Technical condition
Q195
Off grade class, its chemistry composition and mechanical function (σs, σb, δwith cold turn) all must assure.
Wait for a product to rolling thin plate and wire rod, its are mechanical the assurance of function condition, can mix according to product characteristic use requirement, set separately in relevant specification.
A1
B1
The mechanical function that A1 steel assures (σs, σb, δwith cold turn) , the chemical composition that B1 steel assures and Q195 are identical
The cold curved experiment of A1 steel is add assure a condition
A steel is done not have special kind of steel
Q215
Assign grade of A, B, chemical composition of the regulation and mechanical function all must assure
Q 215A does not make concussion test
Q215B must make room temperature pound an experiment, with V breach sample
A2
C2
The mechanical function that A2 steel assures, the chemical composition that C2 steel assures reachs mechanical function, basic and as identical as Q215 steel
Q235
Assign grade of A, B, C, D, chemical composition of the regulation and mechanical function all must assure
Q 235A does not make concussion test
Q235B must make room temperature pound an experiment, with V breach sample
Q 235C, Q235D is used at important solder structure, former make concussion test at 0 O C, latter at - 20 O C makes concussion test, sample, sample is Alexandrine
A3
C3
The mechanical function that A3 steel assures, the chemical composition that C3 steel assures reachs mechanical function, basic and as identical as Q235 steel
A3 steel is add make sure normal temperature pounds an experiment, with U breach sample
C3 steel is add assure normal temperature or - 20 O C pounds an experiment, sample is Alexandrine
Q255
Assign grade of A, B, chemical composition of the regulation and mechanical function all must assure
Q 255A does not make concussion test
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