Q235A angle steel is a certain elongation , Q235A angle steel having good weldability and hot workability . Q235A general use in the hot-rolled state , with its rolled steel , steel , steel , welded steel pipes used in the manufacture of various structures , bridges and generally unimportant machine parts, such as bolts , rod , rivets, rings and even bars and so on.
Q235A angle steel Chemical Composition
Carbon C: ≤0.22%
Si Si: ≤0.35%
Manganese Mn: ≤1.4%
Sulfur S: ≤0.050%
Phosphorus P: ≤0.045%
Chromium Cr: allow the residual content ≤0.030%
Ni: to allow the residual content ≤0.030%
Copper Cu: to allow the residual content of ≤0.030%
Note: deoxy method: F, Z
Q235A angle steel Mechanical Properties:
Tensile strength σb (MPa): 370 ~ 500 When> 60 ~ 100; ≥215::
yield strength σs (MPa):≤16 :≥235; >16～40 :≥225; >40～60 : ≥215; >60～100 : ≥215; > 100～150 : ≥195; >150 : ≥185 When> 60 ~ 100; ≥25::;
Elongation δ5 (%):: ≤40 when ≥26> 40 ~ 60 when ≥24;> 100 ~ 150 when: ≥22;> 150 ~ 200 when: ≥21 ;
Cold bending (bending 180 °): [vertical] ≤16 steel thickness, the apex diameter d = a; steel thickness> 16 to 100, the apex diameter d = 2a;
[Transverse] ≤16 steel thickness, the apex diameter d = 1.5a; steel thickness> 16 to 100, the apex diameter d = 2.5a;
Heat treatment and microstructure
Heat treatment: hot.
Microstructure: ferrite and pearlite.
Delivery status:
Generally hot-rolled (including controlled rolling) delivery. According to the requirements, by mutual agreement, can normalizing delivery.
Application
Applies ship building,engineer construction,mechanical manufacturing. Steel plate also can be made according to buyer's required.
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