DIN 17102 TStE255 fine grain structural steel

DIN 17102 TStE255 steel is a weldable normalized fine grain structural steel material. It belongs to low alloy steel.

Mechanical properties of TStE255 steel

Tensile Strength Rm for product thicknesses t,in mm MPa

Yield strength, ReH²) for product thicknesses t,in mm MPa min.

t≤70

70＜t≤85

85＜t≤100

100＜t≤125

125＜t≤150

t≤16

16＜t≤35

35＜t≤50

50＜t≤60

60＜t≤70

70＜t≤85

85＜t≤100

100＜t≤125

125＜t≤150

360~480

350~470

340~460

330~450

320~440

255

245

235

225

215

205

195

TStE255 steel composition

C ≤	Si ≤	Mn	P ≤	S ≤	N ≤	Al ≥	Cr ≤
0.16	≤0.40	0.50 to 1.30	0.030	0.025	0.020	0.020	0.30
Cu ≤	Mo ≤	Ni ≤	Nb ≤	Ti ≤	V ≤	Nb+Ti+V ≤
0.20	0.08	0.30	0.03	-	-	0.05

Application
DIN 17102 TStE 255 steel is high strength low alloy structural steel, mainly used in construction, bridges, ships, vehicles, petroleum storage tanks, engineering machinery and other structural parts that require excellent comprehensive mechanical properties and welding performance.