Q255 A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q255 A

This page is mainly introduced the Q255 A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q255 A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Mechanical properties

The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | than 16:255
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 16 ~ 40:245
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 40 to 60:235
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 60 ~ 100:225
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 100 ~ 150:215
The yield point σ s/MPa (no less) than in steel different thickness or diameter/mm | > 150:205

Tensile strength σ b/MPa: 410 ~ 550
Elongation δ 5 / (%) (no less) than in steel different thickness or diameter/mm | than 16:24
Elongation δ 5 / (%) (no less) than in steel different thickness or diameter/mm | > 16 ~ 40:23
Elongation δ 5 / (%) (no less) than in steel different thickness or diameter/mm | > 40 to 60:22
Elongation δ 5 / (%) (no less) than in steel different thickness or diameter/mm | > 60 ~ 100:21
Elongation δ 5 / (%) (no less) than in steel different thickness or diameter/mm | > 100 ~ 150:20
Elongation δ 5 / (%) (no less) than in steel different thickness or diameter/mm | > 150:19
Impact test (1) | temperature / ℃ :-
Impact test (1) | impact absorption power AKV/J:-

The cold bending property

Sample direction:-
180 ° of cold bending test b = 2 a different thickness or in steel diameter/mm | than 60: d = 2 a
180 ° of cold bending test b = 2 a different thickness or in steel diameter/mm | > 60 ~ 100: d = 3 a
180 ° of cold bending test b = 2 a different thickness or in steel diameter/mm | > 100 ~ 200: d = 3.5 a

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