ASTM A36 Q235 Q345 SS400 Steel Plate Inquiry | 1–20mm Hot Rolled High Strength Boiler Requirements
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StandardASTM GB EN JIS BISThickness2.0 mm ~ 3.5 mm(0.08in~0.14in)
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TypeSteel SheetAlloy Or NotNon-Alloy
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ApplicationShip Plate, Boiler Plate, Container Plate, Making Pipes, Making Cold Rolled Steel Products, Making Small ToolsCertificateAPI , CE, SNI, BIS, Saso, SONCAP, SABS, KS, JIS, Gs, ISO 9001, ISO9001:2008
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Delivery Timewithin 7 daysTolerance±1%
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ShapeFlat sheetSampleAvaliable
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Payment term30%T/T Advance + 70% BalanceUseHigh Pressure Vessel Steel
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MOQ1 TonDelivery termFOB CFR CIF
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PackageStandard Seaworth PackingPortTianjin Qingdao Shanghai
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MaterialQ345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390C
Agree one material specification before requesting steel plate for a boiler or demanding fabrication.
Grade scope
The title names A36, Q235, Q345 and SS400 while the detailed material list centers on Q345 and Q390 variants. Confirm actual designation and applicable standard instead of treating the grades as equivalent certified supply.
Thickness and cut size
The requested 1–20 mm scope is broader than the detailed 2–3.5 mm range. Resolve actual thickness, select a finished width from the actual width band and agree requested cut length with dimensional acceptance.
- Exact material designation
- Actual thickness and tolerance
- Finished width and cut length
- Material inspection records
- Boiler design acceptance
Performance evidence
High strength and pressure vessel labels provide no measured yield, toughness or pressure approval. Request actual material tests and project requirements; no boiler system certification or structural load rating is established.




