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Home Material GB /T 1591-2018
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Grade Q355ME
Corresponding Standard GB /T 1591-2018
High strength low alloy structural steels
Classification Alloy Steel
Properties Strength
Q355ME Chemical Element Composition Content (%)
Component C ⑤ Si Mn P ② S ② Cr Ni Cu Mo N Ti ③ V Nb Al ④
Minimum Value - - - - - - - - - - 0.006 0.01 0.01 0.015
Maximum Value 0.14 0.5 1.6 0.025 0.02 0.3 0.5 0.4 0.1 0.015 0.05 0.1 0.05 -
Q355ME Mechanical Properties
condition Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Impact Energy Absorption
KV2
J
Long products and flat materials; t≤16 470~630 ≥355 ≥22
Long products and flat materials; 16<t≤40 470~630 ≥345 ≥22
Long products and flat materials; 40<t≤63 450~610 ≥335 ≥22
Long and flat products; 63<t≤80 440~600 ≥325 ≥22
Long and flat products; 80<t≤100 440~600 ≥325 ≥22
Long Products and Flat Products; 100<t≤120ⓐ 430~590 ≥320 ≥22
Long products and flat products 20°C
Longitudinal: ≥63
Transverse: ≥40
Long products and flat products 0°C
Longitudinal: ≥55
Transverse: ≥34
Long products and flat products -20°C
Longitudinal: ≥47
Transverse: ≥27
Long products and flat products -40°C
Longitudinal: ≥31*
Transverse: ≥20*

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