What is S550Q steel?

S550Q steel plate is a hydroelectric steel plate. It is a low-alloy high-strength steel plate and is a German standard steel plate. It has the characteristics of high yield and many strengthening alloy elements.
When the S550Q steel plate is required to have thickness performance, you can also add a symbol representing the thickness direction, that is, the Z-direction performance level after the grade specified above, such as S550Q-Z15, S550Q-Z25, S550Q-Z35.

S550Q steel plate composition(%)

C:<=0.22, Si:<=0.86, Si:<=1.80, P:<=0.030 S:<=0.017, N:<=0.0060, Cu:<=0.55, Mo:<=0.74, Cr:< =1.60, V:<=0.14, Nb:<=0.07, Ti:<=0.07, B:<=0.0060, Ni:<=2.10

What are the mechanical properties of S550Q plates?
Tensile strength Rm: 640-820MPa;
Yield strength: 550 MPa;
The elongation of copy after fracture is 16%

S550Q steel plates delivery status

S550Q plate is delivered in the quenched and tempered tempered state. It can also be attached to the requirements of the flaw detection standard requirements, flaw detection level requirements, Z-direction performance requirements, requirements for the addition of special alloy elements, etc., but subject to communication between the supply and demand parties, and indicated in the contract. So in the above it is also said that S550Q steel plate is quenched and tempered high strength steel plate.

S550 series steel can be divided into four grades such as S550Q, S550QL, S550QL1 grade, belonging to the European standard low alloy high strength steel EN 10025-6-2004. For S550Q steel stock/price in China, welcome to contact us.
Email: bebon.steel@outlook.com
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