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EN 10027-1 Designation systems for steel Part 1: Steel names - Coggle…
EN 10027-1
Designation systems for steel
Part 1: Steel names
Category 1: Application and/or mechanical properties
Section 7.3
Table 1: Structural steels
Table 2: Steels for pressure purposes
Table 3: Steels for line pipe
Table 4: Steels for engineering
Table 5: Steels for reinforcing concrete
Table 6: Steels for prestressing concrete
Table 7: Steels for or in the form of rails
Table 8: Flat products for cold forming (except Table 9)
Table 9: High strength steel flat products for cold forming
Table 10:: Tin mill products (steel products for packaging)
Table 11: Electrical steels
Category 2: Chemical compositions
Section 7.4
Table 12:
Non-alloy steels (except free cutting steels) with an average manganese content < 1 %
Table 13:
Non-alloy steels with an average manganese content ≥ 1 %,
Non-alloy free-cutting steels and alloy steels (except high speed steels) where the content, by weight, of every average alloying element is < 5 %
Table 14:
Stainless steels and other alloy steels (except high speed steels) where the average content by weight of at least one alloying element is ≥ 5 %
Table 15:
High speed steels
Structure of names
Principal symbols
As per their category and tables
Preceded by G for steel casting
Preceded by PM for powder metallurgy
Additional symbols
Group 1
From the respective tables
Group 2
Follows group 1,
From the respective tables
Additional symbols
From tables 16, 17 & 18
Separated from preceding symbols by "+" sign
Can be used after steel numbers as well
Table 16:
Symbols for steel products indicating special requirements
Table 17:
Symbols for type of coating
Table 18:
Symbols for heat treatment condition