EN 10083-2 Steel Plate
C40 Steel Plate Applications & Ordering Guide
EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering is specified for industrial fabrications where the drawing or material list names this grade. This applications page explains where the grade is used, what service conditions drive selection, and which certificate details belong on the purchase order. Gangsteel supplies EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering with EN 10204 mill test certificates.
Typical Applications and Service Conditions
EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering plate is ordered for pressure equipment, process vessels, heat-exchanger related fabrications, structural members under the governing code, and project packages that call the grade by name. Match the mill test certificate grade mark to the calculation sheet; do not treat near-equivalents as automatic substitutes.
Service drivers include the design temperature and pressure of the governing code (ASME, EN/PED, class society, or project specification), weld procedure qualification needs, toughness or creep allowables where applicable, and inspection scope. Delivery condition +A annealed, +N normalized, or +QT quenched and tempered as ordered should be stated explicitly on the purchase order.
Industry Use Cases
Pressure equipment and process: shells, heads, and related platework when drawings name EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering. Power and energy: boiler and heat-recovery fabrications under the ordered edition. Marine / offshore (when classed): only when the society material list names this exact grade stamp. Always keep heat-number traceability on cut pieces.
Chemical Composition - Supporting Data (EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering)
EN 10083-2 C40 (1.0511). C40E/C40R have tighter P/S. Mechanical values below are +QT reference by ruling section.
| Element / rule | Requirement |
|---|---|
| C | 0.37-0.44 |
| Si, max | 0.40 |
| Mn | 0.50-0.80 |
| P, max | 0.045 |
| S, max | 0.045 |
| Cr, max (residual) | 0.40 |
| Mo, max (residual) | 0.10 |
| Ni, max (residual) | 0.40 |
| Cr+Mo+Ni, max | 0.63 |
Mechanical Properties - Supporting Data (EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering)
Confirm thickness, specimen orientation, and any supplementary impact, UT, or hardness requirements on the PO.
| Property | Requirement |
|---|---|
| +QT yield/tensile (d<=16 mm) | >=460 MPa / 650-800 MPa |
| +QT yield/tensile (16<d<=40 mm) | >=400 MPa / 630-780 MPa |
| +QT yield/tensile (40<d<=100 mm) | >=350 MPa / 600-750 MPa |
| Delivery | +A / +N / +QT as ordered |
Related / Near-Equivalent Grades
Near-equivalents are for cross-reference only. They are not automatic code substitutes. Substitution requires engineer approval and matching certificate scope.
| System | Grade | Note |
|---|---|---|
| AISI/SAE | 1040 (approx.) | Near carbon twin |
| EN | C40E / C40R | Quality variants |
| DIN | Ck40 (historical) | Older designation |
Frequently Asked Questions
Where is EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering typically applied?
EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering is applied where design documents, class material lists, or purchaser specs name this grade for pressure, process, structural, or marine fabrications as applicable. Match the MTC marking to the drawing.
What service conditions drive selection of EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering?
Design temperature and pressure, toughness or creep allowables, weldability, corrosion or process media, and the governing code edition drive selection. Delivery condition +A annealed, +N normalized, or +QT quenched and tempered as ordered must align with the ordered specification.
Can a near-equivalent replace EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering on an applications drawing?
Not without redesign and written approval. Near-equivalents differ in chemistry, heat treatment, impact temperature, or product form. Commercial swaps create non-conformance when the dossier names EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering.
What fabrication notes matter for EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering?
Use approved WPS/PQR packages for the thickness and filler, control heat input, and preserve heat-number traceability on cut pieces. State any supplementary UT, PMI, or impact tests on the purchase order.
What certificate and marking should an applications PO demand?
EN 10204 3.1 is standard; 3.2 when a purchaser-appointed inspector witnesses tests. The MTC should show heat analysis, tensile results, delivery condition, and heat number aligned with EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering.
How should I RFQ EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering plate from Gangsteel for a project?
Send EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering, thickness x width x length (or nesting list), quantity, delivery condition, optional NDT/PMI, certificate type, destination, and any dual-mark needs. Note the end use when special flatness or cut-to-size packaging is required.
Ordering and Mill Certificates
State grade EN 10083-2 C40 (1.0511) carbon steel for quenching and tempering, dimensions, quantity, delivery condition, optional NDT/PMI, and certificate (EN 10204 3.1 standard; 3.2 when third-party inspection is ordered). Gangsteel supplies export plate and related products with mill test certificates. Contact Gangsteel for stock and mill production RFQs.