The chemical composition of S355J2H seamless steel pipe

S355J2H seamless steel pipe is a kind of non alloy and fine grain structural steel pipe in BS EN 10210-1 standard. S355J2H steel is equivalent to Chinese Q345D material. It is required that the impact energy of S355J2H seamless steel pipe at - 20 ℃ is above 27J. S355J2H steel is a low alloy high-strength steel with good plasticity and impact toughness.

The chemical composition of S355J2H seamless steel pipe:

Grade	C	Si	Mn	P	S	Cr	Ni
S355J2H	≤0.22	≤0.55	≤1.60	≤0.025	≤0.020	≤0.25	≤0.50
	Cu	Nb	Ti	V	Mo	Al	B
	≤0.20	≤0.07	≤0.008	0.05~0.12	≤0.01	0.020~0.050	≤0.0005

The capital letter H in S355J2H stands for "hollow section", which represents the pipe of S355J2 steel. S355J2H seamless steel pipe and S355J0H seamless steel pipe are under same technical standard. Their difference is that they have different temperature requirements for impact energy. S355J0H seamless steel pipe: impact energy requirements at 0 ℃, energy ≥ 27J; S355J2H seamless steel pipe: impact energy requirements at - 20 ℃ ≥ 27J.

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