What is the meaning of EN 10025-6 grade S690QL plates

In terms of service, our service is a "one-stop" way of working. We have our own EN 10025-6 grade S690QL plates processing plant and pretreatment plant, pretreatment of ship steel (shot blasting, derusting, painting). Technical parameters of steel plate and profile steel surface pretreatment production line. We can also let customers enjoy our other pretreatment services, such as EN 10025-6 grade S690QL plates cutting, welding, drilling, galvanizing, etc., at the lowest cost.

Common EN 10025-6 grade S690QL plates, steel plate thickness specifications are as follows:
Thick steel plate: thickness greater than 4, width within 10 is less than 2000mm, width above 10 is generally 2000, 2500mm, length 4-12m;
Thin steel plate: thickness less than 4mm, width 500-1500mm, length 1.5-4m;
Flat steel: thickness 4-60mm, width 12-200mm, length 3-9m.

Heat treatment advantages of EN 10025-6 grade S690QL plates, SA516 Gr 70 pressure vessel steel:
1) SA516 Gr 70 pressure vessel steel quenching: The hardness of SA516 Gr 70 pressure vessel steel is increased, but the toughness is decreased.
2) SA516 Gr 70 pressure vessel steel normalizing: Improve strength and toughness.
3) SA516 Gr 70 pressure vessel steel annealing: Eliminate quenching effect, eliminate stress, uniform composition.
4) SA516 Gr 70 pressure vessel steel tempering: Uniform composition, slightly reduce hardness, greatly improve toughness.

Converter steelmaking: The furnace body of the converter can be rotated, and the steel plate is used as the outer shell, and the refractory is used as the inner lining. Converter EN 10025-6 grade S690QL plates steelmaking does not require additional heating, because the molten iron is inherently high temperature, and it still continues to generate thermal oxidation reactions (from silicon, carbon and oxygen in molten iron).Because no more fuel is needed for heating, energy consumption is reduced.

A537 grade 70 steel with the thickness range is 1.2-600mm, the width range is 1220-4200mm, and the length range is 5000-18000mm. Also note that the EN 10025-6 grade S690QL plates, A537 grade 70 steel coil thickness should not exceed 25 mm. The mechanical properties of A537 grade 70 steel is yield strength is 290MPa, and the tensile strength is 485-620Mpa.

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