DILLIMAX 690 Extra Tough (EN 1.8988)

DILLIMAX 690 Extra Tough (EN 1.8988) introduction

DILLIMAX 690 is a high strength quenched and tempered, fine grained structural (through sufficient aluminium content.) steel with a minimum yield
strength of 690 MPa (100 ksi) in its delivery condition (referring to the lowest thickness range).

Equivalent material: EN S690QL1, EN 1.8988, DIN S690QL1, DIN 1.8988

DILLIMAX 690 Extra Tough (EN 1.8988) general

Property Value Comment
Carbon equivalent (CET) Carbon equivalent (CET) of 0.35 [-] for thickness t ≤ 25 mm
- Carbon equivalent (CET) of 0.38 [-] for thickness 25 < t ≤ 50 mm
- Carbon equivalent (CET) of 0.4 [-] for thickness 50 < t ≤ 100 mm
- Carbon equivalent (CET) of 0.43 [-] for thickness 100 < t ≤ 150 mm
- Carbon equivalent (CET) of 0.45 [-] for thickness 150 < t ≤ 200 mm
Carbon equivalent (CEV) Carbon equivalent (CEV) of 0.5 [-] max. value according to DILLIMAX data sheet for thickness t ≤ 25 mm
- Carbon equivalent (CEV) of 0.55 [-] max. value according to DILLIMAX data sheet for thickness 25 < t ≤ 50 mm
- Carbon equivalent (CEV) of 0.65 [-] max. value for thickness t ≤ 25 mm & 25 < t ≤ 50 mm according to EN 10025-6
- Carbon equivalent (CEV) of 0.67 [-] max. value according to DILLIMAX data sheet for thickness 50 < t ≤ 100 mm
- Carbon equivalent (CEV) of 0.75 [-] max. value according to DILLIMAX data sheet for thickness 100 < t ≤ 150 mm
- Carbon equivalent (CEV) of 0.77 [-] max. value for thickness 50 < t ≤ 100 mm according to EN 10025-6
- Carbon equivalent (CEV) of 0.78 [-] max. value according to DILLIMAX data sheet for thickness 150 < t ≤ 200 mm
- Carbon equivalent (CEV) of 0.83 [-] max. value for thickness 100 < t ≤ 150 mm & 150 < t ≤ 200 mm according to EN 10025-6
Carbon equivalent note -

DILLIMAX 690 Extra Tough (EN 1.8988) chemical

Property Value Comment
Boron Boron of 0.004 % max.
Carbon Carbon of 0.2 % max.
Chromium Chromium of 1.5 % max.
Iron -
Manganese Manganese of 1.6 % max.
Molybdenum Molybdenum of 0.6 % max.
Nickel Nickel of 1.8 % max.
Niobium Niobium of 0.1 % max. V+Nb
Phosphorus Phosphorus of 0.018 % max.
Silicon Silicon of 0.5 % max.
Sulfur Sulfur of 0.005 % max.
Vanadium Vanadium of 0.1 % max. V+Nb

DILLIMAX 690 Extra Tough (EN 1.8988) electrical

Property - -
Application areas
Cold Forming Position of bending line to rolling direction Minimum bending radius Minimum die width
Transverse direction 2 t 7 t
Longitudinal direction 3 t 9 t

DILLIMAX 690 Extra Tough (EN 1.8988) mechanical

Property Temperature Value Testing Standard Comment
Charpy impact energy, V-notch -60 °C Charpy impact energy, V-notch of 27 J - average of 3 tests according to EN 10025-6 | transverse specimens
- -60 °C Charpy impact energy, V-notch of 30 J - average of 3 tests according to EN 10025-6
Elongation - Elongation of 14 % - min. for plate thickness t ≤ 200 mm | transverse specimens, A5
- - Elongation of 15 % ASTM A370 min. for plate thickness t ≤ 200 mm | transverse specimens, A2
Tensile strength - Tensile strength of 710 - 880 MPa EN ISO 6892-1 for plate thickness 150 < t ≤ 200 mm | transverse specimens
- - Tensile strength of 720 - 900 MPa EN ISO 6892-1 for plate thickness 100 < t ≤ 150 mm | transverse specimens
- - Tensile strength of 770 - 930 MPa EN ISO 6892-1 for plate thickness up to 100 mm | transverse specimens
Yield strength - Yield strength of 630 MPa EN ISO 6892-1 min. ReH for plate thickness 100 < t ≤ 200 mm | transverse specimens
- - Yield strength of 670 MPa EN ISO 6892-1 min. ReH for plate thickness 65 < t ≤ 100 mm | transverse specimens
- - Yield strength of 690 MPa EN ISO 6892-1 min. ReH for plate thickness t ≤ 65 mm | transverse specimens

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