Steel
grade equivalents

Grades from different national systems are rarely identical. Comparisons between, for example, S355J2, A992 and Q355 are approximate: yield strength may be close while impact toughness, chemistry limits and thickness reductions differ, so substitution needs the engineer's agreement.

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§ 01

Index

Standards in Steel grade equivalents

4 of 4 entries

ASTM / EN comparison
Comparing ASTM and EN structural grades
A992 and S355 sit close on yield strength but differ on impact requirements, chemistry limits and thickness effects, so they are comparable rather than interchangeable.
United StatesSteel grade equivalentsCURRENTFree
EN grade system
EN structural steel grade designation system
How an EN designation is read: S for structural, the number as minimum yield strength in N/mm², then the sub-grade letters that set impact energy and test temperature.
European UnionSteel grade equivalentsCURRENTFree
GB / EN comparison
Comparing GB grades with EN and ASTM grades
Q355 and S355 share a nominal yield strength but differ in quality suffix meaning, impact testing and delivery condition, so certificates must be read rather than assumed.
ChinaSteel grade equivalentsCURRENTFree
IS / EN comparison
Comparing IS 2062 grades with EN and ASTM grades
E250 and E350 are often compared to S235 and S355, but quality class, impact testing and chemistry limits must be checked before substitution.
IndiaSteel grade equivalentsCURRENTFree

Verification

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