Q345B Q390B Q420B Q390C High Strength Plate Inquiry | Heavy Construction Engineering Cut Size

• Grade

  Q345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390C
  Standard

  ASTM GB EN JIS BIS
• Thickness

  2.0 mm ~ 3.5 mm
  Type

  Steel Sheet
• Alloy Or Not

  Non-Alloy
  Application

  Ship Plate, Boiler Plate, Container Plate, Making Pipes, Making Cold Rolled Steel Products, Making Small Tools
• Certificate

  API , CE, SNI, BIS, Saso, SONCAP, SABS, KS, JIS, Gs, ISO 9001, ISO9001:2008
  Delivery Time

  within 7 days
• Processing Service

  Welding, Punching, Cutting, Bending, Decoiling
  Skin Pass

  Yes
• Tolerance

  ±1%
  Shape

  Flat sheet
• Sample

  Avaliable
  Payment term

  30%T/T Advance + 70% Balance
• Use

  High Pressure Vessel Steel
  MOQ

  1 Ton
• Delivery term

  FOB CFR CIF
  Package

  Standard Seaworth Packing
• Port

  Tianjin Qingdao Shanghai
  Material

  Q345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390C

Choose one actual grade and finished size before requesting engineering steel plate.

Grade scope

The title names Q420B alongside Q345B, Q390B and Q390C while the detailed material list does not include Q420B. Confirm actual designation and applicable material tests rather than presenting every title grade as verified supply.

Plate dimensions

The detail states 2–3.5 mm thickness with custom length and a width band or custom option. Select actual thickness and cut dimensions with edge and surface acceptance instead of treating heavy construction wording as evidence of a thick stocked plate.

• Exact actual designation
• Thickness and tolerance
• Finished width and length
• Edges and delivered surface
• Engineering material inspection

Performance acceptance

High strength and pressure vessel uses provide no measured yield, toughness or pressure result. Request actual records and design acceptance; no certified strength or structural load rating is established.