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| EN 10142 (old) | DX52D+Z (EN 10142) | withdrawn 2004 |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 |
Coating mass against forming severity
| Class | Zinc mass (g/m², both sides) | Thickness per side (µm) | Typical life C3 | Where used |
|---|---|---|---|---|
| Z100 | 100 | ≈ 7 | 4–6 years | the safest choice for pressed panels — least zinc to shed |
| Z140 | 140 | ≈ 10 | 6–9 years | standard for formed enclosure and appliance parts |
| Z200 | 200 | ≈ 14 | 9–13 years | formed outdoor parts, shallow-drawn covers |
| Z275 | 275 | ≈ 20 | 12–18 years | the practical ceiling for drawing; expect powdering at tight radii |
Heavy classes are not offered on drawing grades: above roughly Z275 the brittle Fe–Zn alloy layer at the interface cracks and powders when the sheet is drawn rather than bent. If the part needs both a deep draw and a long outdoor life, draw it in Z100–Z140 and paint it, or move the corrosion duty to a post-galvanized assembly.
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
Because DX52D is a forming grade, packs are built to protect the surface: sheets interleaved, corner protectors on every edge, and a dry desiccant bag inside the wrap for sailings over two weeks. Coils travel eye-to-sky on cradles at 5-20 t. Loading is 20-21 t in a 20' and 24 t in a 40' HC. Tariff 7210.49.
| 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 is released against an EN 10204 3.1 certificate carrying the yield and tensile range, the elongation A80 and the triple-spot zinc mass; the mill also reports the passivation type, which tells a paint shop whether the surface will take primer as delivered. We hold a retained sample of every coil for six months in case a formed part is queried later.
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.