... ...... ..................21
6.7非金屬夾雜物............................................. ..................22
6.8碳酸根.......................................... ...... .....................二十三
6.9相對磁滲透........................................... ... ..................二十三
6.10超聲測試............................................. ....................24
6.11表面質(zhì)量........................................... .... .................. 25.
6.12特殊要求.............................................. .................... 25.
7，實(shí)驗(yàn)方法.......................................... .... ..................... 25.
8skh55對應(yīng)德標(biāo)，檢查規(guī)則............................................ ....................... 26.
8.1檢查和驗(yàn)收.......................................... .... ...................
8.2設(shè)置規(guī)則............................................ ..................... 26.
8.3抽樣量和采樣部分.......................................... .......
8.4重建和判斷規(guī)則........................................ ...... ........... 27.
9，包裝，徽標(biāo)和質(zhì)量證書....................................... ... ..... 27
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