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Grade :
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321 壓力用焊接鋼管。不銹鋼管
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Number:
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X6CrNiTi18-10
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Classification:
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奧氏體不銹鋼
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Density:
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7.9 g/cm ?
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Standard:
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EN 10088-2:2005不銹鋼。通用耐腐蝕鋼片/板和帶材交貨技術條件
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EN 10088-3:2005不銹鋼。一般用途耐腐蝕鋼的半成品、棒材、線材、型材和光亮產品的交貨技術條件
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EN 10028-7:2007壓力用鋼制扁平產品。不銹鋼
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EN 10222-5:2000壓力用鋼鍛件。馬氏體、奧氏體和奧氏體-鐵素體不銹鋼
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EN 10216-5:2014壓力用無縫鋼管。技術交付條件。不銹鋼管
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EN 10217-7:2005壓力用焊接鋼管。不銹鋼管
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EN 10296-2:2005機械和一般工程用焊接圓鋼管。不銹鋼。技術交付條件
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EN 10253-3:2008對焊管件。無特殊檢驗要求的鍛造奧氏體和奧氏體-鐵素體（雙相）不銹鋼
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EN 10253-4:2008對焊管件。有特殊檢驗要求的鍛制奧氏體和奧氏體-鐵素體（雙相）不銹鋼
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EN 10272:2007壓力用不銹鋼棒
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EN 10263-5:2001冷鐓和冷擠壓用鋼條、棒材和線材。不銹鋼交貨技術條件
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EN 10250-4:2000一般工程用開口鋼模鍛件。不銹鋼
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EN 10297-2:2005機械和一般工程用無縫圓形鋼管。不銹鋼。技術交付條件
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EN 10088-1:2005不銹鋼。不銹鋼清單
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EN 10088-5:2009不銹鋼。建筑用耐腐蝕鋼棒材、棒材、線材、型材和光亮產品的交貨技術條件
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EN 10088-4:2009不銹鋼。建筑用耐腐蝕鋼片/板和帶材交貨技術條件
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Equivalent grades:
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Chemical composition % of steel X6CrNiTi18-10 (321 ): EN 10088-2-2005
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Ti = 5 * C to 0.7
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特定的硫含量范圍可以改善特定的財產。對于可加工性，建議并允許將硫含量控制在0.015%至0.030%之間。對于可焊性，建議并允許將硫含量控制在0.008%至0.030%之間。對于可極化性，建議將硫含量控制在最大0.015%。
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未經買方同意，不得故意將本表中未列出的元素添加到鋼材中，除非對鑄件進行精加工。
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C
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Si
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Mn
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Ni
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P
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S
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Cr
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Ti
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max 0.08
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max 1
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max 2
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9月12日
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max 0.045
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max 0.015
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17 - 19
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max 0.7
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Mechanical properties of steel X6CrNiTi18-10 (321 )
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Rm - Tensile strength (MPa) (+A)
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500-720
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Rm - Tensile strength (MPa) (+AT+C)
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810-850
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Rm - Tensile strength (MPa) (+AT)
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460-730
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Rp0.2 0.2% proof strength (MPa) (+A)
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190-225
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Rp0.2 0.2% proof strength (MPa) (+AT)
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180-200
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KV - Impact energy (J) transverse, (+A)
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+20°
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-196°
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60
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60
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KV - Impact energy (J) longitud., (+A)
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+20°
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100
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A - Min. elongation at fracture (%) (+A)
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30-40
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A - Min. elongation at fracture (%) longitud., (+AT)
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35
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Nominal diameter (mm):
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2 - 50
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Z - Reduction in cross section on fracture (%)
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60-65
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Brinell hardness (HB): (+A)
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215
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Brinell hardness (HB): (+AT)
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210
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