ISO/TR15510 STAILESS STEEL
X30Cr13 Steel Plate Applications & Ordering Guide
X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) 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 X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) with EN 10204 mill test certificates.
Typical Applications and Service Conditions
X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) 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 Annealed supply common for plate; QT condition when ordered for strength should be stated explicitly on the purchase order.
Industry Use Cases
Pressure equipment and process: shells, heads, and related platework when drawings name X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family). 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 (X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family))
EN 10088 cast/heat analysis for 1.4028 / X30Cr13. Not the same as soft A240 Type 410 (lower C).
| Element / rule | Requirement |
|---|---|
| C | 0.26-0.35 |
| Si, max | 1.00 |
| Mn, max | 1.50 |
| P, max | 0.040 |
| S, max | 0.030 |
| Cr | 12.0-14.0 |
Mechanical Properties - Supporting Data (X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family))
Confirm thickness, specimen orientation, and any supplementary impact, UT, or hardness requirements on the PO.
| Property | Requirement |
|---|---|
| Annealed hardness, max (typical) | 245 HBW |
| QT850 yield Rp0.2, min (long product ref.) | 650 MPa |
| QT850 tensile Rm (long product ref.) | 850-1000 MPa |
| QT850 elongation A, min | 10% |
| Delivery | Annealed or 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 |
|---|---|---|
| EN | 1.4028 | Official number |
| AISI/UNS | 420 / S42000 | Approx. US twin |
| ASTM | A240 Type 420 | Confirm flat-product edition |
Frequently Asked Questions
Where is X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) typically applied?
X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) 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 X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family)?
Design temperature and pressure, toughness or creep allowables, weldability, corrosion or process media, and the governing code edition drive selection. Delivery condition Annealed supply common for plate; QT condition when ordered for strength must align with the ordered specification.
Can a near-equivalent replace X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) 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 X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family).
What fabrication notes matter for X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family)?
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 X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family).
How should I RFQ X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family) plate from Gangsteel for a project?
Send X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family), 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 X30Cr13 / EN 1.4028 (AISI 420 / UNS S42000 family), 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.