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Q345B Q345C Q345D Low Alloy High Strength Carbon Steel Plate Hot Rolled 3mm-300mm for Bridge and High-Rise Construction

Q345B Q345C Q345D Low Alloy High Strength Carbon Steel Plate Hot Rolled 3mm-300mm for Bridge and High-Rise Construction

МОК: 5 тонн
цена: USD 550-720 / Ton
стандартная упаковка: Поверхность обработана дробеструйной обработкой SA2.5, стальная полоса в комплекте, экспортный дерев
Срок доставки: 10-20 рабочих дней после подтверждения заказа
способ оплаты: T/T, L/C на месте, D/P
Пропускная способность: 15000 тонн в месяц
Подробная информация
Место происхождения
Шанхай, Китай
Фирменное наименование
Baosteel
Сертификация
ISO 9001:2015, GB/T 1591, EN 10025 S355JR Equivalent, CE Marking
Номер модели
Q345B-LA-HR
Оценка:
Q345B / Q345C / Q345D (эквивалент: S355JR/J0/J2, A572 Gr50)
Стандартный:
ГБ/Т 1591, ЭН 10025-2, АСТМ А572
Толщина:
3 мм - 300 мм
Ширина:
1500 мм - 4500 мм
Длина:
6000мм - 18000мм
Предел текучести:
≥345 МПа (Q345B при ≤16 мм)
Предел прочности:
470 - 630 МПа
Температура удара:
Q345B: +20°C, Q345C: 0°C, Q345D: -20°C (≥34 Дж)
Приложение:
Мосты, Высотные Здания, Морские Платформы, Тяжелые Конструкции
Количество мин заказа:
5 тонн
Цена:
USD 550-720 / Ton
Упаковывая детали:
Поверхность обработана дробеструйной обработкой SA2.5, стальная полоса в комплекте, экспортный дерев
Время доставки:
10-20 рабочих дней после подтверждения заказа
Условия оплаты:
T/T, L/C на месте, D/P
Поставка способности:
15000 тонн в месяц
Выделить:

Q345B carbon steel plate for bridge construction

,

hot rolled low alloy steel plate

,

high strength carbon steel plate 3mm-300mm

Описание продукта

Q345B/C/D Low Alloy High Strength Structural Steel Plate

Our Q345B/C/D low alloy high strength structural steel plate is the Chinese national standard equivalent to EN S355JR/J0/J2 and ASTM A572 Grade 50, designed for demanding structural applications where weight savings and high load-bearing capacity are critical. With yield strength ≥345 MPa — 38% higher than standard A36 — Q345 allows thinner, lighter structures without compromising safety. Available in three impact-tested grades (B: +20°C, C: 0°C, D: -20°C) from 3mm to 300mm, this product is specified in Middle Eastern mega-bridge projects, Southeast Asian high-rise developments, and African infrastructure programs.

Key Features

  • 38% Stronger than A36: Yield strength ≥345 MPa enables material down-gauging, reducing structural weight and foundation costs while maintaining safety margins
  • Three Impact Grades: Q345B (+20°C), Q345C (0°C), and Q345D (-20°C) with guaranteed Charpy impact energy ≥34J for applications in diverse climate zones
  • Microalloyed Design: Small additions of Nb, V, Ti refine grain structure for improved strength, toughness, and weldability compared to plain carbon steel
  • Excellent Weldability: Low carbon equivalent (CEV ≤0.45%) allows welding with standard procedures and minimal preheat requirements
  • Global Equivalents: Direct substitution for S355JR/J0/J2 (EN 10025), A572 Gr50 (ASTM), SM490A (JIS), ensuring acceptance across international projects

Technical Specifications

GradeQ345B / Q345C / Q345D
Equivalent StandardsEN S355JR/J0/J2, ASTM A572 Gr50, JIS SM490A
Thickness3mm - 300mm
Width1500mm - 4500mm
Length6000mm - 18000mm (custom longer available)
Yield Strength≥345 MPa (thickness ≤16mm)
Tensile Strength470 - 630 MPa
Impact Energy≥34J (Q345B +20°C, Q345C 0°C, Q345D -20°C)

Target Markets & Applications

  • Middle East: Highway and railway bridge main girders, stadium roof trusses, mega-mall structural framing
  • Southeast Asia: High-rise building core columns and beams, port crane structures, industrial plant steelwork
  • Africa: Dam gate structures, mining plant heavy steelwork, long-span roof trusses for airport terminals
  • Offshore platform topside modules, wind turbine tower flanges, heavy-lift crane booms

Packaging & Delivery

Shot blasted to SA2.5 cleanliness with shop primer coating available on request. Plates bundled by size with steel strapping on heavy-duty wooden or steel pallets. MTC EN 10204 3.1 and CE marking documentation provided. Custom cut-to-size by plasma/oxy-fuel. FOB Shanghai/Tianjin, CIF to Middle East, Southeast Asia, and Africa.

продукты
Подробная информация о продукции
Q345B Q345C Q345D Low Alloy High Strength Carbon Steel Plate Hot Rolled 3mm-300mm for Bridge and High-Rise Construction
МОК: 5 тонн
цена: USD 550-720 / Ton
стандартная упаковка: Поверхность обработана дробеструйной обработкой SA2.5, стальная полоса в комплекте, экспортный дерев
Срок доставки: 10-20 рабочих дней после подтверждения заказа
способ оплаты: T/T, L/C на месте, D/P
Пропускная способность: 15000 тонн в месяц
Подробная информация
Место происхождения
Шанхай, Китай
Фирменное наименование
Baosteel
Сертификация
ISO 9001:2015, GB/T 1591, EN 10025 S355JR Equivalent, CE Marking
Номер модели
Q345B-LA-HR
Оценка:
Q345B / Q345C / Q345D (эквивалент: S355JR/J0/J2, A572 Gr50)
Стандартный:
ГБ/Т 1591, ЭН 10025-2, АСТМ А572
Толщина:
3 мм - 300 мм
Ширина:
1500 мм - 4500 мм
Длина:
6000мм - 18000мм
Предел текучести:
≥345 МПа (Q345B при ≤16 мм)
Предел прочности:
470 - 630 МПа
Температура удара:
Q345B: +20°C, Q345C: 0°C, Q345D: -20°C (≥34 Дж)
Приложение:
Мосты, Высотные Здания, Морские Платформы, Тяжелые Конструкции
Количество мин заказа:
5 тонн
Цена:
USD 550-720 / Ton
Упаковывая детали:
Поверхность обработана дробеструйной обработкой SA2.5, стальная полоса в комплекте, экспортный дерев
Время доставки:
10-20 рабочих дней после подтверждения заказа
Условия оплаты:
T/T, L/C на месте, D/P
Поставка способности:
15000 тонн в месяц
Выделить

Q345B carbon steel plate for bridge construction

,

hot rolled low alloy steel plate

,

high strength carbon steel plate 3mm-300mm

Описание продукта

Q345B/C/D Low Alloy High Strength Structural Steel Plate

Our Q345B/C/D low alloy high strength structural steel plate is the Chinese national standard equivalent to EN S355JR/J0/J2 and ASTM A572 Grade 50, designed for demanding structural applications where weight savings and high load-bearing capacity are critical. With yield strength ≥345 MPa — 38% higher than standard A36 — Q345 allows thinner, lighter structures without compromising safety. Available in three impact-tested grades (B: +20°C, C: 0°C, D: -20°C) from 3mm to 300mm, this product is specified in Middle Eastern mega-bridge projects, Southeast Asian high-rise developments, and African infrastructure programs.

Key Features

  • 38% Stronger than A36: Yield strength ≥345 MPa enables material down-gauging, reducing structural weight and foundation costs while maintaining safety margins
  • Three Impact Grades: Q345B (+20°C), Q345C (0°C), and Q345D (-20°C) with guaranteed Charpy impact energy ≥34J for applications in diverse climate zones
  • Microalloyed Design: Small additions of Nb, V, Ti refine grain structure for improved strength, toughness, and weldability compared to plain carbon steel
  • Excellent Weldability: Low carbon equivalent (CEV ≤0.45%) allows welding with standard procedures and minimal preheat requirements
  • Global Equivalents: Direct substitution for S355JR/J0/J2 (EN 10025), A572 Gr50 (ASTM), SM490A (JIS), ensuring acceptance across international projects

Technical Specifications

GradeQ345B / Q345C / Q345D
Equivalent StandardsEN S355JR/J0/J2, ASTM A572 Gr50, JIS SM490A
Thickness3mm - 300mm
Width1500mm - 4500mm
Length6000mm - 18000mm (custom longer available)
Yield Strength≥345 MPa (thickness ≤16mm)
Tensile Strength470 - 630 MPa
Impact Energy≥34J (Q345B +20°C, Q345C 0°C, Q345D -20°C)

Target Markets & Applications

  • Middle East: Highway and railway bridge main girders, stadium roof trusses, mega-mall structural framing
  • Southeast Asia: High-rise building core columns and beams, port crane structures, industrial plant steelwork
  • Africa: Dam gate structures, mining plant heavy steelwork, long-span roof trusses for airport terminals
  • Offshore platform topside modules, wind turbine tower flanges, heavy-lift crane booms

Packaging & Delivery

Shot blasted to SA2.5 cleanliness with shop primer coating available on request. Plates bundled by size with steel strapping on heavy-duty wooden or steel pallets. MTC EN 10204 3.1 and CE marking documentation provided. Custom cut-to-size by plasma/oxy-fuel. FOB Shanghai/Tianjin, CIF to Middle East, Southeast Asia, and Africa.