What is DX52D galvanized steel?
DX52D is the first EN 10346 grade with a guaranteed yield range — 140 to 300 MPa — and a minimum elongation of 26 %, which is what a press shop needs to predict spring-back and drawing behaviour. It is produced from a cleaner, lower-carbon heat than DX51D (C ≤ 0.12 %, P ≤ 0.10 %) on a cold-rolled substrate (the mill may mark it DC-based), then hot-dip galvanized with the same Z100–Z275 coatings. The result is a sheet that draws into shallow pans, embossed panels and stiffened doors, forms hems and flanges without edge cracking, and gives a smooth surface for painting. It sits between the commodity DX51D and the deep-drawing DX53D/DX54D in both cost and formability; for most enclosure, appliance and HVAC pressings it is the economical choice. Substrate thickness 0.40–3.0 mm; supplied with minimised spangle (M) and surface quality B for parts that will be painted.
Chemical composition
| Element | C | Si | Mn | P | S | Ti |
|---|---|---|---|---|---|---|
| max. % (ladle) | 0.12 | 0.50 | 0.60 | 0.10 | 0.045 | 0.30 |
Typical heat: C 0.03–0.05, Mn 0.20, Al-killed.
Mechanical properties and drawability
| Property | Requirement | Typical value | Note |
|---|---|---|---|
| Yield strength Rp0.2 | 140–300 MPa | 180–240 MPa | guaranteed window |
| Tensile strength Rm | 270–420 MPa | 300–360 MPa | |
| Elongation A80 | ≥ 26 % | 30–38 % | |
| Bend test | 0 × t (180°) | passes | |
| r-value / n-value | not specified | r ≈ 1.2, n ≈ 0.18 | shallow drawing |
Equivalent grades
| System | Grade | Note |
|---|---|---|
| EN 10142 (old) | DX52D+Z (EN 10142) | withdrawn 2004 |
| DIN 17162 | St 03 Z+Z (EN 10142) | historic German |
| JIS G3302 | SGCD1 | |
| ASTM A653 | FS Type B / Forming Steel | coating G90 ≈ Z275 |
| GB/T 2518 | DX52D+Z |
Zinc coating classes (Z100–Z600)
| Class | Zinc mass (g/m², both sides) | Thickness per side (µm) | Typical life C3 | Where used |
|---|---|---|---|---|
| Z100 | 100 | ≈ 7 | 4–6 years | indoor, painted parts, ducting |
| Z140 | 140 | ≈ 10 | 6–9 years | the Turkish stock standard |
| Z200 | 200 | ≈ 14 | 9–13 years | roofing, outdoor cladding |
| Z275 | 275 | ≈ 20 | 12–18 years | export standard, purlins, structural |
| Z350 | 350 | ≈ 25 | 15–22 years | agriculture, coastal |
| Z450 / Z600 | 450 / 600 | ≈ 32 / 42 | 20–35 years | highway, marine, ground contact |
Life = time to 5 % red rust per ISO 9223 C3 (0.7–2.1 µm zinc loss per year); halve it for C4 industrial-coastal, double it for C2 rural. Spangle: normal (N) or minimised (M); surface quality A (normal) or B (improved, for painting); surface treatment C (chemical passivation), O (oiled), CO (both).
Thickness range and stock sizes
| Thickness | Widths × lengths | Availability |
|---|---|---|
| 0.40–0.80 mm | coil 1 000 / 1 250 mm; sheet to 3 000 | to order 2–3 weeks |
| 1.0–2.0 mm | coil 1 000 / 1 250 / 1 500 mm; sheet to 6 000 | to order 2–3 weeks |
| 2.5–3.0 mm | coil 1 250 / 1 500 mm | to order 3 weeks |
Weight per m² and per sheet
| Thickness | kg/m² | 1 000 × 2 000 (kg) | 1 250 × 2 500 (kg) | 1 500 × 3 000 (kg) |
|---|---|---|---|---|
| 0.4 mm | 3.28 | 6.6 | 10.3 | 14.8 |
| 0.5 mm | 4.07 | 8.1 | 12.7 | 18.3 |
| 0.6 mm | 4.85 | 9.7 | 15.2 | 21.8 |
| 0.7 mm | 5.64 | 11.3 | 17.6 | 25.4 |
| 0.8 mm | 6.42 | 12.8 | 20.1 | 28.9 |
| 1 mm | 7.99 | 16.0 | 25.0 | 36.0 |
| 1.2 mm | 9.56 | 19.1 | 29.9 | 43.0 |
| 1.5 mm | 11.92 | 23.8 | 37.2 | 53.6 |
| 2 mm | 15.84 | 31.7 | 49.5 | 71.3 |
| 2.5 mm | 19.77 | 39.5 | 61.8 | 88.9 |
| 3 mm | 23.69 | 47.4 | 74.0 | 106.6 |
Includes Z140 coating; add 0.135 kg/m² for Z275.
Forming, welding and painting
Shallow drawing and stretch-forming with draw ratios up to about 1.8, embossing and beading without orange-peel thanks to the fine grain; use zinc-compatible lubricant and polished tools to avoid galling. Hems close flat (0 × t). Spot and projection welding as for DX51D with fume extraction; MAG on thicker gauges with zinc-rich repair. For painting specify quality B, minimised spangle and passivation C or a chromate-free pretreatment; powder coating adheres well after alkaline degreasing.
Where it is used
- Pressed enclosure doors, panels and switchgear parts
- Water-heater and boiler jackets
- HVAC pans, drip trays and stiffened plenums
- Appliance housings and washing-machine panels
- Embossed cladding and shutter slats
- Shallow-drawn trays, boxes and lids
DX52D vs DX51D vs DX53D
DX51D has no yield guarantee and is for bending; DX52D guarantees 140–300 MPa and 26 % elongation for shallow drawing; DX53D narrows the window (140–260 MPa) and raises elongation to 30 % for deep drawing. Price steps are about 20 USD/t each. Order the lowest grade that forms the part without splitting — most enclosure pressings are DX52D territory.
Price
DX52D is priced about 20 USD/t over DX51D of the same thickness and coating; the bands below are indicative FOB Istanbul for mill-order coil. Slitting and cut-to-length in Dilovası are extra.
Bands from our weekly export list (September 2026), FOB Istanbul, full-container quantities, excluding freight and certificates. Firm price per project on RFQ within one working day.
Export and packing
DX52D galvanized steel ships as coil — eye-to-sky on a wooden cradle, 5–25 t per coil, VCI paper and steel strapping — or as cut sheet on skids of 2–3 t with paper interleaving and edge protectors. A 20' takes one coil up to 20 t; a 40' HC two coils or 24 t of sheet. HS 7210 / 7209 / 7208 by product.
| Term | Detail |
|---|---|
| MOQ | One coil (10–20 t) |
| Incoterms | FOB Istanbul · CIF / CFR Gulf, Africa · DAP EU, Balkans, Iraq, Caucasus · DAP Aktau |
| Lead time | To order 2–3 weeks (Turkish mill programme) |
| Packing | Coil eye-to-sky on cradle, VCI wrap; sheet on skids ≤ 3 t |
| Container / truck | 20' one coil ≤ 20 t; 40' HC two coils or 24 t sheet |
| Documents | Invoice, packing list, EN 10204 3.1 (3.2 on request), certificate of origin; SASO / SONCAP / PVoC on request |
| Payment | 30% advance, balance against B/L copy; L/C at sight for orders above 100 t |
Certificates and testing
DX52D galvanized steel ships with EN 10204 3.1 certificates cross-referenced to the stencilled heat numbers. Where the project requires it we arrange 3.2 certification with Lloyd's, BV, TÜV or SGS, ultrasonic examination to EN 10160 and Charpy testing at the temperature you specify.
How to order
Specify thickness × width × (length), coating class, spangle M, surface quality B, treatment (C / O / CO), the part type (so we can confirm the grade) and tonnage; mill slot confirmed within a day.
Standards
- EN 10346:2015 — DX52D+Z, 1.0350
- EN 10143 — tolerances
- EN 10204 3.1
- Former EN 10142 / DIN 17162 St 03 Z
Grades
Grade data sheets (chemistry, mechanicals, equivalents) are on our reference site: DX52D · DX51D · DX53D
Frequently asked questions
What is DX52D?
The drawing-quality hot-dip galvanized steel of EN 10346 (1.0350): guaranteed yield 140–300 MPa, elongation ≥ 26 %, for pressed and shallow-drawn parts; coating Z100–Z275.
What is the difference between DX51D and DX52D?
DX52D has a guaranteed yield window and 26 % elongation with lower carbon and phosphorus; DX51D is the bending grade without a yield guarantee. DX52D costs about 20 USD/t more.
What is the ASTM equivalent of DX52D?
ASTM A653 FS Type B (Forming Steel); JIS G3302 SGCD1.
Is DX52D in stock?
No — it is rolled to order in 2–3 weeks; DX51D is the stock grade and covers bending and roll-forming.