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High strength low alloy steels are mainly used in the construction of bridges, containers, pylons and other architectural structures.
This range of steels is in compliance with EN 10149-2:2013. They are commonly referred to as high strength low alloy steels (HSLA).
All the grades are micro-alloyed steels with a low carbon content and are characterised by guaranteed minimum yield strength, controlled metallurgical purity and a fine grain structure.
High strength low alloy steels combine excellent mechanical properties, such as durability, fatigue resistance and impact resistance, with good formability and weldability. They are an excellent choice where weight reduction is a priority. Because of their high yield strength, they are frequently used as an alternative to structural steels.
High strength low alloy steels are mainly used in the construction of bridges, containers, pylons and other architectural structures.
EN 10149-2:2013 | SEW 092:1990 | NFA 36-231:1992 | BS 1449 | EU 149-2:1980 | SS | Old brand names | |
---|---|---|---|---|---|---|---|
S315MC EN 10149-2 | S315MC | QStE300TM | E315 D | 43F35 | |||
S355MC EN 10149-2 | S355MC | QStE360TM | E355 D | 46F40 | Fe E 355-TM | 42-00 | |
S420MC EN 10149-2 | S420MC | QStE420TM | E420 D | (50F45) | Fe E 420-TM | 52-00 | |
S460MC EN 10149-2 | S460MC | ||||||
S500MC EN 10149-2 | S500MC |
() Closest grade as no fully equivalent grade exists.
S315MC EN 10149-2 | |
---|---|
EN 10149-2:2013 | S315MC |
SEW 092:1990 | QStE300TM |
NFA 36-231:1992 | E315 D |
BS 1449 | 43F35 |
EU 149-2:1980 | |
SS | |
S355MC EN 10149-2 | |
---|---|
EN 10149-2:2013 | S355MC |
SEW 092:1990 | QStE360TM |
NFA 36-231:1992 | E355 D |
BS 1449 | 46F40 |
EU 149-2:1980 | Fe E 355-TM |
SS | 42-00 |
S420MC EN 10149-2 | |
---|---|
EN 10149-2:2013 | S420MC |
SEW 092:1990 | QStE420TM |
NFA 36-231:1992 | E420 D |
BS 1449 | (50F45) |
EU 149-2:1980 | Fe E 420-TM |
SS | 52-00 |
() Closest grade as no fully equivalent grade exists.
S460MC EN 10149-2 | |
---|---|
EN 10149-2:2013 | S460MC |
SEW 092:1990 | |
NFA 36-231:1992 | |
BS 1449 | |
EU 149-2:1980 | |
SS | |
S500MC EN 10149-2 | |
---|---|
EN 10149-2:2013 | S500MC |
SEW 092:1990 | |
NFA 36-231:1992 | |
BS 1449 | |
EU 149-2:1980 | |
SS | |
() Closest grade as no fully equivalent grade exists.
For the dimensions available, see Table A in data sheet H99 within the limits of the scope of the standard (maximum thickness 20 mm).
Direction | Thickness (mm) | Re (MPa) | Rm (MPa) | A 5.65√So (%) | Bending ratio (th) | |
---|---|---|---|---|---|---|
S315MC EN 10149-2 | L | 6 - 20 | ≥ 315 | 390 - 510 | ≥ 24 | - |
S355MC EN 10149-2 | L | 6 - 20 | ≥ 355 | 430 - 550 | ≥ 23 | - |
T | 6 - 20 | - | - | - | ≥ 0.5 | |
S420MC EN 10149-2 | L | 6 - 20 | ≥ 420 | 480 - 620 | ≥ 19 | - |
T | 6 - 20 | - | - | - | ≥ 0.5 | |
S460MC EN 10149-2 | L | 6 - 20 | ≥ 460 | 520 - 670 | ≥ 17 | - |
T | 6 - 20 | - | - | - | ≥ 1 | |
S500MC EN 10149-2 | L | 6 - 16 | ≥ 500 | 550 - 700 | ≥ 14 | - |
T | 6 - 16 | - | - | - | ≥ 1 |
All mechanical properties are guaranteed in thermomechanically rolled condition.
Direction | Thickness (mm) | S315MC EN 10149-2 | |
---|---|---|---|
Re (MPa) | L | 6 - 20 | ≥ 315 |
Rm (MPa) | L | 6 - 20 | 390 - 510 |
A 5.65√So (%) | L | 6 - 20 | ≥ 24 |
Direction | Thickness (mm) | S355MC EN 10149-2 | |
---|---|---|---|
Re (MPa) | L | 6 - 20 | ≥ 355 |
Rm (MPa) | L | 6 - 20 | 430 - 550 |
A 5.65√So (%) | L | 6 - 20 | ≥ 23 |
Bending ratio (th) | T | 6 - 20 | ≥ 0.5 |
Direction | Thickness (mm) | S420MC EN 10149-2 | |
---|---|---|---|
Re (MPa) | L | 6 - 20 | ≥ 420 |
Rm (MPa) | L | 6 - 20 | 480 - 620 |
A 5.65√So (%) | L | 6 - 20 | ≥ 19 |
Bending ratio (th) | T | 6 - 20 | ≥ 0.5 |
Direction | Thickness (mm) | S460MC EN 10149-2 | |
---|---|---|---|
Re (MPa) | L | 6 - 20 | ≥ 460 |
Rm (MPa) | L | 6 - 20 | 520 - 670 |
A 5.65√So (%) | L | 6 - 20 | ≥ 17 |
Bending ratio (th) | T | 6 - 20 | ≥ 1 |
Direction | Thickness (mm) | S500MC EN 10149-2 | |
---|---|---|---|
Re (MPa) | L | 6 - 16 | ≥ 500 |
Rm (MPa) | L | 6 - 16 | 550 - 700 |
A 5.65√So (%) | L | 6 - 16 | ≥ 14 |
Bending ratio (th) | T | 6 - 16 | ≥ 1 |
All mechanical properties are guaranteed in thermomechanically rolled condition.
Notes | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Al (%) | Nb (%) | V (%) | Ti (%) | |
---|---|---|---|---|---|---|---|---|---|---|
S315MC EN 10149-2 | ≤ 0.12 | ≤ 1.30 | ≤ 0.025 | ≤ 0.020 | ≤ 0.50 | ≥ 0.015 | ≤ 0.090 | ≤ 0.20 | ≤ 0.150 | |
S355MC EN 10149-2 | ≤ 0.12 | ≤ 1.50 | ≤ 0.025 | ≤ 0.020 | ≤ 0.50 | ≥ 0.015 | ≤ 0.090 | ≤ 0.20 | ≤ 0.150 | |
S420MC EN 10149-2 | ≤ 0.12 | ≤ 1.60 | ≤ 0.025 | ≤ 0.015 | ≤ 0.50 | ≥ 0.015 | ≤ 0.090 | ≤ 0.20 | ≤ 0.150 | |
S460MC EN 10149-2 | ≤ 0.12 | ≤ 1.60 | ≤ 0.025 | ≤ 0.015 | ≤ 0.50 | ≥ 0.015 | ≤ 0.090 | ≤ 0.20 | ≤ 0.150 | |
S500MC EN 10149-2 | ≤ 0.12 | ≤ 1.70 | ≤ 0.025 | ≤ 0.015 | ≤ 0.50 | ≥ 0.015 | ≤ 0.090 | ≤ 0.20 | ≤ 0.150 |
The above chemical properties are based on cast analysis data.
The total Nb, V and Ti content should not exceed 0.22%.
C (%) | ≤ 0.12 |
---|---|
Mn (%) | ≤ 1.30 |
P (%) | ≤ 0.025 |
S (%) | ≤ 0.020 |
Si (%) | ≤ 0.50 |
Al (%) | ≥ 0.015 |
Nb (%) | ≤ 0.090 |
V (%) | ≤ 0.20 |
Ti (%) | ≤ 0.150 |
C (%) | ≤ 0.12 |
---|---|
Mn (%) | ≤ 1.50 |
P (%) | ≤ 0.025 |
S (%) | ≤ 0.020 |
Si (%) | ≤ 0.50 |
Al (%) | ≥ 0.015 |
Nb (%) | ≤ 0.090 |
V (%) | ≤ 0.20 |
Ti (%) | ≤ 0.150 |
C (%) | ≤ 0.12 |
---|---|
Mn (%) | ≤ 1.60 |
P (%) | ≤ 0.025 |
S (%) | ≤ 0.015 |
Si (%) | ≤ 0.50 |
Al (%) | ≥ 0.015 |
Nb (%) | ≤ 0.090 |
V (%) | ≤ 0.20 |
Ti (%) | ≤ 0.150 |
C (%) | ≤ 0.12 |
---|---|
Mn (%) | ≤ 1.60 |
P (%) | ≤ 0.025 |
S (%) | ≤ 0.015 |
Si (%) | ≤ 0.50 |
Al (%) | ≥ 0.015 |
Nb (%) | ≤ 0.090 |
V (%) | ≤ 0.20 |
Ti (%) | ≤ 0.150 |
C (%) | ≤ 0.12 |
---|---|
Mn (%) | ≤ 1.70 |
P (%) | ≤ 0.025 |
S (%) | ≤ 0.015 |
Si (%) | ≤ 0.50 |
Al (%) | ≥ 0.015 |
Nb (%) | ≤ 0.090 |
V (%) | ≤ 0.20 |
Ti (%) | ≤ 0.150 |
The above chemical properties are based on cast analysis data.
The total Nb, V and Ti content should not exceed 0.22%.
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All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.