DIN 17102 StE285 Steel Plate | StE285 Fine Grain Steel supplier
What is DIN 17102 StE285 Steel ?
DIN 17102 StE285, also written StE 285, STE285, DIN17102 StE285 and StE285 steel plate, is a weldable normalized fine-grain structural steel under DIN 17102. StE means the basic / room-temperature quality. Yield in the thin band is 285 MPa. Tensile on thinner product is typically 390–510 MPa. This is the DIN 17102 line that conversion tables map to P275N (EN 10028-3, material no. 1.0486) and S275N (EN 10025-3). It is not StE255. It is not StE355. SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) for this grade. Plate is produced to DIN 17102 and shipped to buyers in the USA, Europe, Middle East and Southeast Asia.
A purchase order that only says “275 fine grain” or “P275N equivalent” is incomplete if the drawing still names DIN. Write DIN 17102 StE285. Do not ship StE255 against a StE285 drawing because 255 is the lower step. Do not ship StE355 against a StE285 drawing because 355 is the higher step.
DIN 17102 is a legacy specification. New European structural work usually names S275N / S275NL under EN 10025-3. New pressure work usually names P275N / P275NH / P275NL1. Replacement projects still name StE285 when an old German calculation or mill qualification stays on DIN.
This page is not DIN 17100 St44-2. DIN 17100 is ordinary structural steel. DIN 17102 is fine-grain, killed, normally normalized. This page is not SA516 Gr.60 and not SA516 Gr.70. It is not ASTM A36 steel plate. It is not QT alloy under ASME SA387 or ASME SA543.
Company scope: global steel mill sourcing partner – SHH STEEL.
Material Specification
| Specification Element | Requirement | SHH STEEL Compliance |
|---|---|---|
| Grade | DIN 17102 StE285 / StE 285 | Confirmed |
| Product Specification | DIN 17102 | Applied |
| Quality letter | StE = basic / room temperature | Confirmed |
| Steel type | Killed, weldable, fine grain | Confirmed |
| Usual delivery | Normalized | Confirmed |
| Yield idea | 285 MPa at ≤16 mm | Confirmed |
| Related modern names | P275N / S275N | Confirm on order |
| Supply role | Global steel mill sourcing partner | SHH STEEL |
| Markets | USA, Europe, Middle East, Southeast Asia | FOB / CIF as ordered |
| Certification | EN 10204 3.1 or 3.2 / third-party | As ordered |
This plate sits in structural steel plates and high strength low alloy plates. Vessel comparisons belong next to pressure vessel steel plates and ASME SA516, not as automatic substitutes.
Chemical Composition
DIN 17102 StE285 / StE 285 uses a manganese band between StE255 and StE355.
Heat Analysis — DIN 17102 StE285 (typical cast / ladle limits)
| Element | Heat Analysis (%) |
|---|---|
| Carbon (C), max | 0.18 |
| Silicon (Si), max | 0.40 |
| Manganese (Mn) | 0.60 – 1.40 |
| Phosphorus (P), max | 0.035 |
| Sulfur (S), max | 0.030 |
| Nitrogen (N), max | 0.020 |
| Aluminium (Al), min (total, when used for grain) | 0.020 |
| Chromium (Cr), max | 0.30 |
| Copper (Cu), max | 0.20 |
| Molybdenum (Mo), max | 0.08 |
| Nickel (Ni), max | 0.30 |
| Niobium (Nb), max | 0.03 |
| Nb + Ti + V, max | 0.05 |
StE255 manganese is 0.50–1.30. StE355 manganese is 0.90–1.65. Do not ship a 355 heat as StE285 because a coupon came in low. TStE285 and EStE285 tighten P and S. If the order dual-names P275N, residuals must also fit EN 10028-3 of the named edition. SHH STEEL reports heat analysis on every certificate and product analysis when the order names it.
Mechanical Properties
Yield starts at 285 MPa at ≤16 mm and falls as thickness rises. Tensile on thinner product is typically 390–510 MPa.
Tensile and Yield — DIN 17102 StE285 (typical published idea)
| Thickness idea | Yield ReH min (MPa) | Tensile Rm (MPa) |
|---|---|---|
| ≤16 mm | 285 | 390 – 510 |
| Increasing thickness | steps down | steps down |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
Confirm the ordered thickness against the named edition. Published mill tables sometimes list 265 MPa at thicker bands. That is thickness reduction, not a different grade. Do not treat 390–510 MPa tensile as permission to stamp SA516 Gr.60, SA285 Gr.B or SA662 Gr.A.
Impact is the reason buyers pick DIN 17102 instead of DIN 17100. StE285 is the basic quality. If the drawing names −20 °C or −50 °C, the order may actually need TStE285 or EStE285, or a dual EN name such as S275NL / P275NL1. Write the test temperature on the purchase order.
How StE / WStE / TStE / EStE Differ at 285
| Grade | Quality idea | Typical modern comparison |
|---|---|---|
| StE285 | Basic / room-temperature fine grain | P275N / S275N |
| WStE285 | Elevated temperature (Warm) | P275NH |
| TStE285 | Low temperature (Tief) | P275NL1 / S275NL |
| EStE285 | Special low temperature | P275NL2 |
Same 285 MPa yield idea. Different impact and, on T/E, tighter residuals. SHH STEEL will not ship StE285 against a TStE285 impact temperature without a written change.
Material Comparison
| Grade | Route | Strength idea | Swap? |
|---|---|---|---|
| DIN 17102 StE255 | Normalized fine grain | 255 / ~360–480 | No |
| DIN 17102 StE285 | Normalized fine grain | 285 / ~390–510 | This page |
| DIN 17102 StE355 | Normalized fine grain | 355 / 490–630 | No |
| P275N / S275N | EN 10028-3 / EN 10025-3 | Closest modern replacement | Comparison only |
| SA516 Gr.60 | Carbon vessel | 220 / 415–550 | No |
| SA516 Gr.70 | Carbon vessel | 260 / 485–620 | No |
| SA285 Gr.C | Carbon vessel | Different book | No |
| ASTM A36 steel plate | Structural carbon | Not fine-grain DIN 17102 | No |
SA203 Gr.A, SA299 Gr.A and SA737 Gr.B are vessel or HSLA plates. None of them is StE285.
Fine-Grain Structural and Vessel-Adjacent Service
DIN 17102 StE285 / StE 285 is selected for welded structures that need fine-grain toughness at the 285 MPa yield step: frames, tanks, machinery and some pressure equipment still calculated to the old German book. It is the practical DIN counterpart to P275N / S275N. It is not automatically a Section VIII plate. If the vessel is ASME, the drawing should name an ASME or ASTM grade such as SA516 Gr.60, SA662 Gr.B or SA537 Cl.1.
SHH STEEL supplies this plate to fabricators in the United States, Europe, the Middle East and Southeast Asia. It is not nickel low-temp plate like SA203 Gr.D or SA203 Gr.E. It is not QT Ni-Cr-Mo like SA543 Type B Cl.1. It is not Cr-Mo like SA387 Gr.22 Cl.2. Stainless inquiries belong on ASME SA240 or ASTM A240.
Weldability
StE285 is killed fine-grain C-Mn steel. Welding is production welding, and Code welding when the equipment is a vessel.
Qualify procedures to the applicable code. For ASME work that happens to use a dual-named plate, use ASME Section IX. Consumables should match the 390–510 MPa tensile band, not a SA387 Gr.12 Cl.2 Cr-Mo procedure and not a QT procedure from SA517 Gr.F. Preheat follows thickness and hydrogen control. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.
Heat Treatment and Delivery Condition
Usual delivery from SHH STEEL is normalized DIN 17102 StE285 / StE 285 plate. Fine-grain practice and normalize are the product idea. As-rolled shipment is a special agreement.
If the vessel or structure will see PWHT, test coupons shall follow a simulated cycle when the order names it. This is not the QT route used on SA738 Gr.A or SA737 Gr.C. Special heat treatment, extra simulation or third-party hold points add time. Plan about two months when those extras are on the order.
The certificate lists DIN 17102 StE285 (and StE 285 if requested); heat number; heat analysis; product analysis when ordered; tensile results to the correct thickness column; normalize statement; impact when ordered. Certificates may be EN 10204 3.1 or EN 10204 3.2. Dual marking to S275N or P275N is available only when chemistry, tensile and impact all fit the named EN edition.
Dimensions
Usual supply range from SHH STEEL for StE285 fine grain steel:
- Thickness: commonly 6 mm – 150 mm. Confirm any request above 150 mm against mill capability
- Width: 1500 mm – 4000 mm
- Length: 3000 mm – 12000 mm
- Cut-to-length plates and nest sizes inside those limits
Ship plate inquiries belong on shipbuilding steel plates or BV Rules. Weathering plate belongs on EN 10025-5 or Corten A/B. TMCP fine-grain structural belongs on EN 10025-4. QT structural belongs on EN 10025-6. Ordinary structural belongs on EN 10025-2 or JIS G3106.
Tolerances
Dimensional limits follow the mill rolling standard named on the order, commonly EN 10029 for plate when the buyer is in Europe. Do not apply ASTM A36/A36M structural tolerances to a DIN fine-grain plate without writing them. UT to EN 10160 or ASTM A435 / A577 / A578 is added when the order names it.
Supplementary Requirements
Most export DIN 17102 StE285 / StE 285 orders add extras. SHH STEEL does not assume them.
Charpy details. Temperature, energy, location and orientation. If the temperature is −40 °C or −50 °C, confirm whether the grade should be TStE285 or EStE285.
Simulated PWHT. When the equipment will be stress-relieved.
NDE. UT per the named method.
Z-direction / through-thickness testing. When the drawing names Z15 / Z25 / Z35.
Third-party. EN 10204 3.2, with inspectors arranged for US, European or Middle East documentation packages.
Equivalent Material Grades
These names are project-comparison grades. They are not automatic substitutes.
| Designation | Standard / region | Notes |
|---|---|---|
| DIN 17102 StE285 / StE 285 | DIN 17102 | Name on this page |
| P275N / 1.0486 | EN 10028-3 | Closest modern vessel comparison |
| S275N | EN 10025-3 | Closest modern structural comparison |
| WStE285 | DIN 17102 | Elevated-temperature sister ≈ P275NH |
| TStE285 | DIN 17102 | Low-temperature sister ≈ P275NL1 / S275NL |
| EStE285 | DIN 17102 | Special low-temperature sister ≈ P275NL2 |
| SA516 Gr.60 | SA-516 | Vessel carbon, different book |
| ASTM A516 | A516 family | Related vessel family |
| ASTM A285 | A285 family | Related low-strength vessel family |
ASME SA515 and ASME SA662 are not StE285.
Applications
| Industry | Typical components |
|---|---|
| Fine-grain welded structures | DIN 17102 StE285 frames and StE 285 plates |
| Tanks and process steelwork | STE285 courses |
| Dual-certified export | StE285 / S275N or P275N plate from SHH STEEL when chemistry fits |
| Fabrication | StE285 cut to nest sizes |
Stainless inquiries belong on stainless steel products, JIS G4305 or AISI stainless. Other vessel comparisons: SA203 Gr.B, SA302 Gr.B, A516 Grade 60, SA533 Type C Cl.2, SA517 Gr.P.
Global Delivery & Markets
SHH STEEL is a global steel mill sourcing partner with mill partnerships in China. We supply ASTM, ASME, EN, DIN and JIS steel to the USA, Europe, Middle East and Southeast Asia. Origin is mill-direct, China origin. We do not treat DIN 17102 StE285 as an Asia-only stock item. Inquiry packages are written for fabricators and EPC buyers in Houston, Rotterdam, Antwerp, Jebel Ali, Dammam, Singapore and surrounding ports.
Typical trade terms:
- FOB Shanghai
- CIF Houston
- CIF Rotterdam
- CIF Jebel Ali
- Other CIF / CFR ports on request (Los Angeles, New York, Hamburg, Genoa, Jeddah, Mundra, Ho Chi Minh)
Typical lead time for DIN 17102 StE285 / StE 285:
- Ex-stock / ready plate: about 5–7 days after order confirmation, subject to actual warehouse size and cutting
- Mill rolling, standard normalize: about 45 days
- Special heat treatment, simulated PWHT, 3.2 hold or extra NDE: about 2 months
Documents travel with the cargo: mill certificate, packing list, commercial invoice, bill of lading, and EN 10204 3.1 or 3.2 as ordered. Third-party inspection can be arranged before loading for US, European or Middle East projects. Packing is seaworthy, with edge protection and marking in English as specified on the order.
If the buyer needs dual S275N or P275N marking for a European file, say so on the inquiry. If the buyer needs a PED / 3.2 file, say so on the inquiry. Do not assume a domestic Chinese certificate format will pass at destination.
Why Choose SHH STEEL
SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). We supply ASTM / ASME / EN / DIN / JIS steel to the USA, Europe, the Middle East and Southeast Asia. On DIN 17102 StE285 / StE 285 that means mill pricing, StE285 chemistry reported, recorded normalize, tensile results to the correct thickness column, 285 MPa yield in the thin band, 3.1 as standard and 3.2 when specified. Trade terms include FOB Shanghai and CIF Houston / Rotterdam / Jebel Ali.
We keep the grade on the order. StE285 is not StE255. StE285 is not StE355. StE285 is not TStE285. DIN 17102 is not DIN 17100. StE285 is not SA516 Gr.70. StE285 is not SA387 Gr.22 Cl.2. If the drawing names 355 MPa, we will not ship StE285 and call it close.
Company scope: global steel mill sourcing partner – SHH STEEL.
FAQ
- What names are used for DIN 17102 StE285?
- Buyers write DIN 17102 StE285, StE 285, STE285, DIN17102 StE285 and StE285 steel plate. SHH STEEL prints the wording on the purchase order.
- What is the yield strength of StE285?
- 285 MPa minimum at ≤16 mm. Yield drops as thickness increases. Tensile is typically 390–510 MPa on thinner product.
- Is StE285 the same as P275N or S275N?
- They are the usual comparison grades. Dual marking is possible only when chemistry, tensile and impact all fit the named EN edition.
- How is StE285 different from StE255 and StE355?
- StE255 is the lower step at 255 MPa. StE355 is the higher step at 355 MPa. StE285 is the 285 MPa step that maps to P275N / S275N.
- Is StE285 the same as SA516 Grade 60?
- No. Different book, different yield and impact rules.
- Can SHH STEEL ship DIN 17102 StE285 outside Asia?
- Yes. SHH STEEL is a global steel mill sourcing partner. We supply this plate to the USA, Europe, the Middle East and Southeast Asia on FOB Shanghai or CIF Houston / Rotterdam / Jebel Ali.
- What is the delivery time for StE285?
- Ex-stock about 5–7 days. Standard mill normalize about 45 days. Special heat treatment, simulated PWHT or 3.2 inspection about 2 months.
- Can SHH STEEL issue EN 10204 3.2 for StE285?
- Yes. EN 10204 3.1 is standard. EN 10204 3.2 is arranged when written on the order.
Conclusion
DIN 17102 StE285 Steel Plate, also searched as StE 285, STE285 and DIN17102 StE285, is weldable normalized fine-grain steel under DIN 17102 at the 285 MPa yield step, typically 390–510 MPa tensile, and the usual DIN counterpart to P275N / S275N. Whether the inquiry says DIN 17102 StE285, StE 285 or StE285 steel plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with StE285 chemistry, recorded normalize, and EN 10204 3.1 or 3.2 certification.
SHH STEEL supplies DIN 17102 StE285 / StE285 Fine Grain Steel to the USA, Europe, the Middle East and Southeast Asia for work that actually names this grade. FOB Shanghai / CIF Houston / Rotterdam / Jebel Ali.
Contact SHH STEEL for mill rolling, stock inquiry, dual S275N or P275N marking when eligible, impact testing, 3.2 inspection or a quotation.
DIN 17102 StE285 Steel Plate, StE 285, STE285, DIN17102 StE285, P275N, S275N, fine grain structural steel, StE285 supplier, global steel mill sourcing partner SHH STEEL








