SS stand for Structural Steel,400 for grade, AISI 1018, En 1a, St37 are equivalent steel.
The closest Indian grade is E 250 Quality A by IS 2062
no
1042/1045
CK22 is the equivalent DIN grade for EN3A
1020
EN 10027 is described for the designation system of steel. So no matched with other nation's steel grade.
in JIS (Japanese) "SS" stands for structural steel, and 400 grade which is similar to AISI 1018.
aisi equial toq-235a
Equivalent material e36
no
API 5l X52
1042/1045
CK22 is the equivalent DIN grade for EN3A
EH 36
1020
q345b is equivalent to grade 50
REQUIRED EQUIVALENT GRADE FOR THIS GRADE sa 516 gr 70 .
SPFH 540 In JIS & FeE355 in ISO