Champak Industries' is a specialist supplier and exporter of High strength steels SUPRALSIM 690 Plates. We understand customers whose requirement for High strength steels Plates is extreme and who cannot use inferior quality steel plates.
SUPRALSIM 690 is a high strength quenched & tempered steel dedicated for structure and enables to make weight savings thanks to minimum yield strength of 690 N/mm². Thanks to its exceptional purity rate (very low sulphurand phosphorous contents), and its adapted chemical analysis, the SUPRALSIM 690 steel is easy to shape and to weld.
SUPRALSIM 690 Plates: Purchasing Specification
| Requirement | What to specify |
|---|---|
| Grade and standard | EN 10025-6 grade (S690Q, S690QL or S690QL1) or the named brand; state the edition and whether equivalent brands are acceptable. |
| Impact requirement | Charpy temperature and energy: “L” grades are tested at −40 °C and “L1” grades at −60 °C. |
| Thickness | Yield and tensile strength fall as thickness rises, so give the thickness range of your plates. |
| Welding | Preheat and consumables depend on carbon equivalent and thickness; ask for the mill’s welding recommendations. |
| Documents | EN 10204 3.1 or 3.2 mill certificate, with ultrasonic testing where specified. |
STANDARD
SUPRALSIM 690 fulfills the requirements of S690 QL according to EN 10137-2 standard.
Standard: EN 10137-2 was replaced by EN 10025-6, which carries the same S690QL requirements.
CHEMICAL ANALYSIS
Maximum values (Weight %)
| C | Mn | Si | Cr | Mo | P | S | V | Ni | Cu | Ai |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.20 | 1.60 | 0.50 | 1.50 | 0.60 | 0.02 | 0.010 | 0.080 | 1.35 | 0.500 | 0.02 to 0.05 |
Reading the chemistry: The values are maximum percentages. “Ai” means Al (aluminium); “0.02 to 0.05” is the aluminium range.
Typical CEV
| Thickness | ≤ 10mm (0.4") | 10 – 65 mm (0.4" – 2 ½") | > 65 mm (2 ½") |
|---|---|---|---|
| CEV | 0.48 | 0.57 | 0.73 |
MECHANICAL PROPERTIES
Minimum values
| Thickness | Y.S. 0.2 mini N/mm² (KSI) | UTS N/mm² (KSI) | Elongation A 5% |
|---|---|---|---|
| ≤ 50 mm (2") | 690 (100) | 770-940 (112-136) | 14 |
| 50 < th ≤ 100 mm (2"< th ≤4") | 650 (94) | 760-930 (110-134) | 14 |
| 100 < th ≤ 120 mm (4"< th ≤ 4 3/4") | 630 (91) | 760-930 (110-134) | 710-900 (103-130) |
Last row: For plates over 100 mm the tensile range is 710–900 MPa; the row shows 760–930 and 710–900 together, so use 710–900 MPa (103–130 ksi) for that range.
PHYSICAL PROPERTIES
Impact tests
Heading: The heading says “Physical properties” but the tables show impact tests, which are mechanical properties.
| Guaranteed Minimum values | -40°C (-40°F) | |
|---|---|---|
| J | ft.lbs | |
| Transversal direction | 27 | 20 |
For 6 mm ≤ thickness < 10 mm, subsize specimen will be used and requirement adapted accordingly.
Typical value in cross direction at -40°C (-40°F)
| Thickness → | ≤ 10mm (0.4") | 10 – 65 mm (0.4" – 2 ½") | > 65 mm (2 ½") |
|---|---|---|---|
| Charpy V J ft.lbs |
40-45 26-30 |
100 73 |
100-120 73-90 |
Weight saving and/or more resistant structures
Due to its high yield strength compared to classical steel (750 Mpa in average), you can :- reduce thickness of structure and make weight saving and/or
Weight saving: Ordinary structural steels such as S355 have a minimum yield of 355 MPa, so the “750 MPa” figure should not be read as the yield of classical steel. Ask for the datasheet for any weight-saving calculation.
support higher stresses and realise more resistant structures
Choosing a Quenched and Tempered Structural Plate
These brands are all quenched and tempered high-yield structural steels used where design strength is limited by plate weight. They are comparable in strength class but not identical: thickness range, chemistry, toughness grades and welding advice differ by mill.
| Brand | Basis | Notes from the pages |
|---|---|---|
| S690 QL | EN 10025-6 grade, 690 MPa minimum yield up to 50 mm | Impact guaranteed at −40 °C; start here if the brand is not fixed |
| DILLIMAX 690 | Dillinger brand, in B, T and E qualities (S690Q, S690QL, S690QL1) | B at −20 °C, T at −40 °C, E at −60 °C; 6–255 mm (B, T) |
| WELDOX 700 | SSAB brand, in E and F qualities | E at −40 °C, F at −60 °C; 4–160 mm (E), 4–130 mm (F) |
| NAXTRA 70 | S690QL-class quenched and tempered structural steel | Machine building, lifting equipment, heavy transport |
| SUPRALSIM 690 (this page) | Quenched and tempered, 690 N/mm² minimum yield, low sulphur and phosphorus | Weight-saving structures; forming and welding |
| MAXIL 690 | 690 MPa-class brand listed with the other high-strength steels | Ask for the datasheet |
| JFE 780 LE | JFE HITEN 780 N/mm² class, 685 MPa minimum yield | Impact at −40 °C; 5–160 mm |
Use the grade and brand approved in your design; confirm any substitution with your engineer.
Related plates in this range
Applications for SUPRALSIM 690 Plates
Typical uses include cranes, lifting equipment, heavy transport, machine building and welded steel structures. Tell us the load, temperature and service conditions so the right grade and thickness can be quoted.
Cutting, Fabrication and Welding
Champak Industries describes full and part plate/profile supply and a plasma-cutting service. Send drawings, quantities, tolerances and edge preparation for your parts. High-strength plate needs controlled preheat, interpass temperature and heat input when welding, and forming limits depend on the grade and thickness; follow the mill’s recommendations.
Testing, Inspection Documents and Traceability
| Requirement | What to identify in the order |
|---|---|
| Mill test certificate | EN 10204 3.1 showing brand and grade, heat number, chemistry and mechanical properties |
| Impact test | Charpy test temperature and minimum energy, if required |
| Ultrasonic test | Standard and acceptance class, if required |
| Traceability | Heat and plate number transferred to cut pieces |
See the company’s Quality Policy for its published policy.
Source SUPRALSIM 690 Plates from Champak Industries
Champak Industries’ company profile records its establishment in Mumbai in 1978 and its stockist, import and export activities. SUPRALSIM 690 Plates can be requested together with other plates in the High Tensile Plates range.
What Determines the Quotation?
Grade and brand, thickness, plate size, quantity, cutting, testing and packing all affect the quotation. Say whether pricing is needed per kilogram, per plate or per finished piece.
Packing, Dispatch and Export Requirements
Give the delivery address, required date and unloading constraints. For export orders, include the destination port, delivery terms and document list.
SUPRALSIM 690 Plates: Frequently Asked Questions
01What is SUPRALSIM 690 Plates?
SUPRALSIM 690 is a quenched and tempered high-strength steel with 690 N/mm² minimum yield strength and very low sulphur and phosphorus, which the page says makes it easy to shape and weld.
02What standard does SUPRALSIM 690 meet?
The page says it fulfills S690 QL according to EN 10137-2. That standard has been replaced by EN 10025-6, so state EN 10025-6 on your order.
03What are the guaranteed impact values?
The page lists a guaranteed minimum of 27 J (20 ft·lbf) in the transverse direction at −40 °C, with typical values higher.
04How does it save weight?
Its higher yield strength lets designers reduce the plate thickness, or carry higher stresses at the same thickness, as the page explains.
05Can SUPRALSIM 690 be welded?
Yes, with low-hydrogen consumables and the preheat and interpass temperatures the mill gives for the grade and combined thickness.
06Which certificate should I request?
An EN 10204 3.1 mill test certificate showing the brand and grade, heat number, chemistry and mechanical properties, plus impact results where you specify a test temperature.
07Can another brand replace SUPRALSIM 690?
Brands of the same class are comparable, not identical. Chemistry, toughness, thickness range and processing advice differ by mill, so confirm any substitution with your engineer.
08Can SUPRALSIM 690 plate be cut to size?
Yes. Champak Industries lists full and part plate and profile supply and a plasma-cutting service; send drawings, quantities and tolerances with your enquiry.
09Which sizes are available?
Availability depends on the grade, mill and thickness; send the thickness, width and length you need and sizes will be confirmed at quotation.
10How do I get a price and delivery date?
Send the grade, thickness, size or cutting drawing, quantity, destination and required date through the enquiry form below, by WhatsApp or by phone.