歡迎訪問(wèn)中科光析科學(xué)技術(shù)研究所官網(wǎng)!
免費(fèi)咨詢熱線
400-635-0567
低溫受壓零件用鐵素體和馬氏體鋼鑄件檢測(cè)項(xiàng)目報(bào)價(jià)???解決方案???檢測(cè)周期???樣品要求? |
點(diǎn) 擊 解 答??![]() |
本標(biāo)準(zhǔn)規(guī)定了鋼制閥門的壓力-溫度額度值、材料、設(shè)計(jì)要求、檢驗(yàn)與試驗(yàn)、標(biāo)志和對(duì)特殊壓力級(jí)閥門及限定壓力級(jí)閥門的要求等內(nèi)容。本標(biāo)準(zhǔn)適用于承壓件采用表1A和表1B給出的材料;閥體采用鑄造、鍛造滾壓、軋制和組焊加工;法蘭、螺紋和焊連接,以及對(duì)夾式和用于單法蘭安裝的閥門。本標(biāo)準(zhǔn)包括公稱壓力為Class系列和PN系列的閥門。本標(biāo)準(zhǔn)適用的鋼制閥門參數(shù)范圍為:a) Class系列閥門的壓力等級(jí)為Class150~Class4500,其中Class4500僅適用于焊連接閥門;PN系列閥門的壓力等級(jí)為PN2.5~PN400;b) 法蘭連接閥門的公稱尺寸不大于DN1250;c) 承插焊接閥門和螺紋連接閥門的公稱尺寸不大于DN65;d) 螺紋連接閥門的額定溫度不大于538 ℃,壓力等級(jí)不大于Class2500;e) 法蘭連接閥門僅適用于標(biāo)準(zhǔn)壓力級(jí),不適用于特殊壓力級(jí)和限定壓力級(jí)閥門;f) 法蘭連接閥門沒(méi)有中間壓力等級(jí)。
注意:按本部分選擇的耐蝕合金和其他合金,在油氣開(kāi)采中規(guī)定的含硫化氫環(huán)境里是抗開(kāi)裂的,但并不一定在所有的使用環(huán)境下都可避免開(kāi)裂。為預(yù)期的使用環(huán)境選擇合適的耐蝕合金和其他合金是設(shè)備使用者的責(zé)任。GB/T 20972的本部分給出了在油氣開(kāi)采及天然氣處理廠含硫化氫(H
本標(biāo)準(zhǔn)規(guī)定了離心式壓縮機(jī)及輔助設(shè)備的設(shè)計(jì)與制造技術(shù)要求、試驗(yàn)方法和檢驗(yàn)規(guī)則,以及包裝、運(yùn)輸?shù)葍?nèi)容。 本標(biāo)準(zhǔn)適用于輸送空氣或其它氣體的離心式壓縮機(jī)。 本標(biāo)準(zhǔn)不適用于氣體升壓值低于34kPa的通風(fēng)機(jī)和鼓風(fēng)機(jī),也不適用于JB 4113標(biāo)準(zhǔn)所指的一般煉油廠儀表空氣用整體齒輪增速組裝型離心式壓縮機(jī)。 賣方可提供變通設(shè)計(jì)(參閱7.1.1.13說(shuō)明差異的清單)。 經(jīng)買賣雙方同意后,也可采用相當(dāng)?shù)挠⒅瞥叽?、緊固件和法蘭。 本標(biāo)準(zhǔn)與訂貨合同相抵觸時(shí),抵觸部分應(yīng)以訂貨合同的規(guī)定為準(zhǔn)。
本規(guī)范適用于水電工程和其他工程鋼閘門的制造、安裝及驗(yàn)收。本規(guī)范規(guī)定了水電工程鋼閘門(包括攔污柵)制造、安裝及驗(yàn)收的技術(shù)要求。
本標(biāo)準(zhǔn)規(guī)定了承壓設(shè)備(鍋爐、壓力容器、壓力管道)的對(duì)接焊縫和角焊縫焊接工藝評(píng)定、耐蝕堆焊工藝評(píng)定、復(fù)合金屬材料焊接工藝評(píng)定、換熱管與管板焊接工藝評(píng)定和焊接工藝附加評(píng)定以及螺柱電弧焊工藝評(píng)定的規(guī)則、試驗(yàn)方法和合格指標(biāo)。本標(biāo)準(zhǔn)適用于氣焊、焊條電弧焊、埋弧焊、鎢極氣體保護(hù)焊、熔化極氣體保護(hù)焊、電渣焊、等離子弧焊、摩擦焊、氣電立焊和螺柱電弧焊等焊接方法。
本標(biāo)準(zhǔn)推薦了閥門主要零件選用的基本材料。本標(biāo)準(zhǔn)適用于灰鑄鐵、可鍛鑄鐵、球墨鑄鐵、銅合金、鈦合金、碳素鋼、高溫鋼、低溫鋼、不銹耐酸鋼制造的閥門。
本標(biāo)準(zhǔn)規(guī)定了閥門用低溫鋼鑄件(以下簡(jiǎn)稱“鑄件”)的技術(shù)要求、試驗(yàn)方法、檢驗(yàn)規(guī)則和標(biāo)志。本標(biāo)準(zhǔn)適用于-254℃~-29℃低溫條件下使用的閥門、法蘭及其他承壓的鑄件。
本標(biāo)準(zhǔn)規(guī)定了超(超)臨界機(jī)組金屬材料及結(jié)構(gòu)部件檢驗(yàn)的內(nèi)容和技術(shù)要求。本標(biāo)準(zhǔn)適用于超(超)臨界火電機(jī)組金屬材料及結(jié)構(gòu)部件的檢驗(yàn)。
1.1 This specification covers steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for low-temperature service.1.2 Several grades of ferritic steels and one grade of martensitic steel are covered. Selion of analysis will depend on design and service conditions (Note). The temperature shown is the lowest temperature at which the material ordinarily is required to meet the impact requirements of this specification (see Supplementary Requirement S22, Impact Test Temperatures). Users shod note that hardenability of some of the grades mentioned may restrict the maximum size at which the required mechanical properties are obtainable (see ).This specification covers the low-temperature requirements particarly pertinent for ferritic and martensitic steels. Certain of the grades of austenitic steel castings furnished in accordance with Specification A 351/A 351M have been found suitable for low-temperature service down to 300F [184C] and others down to 425F [254C]. These grades may be used when impact tested in accordance with Specification A 352/A 352M with energy levels and temperatures of test mutually agreed upon between the purchaser and the manufacturer. As a guide to the selion of energy levels and testing temperatures, shod be consted. 1.3 The values stated in either inch-pound un or SI un are to be regarded separately as . Within the text, the SI un are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may rest in nonconformance with the specification. Inch-pound un are applicable for material ordered to Specification A 352 and SI un for material ordered to Specification A 352M.
1.1 This specification covers steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for low-temperature service. 1.2 Several grades of ferritic steels and one grade of martensitic steel are covered. Selion of analysis will depend on design and service conditions (Note). The temperature shown is the lowest temperature at which the material ordinarily is required to meet the impact requirements of this specification (see Supplementary Requirement S22, Impact Test Temperatures). Users shod note that hardenability of some of the grades mentioned may restrict the maximum size at which the required mechanical properties are obtainable (see Appendix X1). GradeUsual Mium Testing Temperatures, x00B0;F [x00B0;C] LCAx2212;25 [x2013;32] LCBx2212;50 [x2013;46] LCCx2212;50 [x2013;46] LC1x2212;75 [x2013;59] LC2x2212;100 [x2013;73] LC2x2013;1x2212;100 [x2013;73] LC3x2212;150 [x2013;101] LC4x2212;175 [x2013;115] LC9x2212;320 [x2013;196] CA6NMx2212;100 [x2212;73] Note 18212;This specification covers the low-temperature requirements particarly pertinent for ferritic and martensitic steels. Certain of the grades of austenitic steel castings furnished in accordance with Specification A351/A351M have been found suitable for low-temperature service down to x2212;300x00B0;F [x2212;184x00B0;C] and others down to x2212;425x00B0;F [x2212;254x00B0;C]. These grades may be used when impact tested in accordance with Specification A352/A352M with energy levels and temperatures of test mutually agreed upon between the purchaser and the manufacturer. As a guide to the selion of energy levels and testing temperatures, Appendix X1 shod be consted. 1.3 The values stated in either inch-pound un or SI un are to be regarded separately as . Within the text, the SI un are show
This European specifies the following materials for the pressure bearing parts of shell boilers and equipment of shell boilers (e. g. valves), subjed to internal and external pressure including integral attachments (non pressure bearing parts): a) flat products (plate) and parts formed from flat products (e. g. shell, furnace, dished ends); b) tubes and parts formed from tubes (e. g. bending, elbows, reducers, fittings); c) forgings and cast products; d) bolting materials; e) welding consumables.
This International specifies requirements and gives recommendations for the design, manufacturing,testing and documentation of ball check, gate and plug valves for subsea application in offshore pipelinesystems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.This International is not applicable to valves for pressure ratings exceeding PN 420 (Class 2500).
This International specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for subsea application in offshore pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.This International is not applicable to valves for pressure ratings exceeding PN 420 (Class 2500).