Q345B Q345C Q345D Q345E Q390B Q390C Q390D Plate Inquiry | High Strength Low Alloy Requirements
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GradeQ345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390CStandardASTM GB EN JIS BIS
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Thickness2.0 mm ~ 3.5 mm or customizedTypeSteel Sheet
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Alloy Or NotNon-AlloyApplicationShip Plate, Boiler Plate, Container Plate, Making Pipes, Making Cold Rolled Steel Products, Making Small Tools
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CertificateAPI , CE, SNI, BIS, Saso, SONCAP, SABS, KS, JIS, Gs, ISO 9001, ISO9001:2008Delivery Timewithin 7 days
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Processing ServiceWelding, Punching, Cutting, Bending, DecoilingSkin PassYes
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Tolerance±1%ShapeFlat sheet
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SampleAvaliablePayment term30%T/T Advance + 70% Balance
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UseHigh Pressure Vessel SteelMOQ1 Ton
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Delivery termFOB CFR CIFPackageStandard Seaworth Packing
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PortTianjin Qingdao ShanghaiMaterialQ345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390C
Use an exact grade suffix and material specification when selecting plate for construction engineering.
Designation and alloy
The title requests low alloy material and Q390D while the detail labels non-alloy and lists a narrower grade set. Confirm actual designation, chemistry and suffix instead of treating those descriptions as equivalent certified material.
Finished dimensions
The thickness description includes 2–3.5 mm or custom supply with actual custom length and width alternatives. Agree one actual thickness and finished cut size, including edge and dimensional acceptance for the project.
- Exact grade and suffix
- Actual alloy and test scope
- Thickness and finished dimensions
- Edges and delivered condition
- Construction design inspection
Mechanical evidence
High strength and boiler applications provide no measured material result. Request actual inspection records and engineering requirements; no certified yield, toughness, pressure approval or structural capacity is established for every title grade.
