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                中國電建集團指定焊接材料

                11位焊接工程師 專(zhuān)注50年

                你所在位置:泰申電力>產(chǎn)品中心>優(yōu)勢推薦>SD-TIG-R31鎢極氬弧焊絲
                SD-TIG-R31鎢極氬弧焊絲
                下載材質(zhì)證明書(shū)編輯:網(wǎng)絡(luò )信息部   發(fā)布時(shí)間:2018-01-08 09:47:14   來(lái)源:泰申電力   人氣:7989

                符合(相當)相關(guān)標準型號:

                GB/T 8110 ER55-G ISO 21952-B:2012 W55 M G 執行企業(yè)標準Q31/0115000161C012-2015

                說(shuō)明:SD-TIG-R31是含Cr1.25%-Mo0.5%-V的低合金耐熱鋼的鎢極氬弧焊絲。焊縫金屬具有優(yōu)良的塑性和韌性。焊縫成形美觀(guān),全位置焊接性能良好。通常焊接時(shí),焊件預熱和保持道間溫度250-300℃,焊后進(jìn)行715-745℃回火處理。

                用途:用于焊接工作溫度在580℃以下鍋爐受熱面管子及540℃以下蒸汽管道及高壓容器、石油精煉設備(如12CrMoV、T/P11等鋼)的手工鎢極氬弧焊打底及全氬焊。


                熔敷金屬化學(xué)成分(%)

                元素CMnSiCrMo
                標準值0.05-0.120.75-1.050.45-0.701.10-1.400.45-0.65
                例值0.0740.850.651.200.55
                VNiSPCu
                0.20-0.35≤0.30≤0.010≤0.020≤0.30
                0.250.010.0070.0140.13


                熔敷金屬力學(xué)性能(焊后730℃±15℃*2h回火處理)

                試驗項目抗拉強度 Rm/MPa屈服強度Rp0.2/MPa伸長(cháng)率 A/%室溫沖擊吸收功 KV2/J
                標準值

                ≥540

                ≥440≥17

                ≥47

                例值63050524182


                焊絲規格

                直徑/mm1.01.21.62.02.5


                X射線(xiàn)探傷:Ⅰ級

                注意事項:

                1. 1、焊前必須對焊件清除鐵銹、鍍層、油污、水分和雜質(zhì)等污染物。

                2. 2、焊接時(shí)環(huán)境風(fēng)速應小于1m/s。有風(fēng)處應采取擋風(fēng)措施焊接。

                3. 3、應使用焊接用的氬氣,Ar≥99.99%。

                4. 4、當焊縫背面充氬氣時(shí),氣體流量應是正面的1/2,以免形成背面正壓而產(chǎn)生根部未焊透。

                本文關(guān)鍵詞:SD-TIG-R31鎢極氬弧焊絲


                上海泰申電力焊材

                泰申電力手工焊條氣保焊絲氬弧焊絲埋弧焊絲埋弧焊劑優(yōu)勢推薦產(chǎn)品中心新聞專(zhuān)題

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