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DIN2391钢管标准

来源:动视网 责编:小OO 时间:2025-09-26 18:09:57
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DIN2391钢管标准

ThisStandardappliestoseamlessprecisionsteeltubes;and,incompliancewithISO/DIS3304,thosetubedimensionshaveeenselectiedfromtherangeofmanufacturaletuedimensionswhicharemainlyusedasdesignelementsIftubeshavingthetolerancesandareproducedaccordingtothetechn
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导读ThisStandardappliestoseamlessprecisionsteeltubes;and,incompliancewithISO/DIS3304,thosetubedimensionshaveeenselectiedfromtherangeofmanufacturaletuedimensionswhicharemainlyusedasdesignelementsIftubeshavingthetolerancesandareproducedaccordingtothetechn
This Standard applies to seamless precision steel tubes; and, in compliance with ISO/DIS 3304, those tube dimensions have een selectied from the range of manufactura le tu e dimensions which are mainly used as design elements

If tubes having the tolerances and are produced according to the technical conditions of deivery as specified in this Standard are to e used as pipelines, then the dimensions specified in DIN 2448 may from time to time be used. These tubes must be ordered according to quality grade C. 

GradeMfg. ProcessChemical composition

 

CSiMnPSNiCrMoOthers
St30SiS0.10Max0.30Max≤0.550.040Max0.040Max----
St30A1S0.10Max0.05Max≤0.550.040Max0.040Max---Al deoxydized
St35S0.17Max0.35Max≥0.400.050Max0.050Max----
St45S0.21Max0.35Max≥0.400.050Max0.050Max----
St52S0.22Max0.55Max≥1.600.050Max0.050Max----
 

①Cold-finished/hard ②Cold-finished/soft ③Annealed ④Normalized 

 

Grade 

 Material 

number

Tensile Test MPa or N/mm2 

Remaks(Similar to JIS)Possibility Temperature
Min Yield pointTensile Strength
St30Si1.0211-400Min(STKM11)
-355Min
-285Min
215295~420
St30Al1.0212-400Min(STKM11)
-355Min
-285Min
215295~420
St351.0308-440Min(STC38)
-370Min
-315Min
235340~470
St451.0408-540Min(STKM13)
-470Min
-390Min
255440~570
St521.0580-590Min(STKM19)
-540Min
-490Min
350490~630

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DIN2391钢管标准

ThisStandardappliestoseamlessprecisionsteeltubes;and,incompliancewithISO/DIS3304,thosetubedimensionshaveeenselectiedfromtherangeofmanufacturaletuedimensionswhicharemainlyusedasdesignelementsIftubeshavingthetolerancesandareproducedaccordingtothetechn
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