E275 1.0225 - EN 10305-2-2002

牌号	E275
欧标钢号	1.0225
对应标准	EN 10305-2-2002 精密仪器用钢管.交货技术条件.焊接冷拔钢管 Steel tubes for precision applications - Technical delivery conditions - Welded cold drawn tubes
归类	碳钢

E275 化学元素成分含量(%)

成分	C	Si	Mn	P	S
最小值	-	-	-	-	-
最大值	0.21	0.35	1.4	0.025	0.025

①Elements not included in this Table (but see footnote *) shall not be intentionally added to the steel without the agreement of the purchaser, except for elements which may be added for finishing the cast. All appropriate measures shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making process.

碳当量计算

E275 机械性能

交货状态	抗拉强度 σ_b Mpa	屈服点 σ_s Mpa	断后伸长率或延伸率 δ %
+C	≥560	≥0.8σb	≥5
+LC	≥510	≥0.7σb	≥8
+SR	≥510	≥375	≥12
+A	≥390	≥0.5σb	≥21
+N	410~550	* ≥275	≥21

① +C=Cold drawn / hard(冷拔/硬化)；② +LC =Cold drawn / soft(冷拔/软化)；③ +SR=Cold drawn and stress relieved(冷拔并去除应力)；④ +A=Annealed(退火)；⑤ +N=Normalized(正火)
*For tubes with outside diameter ≤ 30 mm and wall thickness ≤ 3 mm the ReH minimum values are 10 MPa lower than the values given in this Table.
注：表中σs为上屈服强度ReH

E275 对应不同标准

1	EN 10296-1-2003 机械和一般工程用焊接圆钢管.技术交货条件.非合金和合金钢管
	E275 1.0225
2	EN 10297-1-2003 机械和通用无缝钢管交货技术条件第1部分:非合金和合金钢管
	E275 1.0225
3	EN 10305-2-2002 精密仪器用钢管.交货技术条件.焊接冷拔钢管
	E275 1.0225

注：数据仅供参考！如有疑问，请填写"我要纠错"！