GB-T1591 Q550E

 GB-T1591 Q550E, Q550E,Q550E Steel Plate,Q550E Stock,Q550E supplier

Unitedsteel Carbon Plate Factory are specialized in exporting GB-T1591 Q550E Low alloy and high strength steel plate, heavy plate and wide, heavy plate, Which is a large steel plate supplier mill at Unitedsteel Group.

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  1. Q550E Adopt standard: GB-T1591 Standard Specification is for Rolled Steels for Welded Structure
  2. Q550E Specification:  Thickness: 1mm to 500mm; Width: 1500mm to 4500mm: Length: 3000mm to 27000mm
  3. Third Party Inspection for Q550E: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
  4. Q550E Chemical composition Max % of the Product analysis of grade
C Si Mn P S Nb V Ti
0.18 0.60 2.00 0.025 0.020 0.11 0.12 0.20
Cr Ni Cu N Mo B Als min  
0.80 0.80 0.80 0.015 0.30 0.004 0.015  
  1. Q550E Yield strength
Nominal thickness (mm) To 16 16-40 40-63 63-80 80-










ReH – Minimum yield strength (MPa) 550 530 520 500 490
  1. Q550E Tensile Strength
Nominal thickness (mm) To 40 40-63 63-80 80-100 100-150 150-250 250-400
ReH – Minimum yield strength (MPa) 670-830 620-810 600-790 590-780
  1. Q550E Impact Test degree and energy
  Min Energy Nominal thickness
Temperature ℃ -40
Thickness (mm) 12-150 150-250 250-400
Notch impact test. Min. absorbed energy 31


  1. Equivalent grades of grade Q550E
  2. Q550E Delivery Time Or Lead Time: 15-30days
  3. Q550E Extra Service: Pretreatment (Shot Blasting, Sand Blast, Painting and Galvanized), Cutting Parts, Sample Service, Third Party inspection, UT Test and Size inspection.
  4. If you have any requirement in steel plate for Q550E, whether the new plate or stock list of material, please feel free to contact us by email of calling.
  5. If you had any question at our plate or service. Please contact our after service department to get faster reply.

Unitedsteel Group Company Principle


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