| Grade : | S690Q | ||
| Number: | 1.8931 | ||
| Classification: | Alloy special steel with specified minimum values of impact energy at temperatures not lower than -20 °C | ||
| Standard: |
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EN 10025-2 S690Q sheet and plates are high-strength structural steel with the composition of carbon, manganese, chromium, and molybdenum, providing excellent weldability and toughness. These plates have superior resistance to impact, fatigue, and wear. The key benefits are better durability, light construction, and less material consumption, which makes them ideal for construction, bridges, cranes, and industrial machinery under heavy loads.
Chemical composition % of steel S690Q (1.8931): EN 10025-6-2004
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B | CEV |
| max 0.2 | max 0.8 | max 1.7 | max 2 | max 0.025 | max 0.015 | max 1.5 | max 0.7 | max 0.12 | max 0.015 | max 0.06 | max 0.05 | max 0.5 | max 0.15 | max 0.005 | max 0.83 |
Mechanical properties of steel S690Q (1.8931)
| Nominal thickness (mm): | 3 - 50 | 50 - 100 | 100 - 150 |
| Rm - Tensile strength (MPa) | 770-940 | 760-930 | 710-900 |
| Nominal thickness (mm): | 3 - 50 | 50 - 100 | 100 - 150 |
| ReH - Minimum yield strength (MPa) | 690 | 650 | 630 |
| KV - Impact energy (J) longitud., | 0° 40 |
-20° 30 |
| A - Min. elongation Lo = 5,65 √ So (%) | 14 |
equivalent Grades of steel S690Q (1.8931)
| EU EN |
USA - |
Germany DIN,WNr |
France AFNOR |
Sweden SS |
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| S690Q |
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Performance characteristics of S690Q high strength steel
High toughness: S690Q high tensile steel can still maintain good performance under low temperature or impact load, effectively absorb energy and reduce the risk of brittle fracture.
Good welding performance: S690Q high strength low alloy steel can match a variety of welding methods, and the welded joint has high strength and good toughness.
Excellent fatigue resistance: S690Q low alloy steel material can withstand repeated stress cycles and reduce the occurrence of fatigue cracks.
Corrosion resistance: After special anti-corrosion treatment, S690Q low alloy steel has good corrosion resistance.
GNEE steel's range of HSLA steels (high strength low alloy) are engineered to promote excellent high yield characteristics which in turn provide an extremely cost effective option for buyers. In many cases, the use of HSLA steel will reduce the volume of material required in a project without compromising the quality and safety of the installation because it allows the customer to reduce the material thickness.
specification of S690Q high strength steel
| Item | Quenched And Tempered Structural Steel Plate |
|---|---|
| Material | QUARD, SUMIHARD, BRINAR, DUROSTAT, DILLIDUR, JFE EVERHARD |
| Thickness | 3 – 200mm |
| Width | 500 – 3000mm |
| Length | 1000 – 12000mm |
| Heat Treatment | N, Q+T |
GNEE STEEL GROUP
We are experts in the supplying of materials to meet the individual requirements of a project, regardless of size, scope or difficulty.
As a specialized supplier of highly qualified products such as HSLA Steel,Pressure vessel steel plate and Shipbuilding Steel Plate Plate and Equipment for industries such as Pressure Vessel, Heat Exchager.
We mainly service for industry of Oil & Gas, Petrochemical, Power Generation, Onshore & Offshore and other industry and energy field over the world.
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FAQ
What is the difference between S690Q and S690QL?
S690Q: Minimum impact toughness tested at -20°C (30J average). → Typical Use: Cranes in temperate climates, quarry equipment. S690QL: Certified for -40°C and below (≥40J impact toughness). → Critical Use: Arctic pipelines, offshore platforms, mining vehicles in Siberia.
What grade is S690QL material?
S690QL is a high strength quenched and tempered steel grade that complies to steel specification EN 10025. The designation S690QL refers to a minimum yield strength of 690 MPa.
What is S690 grade steel?
S690 high yield & fine grain steel plate is a high strength, quenched and tempered fine-grain structural steel. Structural steel S690 is used in structures that must withstand very heavy loads. This grade is meant for structures where weight savings is important.
What is the equivalent of S690 steel?
Approximate equivalents
ASTM A514, EN 10149-2 Grade S700MC, AS/NZS 3579 Grade 700, AM 700, Bisalloy 80.
What is the price of S690QL material?
S690QL High Strength Steel Plates, Thickness: 5mm to 150mm at ₹ 135/kilogram in Mumbai.
What is the hardness of S690 QL steel?
S690QL steel stockholders and suppliers. S690QL is a quenched and tempered high strength steel supplied in full plates or cut pieces with delivery to the whole of the UK. With its high yield of minimum 690MPa it offers better strength than standard carbon steel grades.
What is the effective use of high strength S690 steel in construction?
The high strength S690 steels have an excellent strength-to-self-weight ratio, and they are highly efficient to be used in heavily loaded structures. Typical applications include piles and columns in buildings and supporting members in bridges.
What is the difference between S890QL and S690QL?
S690QL, S890QL, and S960QL are all water quenched and tempered steels that comply with the EN10025:6:2004 specification. These ultra high strength steels have a minimum yield strength of 690 MPa, 890 MPa, and 960 Mpa respectively, making them ideal for use in the haulage sector.
What is the difference between S700MC and S690ql?
The S700MC Steel is basically a structural steel plate developed especially for applications requiring high yield strength. They are used for several load bearing applications. The S690ql is a low alloy structural steel which is high in strength and comes with good weldability.
What is the yield strength of s690 steel?
690 MPa.
Yield strength of 690 MPa. Used in structures bearing extremely heavy loads, such as bridges, offshore drilling rigs and buildings, as well as in heavy construction equipment and cranes.
| Grades Of Carbon and Low-alloy High-strength Steels Supplied By GNEE | |||||
| EN10025 | EN10025-2 | EN10025-2 S235J0 | EN10025-2 S275J0 | EN10025-2 S355J0 | EN10025-2 S355K2 |
| EN10025-2 S235JR | EN10025-2 S275JR | EN10025-2 S355JR | EN10025-2 S420J0 | ||
| EN10025-2 S235J2 | EN10025-2 S275J2 | EN10025-2 S355J2 | |||
| EN10025-3 | EN10025-3 S275N | EN10025-3 S355N | EN10025-3 S420N | EN10025-3 S460N | |
| EN10025-3 S275NL | EN10025-3 S355NL | EN10025-3 S420NL | EN10025-3 S460NL | ||
| EN10025-4 | EN10025-4 S275M | EN10025-4 S355M | EN10025-4 S420M | EN10025-4 S460M | |
| EN10025-4 S275ML | EN10025-4 S355ML | EN10025-4 S420ML | EN10025-4 S460ML | ||
| EN10025-6 | EN10025-6 S460Q | EN10025-6 S460QL | EN10025-6 S460QL1 | EN10025-6 S500Q | |
| EN10025-6 S500QL | EN10025-6 S500QL1 | EN10025-6 S550Q | EN10025-6 S550QL | ||
| EN10025-6 S550QL1 | EN10025-6 S620Q | EN10025-6 S620QL | EN10025-6 S620QL1 | ||
| EN10025-6 S690Q | EN10025-6 S690QL | EN10025-6 S690Q1 | EN10025-6 S890Q | ||
| EN10025-6 S890QL | EN10025-6 S890QL1 | EN10025-6 S960Q | EN10025-6 S960QL | ||
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