Q235 Q345 Structural Steel Plate 6-80mm Thickness 1600-3200mm Width GB Standard

Price Negotiable
Price: 800 - 9000 USD / ton
MOQ: 5T
Delivery Time: 60-75days
Brand: HDT
Product Description
Product Overview

High-quality Q235 and Q345 series structural steel plates available in cold rolled or hot rolled options with thickness ranging from 6mm to 80mm.

Key Specifications
  • Standard: GB/T 1591-2008, GB/T 3274-2007
  • Thickness: 6-80mm
  • Width: 1600-3200mm
  • Length: 6000-14000mm
  • Grades: Q345A, Q345B, Q345C, Q345D, Q345E
Q345 structural steel plate showing surface finish and dimensional accuracy
Chemical Composition (WT%)
Grade C Si Mn P S V Nb Al Ti
Q345A ≤0.20 ≤0.55 1.00-1.60 ≤0.045 ≤0.045 0.02-0.15 0.015-0.060 - 0.02-0.20
Q345B ≤0.20 ≤0.55 1.00-1.60 ≤0.040 ≤0.040 0.02-0.15 0.015-0.060 - 0.02-0.20
Q345C ≤0.20 ≤0.55 1.00-1.60 ≤0.035 ≤0.035 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20
Q345D ≤0.18 ≤0.55 1.00-1.60 ≤0.030 ≤0.030 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20
Q345E ≤0.18 ≤0.55 1.00-1.60 ≤0.025 ≤0.025 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20
Mechanical Properties
Grade Thickness (mm) Test Temperature (°C) Elongation (%) Proof Stress (MPa) Tensile Strength (MPa)
Q345A ≤16 - 21 345 470-630
Q345B ≤16 20 21 345 470-630
Q345C 16-35 0 22 ≥325 470-630
Q345D 35-50 -20 22 ≥295 470-630
Q345E 50-100 -40 22 ≥275 470-630
Product Series & Standards
Product Series Executive Standard Grade Class Thickness (mm) Delivery State
Low-alloy structural steel GB/T 1591-2008
GB/T 3274-2007
Q345 A,B 6~150 AR
C,D 6~150 CR
E 6~150 TMCP
Q390 A,B,C,D,E 6~150 CR
Q420 6~150 TMCP
Q500 6~100 TMCP
Q550 6~100
Q620 6~80
Q690 6~80

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Location Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
Contact Person Yolanda Zou

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