E155 1.0033 - EN 10305-3-2023

Grade	E155
European Standard Steel Grade	1.0033
Corresponding Standard	EN 10305-3-2023 Steel Tubes for Precision Applications - Technical Delivery Conditions - Part 3: Welded Cold Sized Tubes
Classification	Carbon Steel

E155 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Al
Minimum Value	-	-	-	-	-	0.015
Maximum Value	0.11	0.35	0.7	0.025	0.025	-

E155 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %
Steel tube	+CR1①②	≥290		≥15
Steel tube	+A	≥260		≥28
Steel tube	+N	270~410	ReH ≥155	≥28

• +CR1：Welded and cold sized. Normally not heat treated
• +CR2：Welded and cold sized. Not heat treated
• +A：Soft annealed
• +N：Normalized

① For some strip grades, the degree of cold forming and the sizing of the as welded tube, may result in the yield strength being nearly be as high as the tensile strength. For calculation purposes yield strength values of R eH ≥ 0,7 R m are recommended for the +CR1 condition.
② The condition +CR2 may be specified with the same mechanical properties.

E155 Corresponding Standards(Same grade name, different standards)

1	EN 10296-1-2003
	E155 1.0033
2	EN 10305-2-2002
	E155 1.0033
3	EN 10305-3-2023
	E155 1.0033
4	EN 10305-2-2016
	E155 1.0033

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!