DIN 17102 TStE255 Steel Plate | TStE255 Fine Grain Steel supplier

DIN 17102 TStE255, also written TStE 255, TSTE255, DIN17102 TStE255 and TStE255 steel plate, is a weldable normalized fine-grain structural steel under DIN 17102. The T prefix means Tief — low-temperature quality. Yield in the lowest thickness band is still 255 MPa. Tensile on thinner product is still typically 360–480 MPa. What changes versus StE255 and WStE255 is the toughness package and tighter phosphorus and sulfur. 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 “255 fine grain” is incomplete. Write DIN 17102 TStE255 and the impact temperature. Do not ship StE255 or WStE255 against a TStE255 drawing because all three look like 255 MPa plate. Do not treat TStE255 as TStE285. TStE285 is the next strength step and is the grade usually compared with P275NL1.

DIN 17102 is a legacy specification. New European structural work that wants low-temperature fine-grain steel at this strength idea usually names S275NL under EN 10025-3. New pressure work usually names P275NL1. Those EN names line up more cleanly with TStE285, not TStE255. Replacement projects still name TStE255 when an old German calculation or mill qualification stays on DIN.

This page is not DIN 17100 St37-3. It is not SA516 Gr.60 and not SA516 Gr.70. It is not nickel plate like SA203 Gr.A. 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.

This plate sits in structural steel plates, high strength low alloy plates and next to pressure vessel steel plates. ASME carbon comparisons belong on ASME SA516 and ASME SA662, not as automatic substitutes.

DIN 17102 TStE255 / TStE 255 tightens phosphorus and sulfur versus StE255 / WStE255. Carbon stays in the 255 family.

Heat Analysis — DIN 17102 TStE255 (typical cast / ladle limits)

StE255 / WStE255 use P 0.035 and S 0.030. EStE255 is tighter still. Do not ship a StE255 heat as TStE255. TStE355 manganese is 0.90–1.65. TStE255 manganese starts at 0.50. SHH STEEL reports heat analysis on every certificate and product analysis when the order names it. If a Houston, Rotterdam or Jebel Ali specification tightens P and S further, write that on the order.

Room-temperature yield and tensile follow the 255 family. Low-temperature impact is why the T letter exists.

Room-temperature properties — DIN 17102 TStE255 (typical published idea)

Yield and tensile both step down with thickness. Confirm the ordered thickness against the named edition of DIN 17102. Do not quote 255 MPa yield on a thick plate without reading the thickness column. Do not treat 360–480 MPa tensile as permission to stamp SA516 Gr.55, SA285 Gr.A or SA662 Gr.A.

Impact for TStE255 is the low-temperature package. S275NL / P275NL1 comparison impact is commonly −20 °C to −50 °C depending on the EN name. Write the test temperature, orientation and energy on the order. If the drawing names a still colder package, the grade may be EStE255, not TStE255.

Same 255 MPa yield idea. Different impact package and, on T/E, tighter residuals. SHH STEEL will not ship TStE255 against an EStE255 impact temperature without a written change.

SA285 Gr.C, SA299 Gr.A and SA737 Gr.B are also vessel or HSLA plates. None of them is TStE255.

DIN 17102 TStE255 / TStE 255 is selected for welded structures and pressure equipment that need fine-grain toughness at low temperature at the lowest DIN 17102 yield step: lighter tanks, cold-climate steelwork and other work still calculated to the old German book. It is not a high-strength substitute for TStE355. It is not automatically an ASME Section VIII plate. If the vessel is ASME, the drawing should name an ASME or ASTM grade such as SA516 Gr.60, SA662 Gr.A 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. Those grades use nickel for toughness. TStE255 uses fine grain, tighter residuals and normalize. 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.

TStE255 is killed fine-grain C-Mn steel with tighter P / S than StE255. 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 360–480 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.

Usual delivery from SHH STEEL is normalized DIN 17102 TStE255 / TStE 255 plate. Fine-grain practice and normalize are the product idea. As-rolled shipment is a special agreement and is a poor fit for a low-temperature quality.

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 TStE255 (and TStE 255 if requested); heat number; heat analysis; product analysis when ordered; tensile results to the correct thickness column; normalize statement; impact at the named temperature. Certificates may be EN 10204 3.1 or EN 10204 3.2. Dual marking to S275NL or P275NL1 is not automatic. Those EN names sit closer to TStE285.

Usual supply range from SHH STEEL for TStE255 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.

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.

Most export DIN 17102 TStE255 / TStE 255 orders add extras. SHH STEEL does not assume them.

Charpy details. Temperature, energy, location and orientation. This is the reason TStE255 exists. Write −20 °C, −40 °C or −50 °C explicitly.

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.

These names are project-comparison grades. They are not automatic substitutes.

ASME SA515 and ASTM A285 are not TStE255.

Stainless inquiries belong on stainless steel products, JIS G4305 or AISI stainless. Other vessel comparisons: SA203 Gr.B, SA302 Gr.A, A516 Grade 60, SA533 Type C Cl.2, SA517 Gr.P.

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 TStE255 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 TStE255 / TStE 255:

• 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 actually needs TStE285 / S275NL / P275NL1, 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.

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 TStE255 / TStE 255 that means mill pricing, TStE255 chemistry with tighter P / S reported, recorded normalize, tensile results to the correct thickness column, impact at the named low temperature, 3.1 as standard and 3.2 when specified. Trade terms include FOB Shanghai and CIF Houston / Rotterdam / Jebel Ali.

We keep the prefix and the number on the order. TStE255 is not StE255. TStE255 is not WStE255. TStE255 is not EStE255. TStE255 is not TStE285. TStE255 is not TStE355. DIN 17102 is not DIN 17100. TStE255 is not SA516 Gr.70. TStE255 is not SA387 Gr.22 Cl.2. If the drawing names basic StE255, we will not ship a colder impact package and call the grades the same.

Company scope: global steel mill sourcing partner – SHH STEEL.

DIN 17102 TStE255 Steel Plate, also searched as TStE 255, TSTE255 and DIN17102 TStE255, is weldable normalized fine-grain steel under DIN 17102 for low-temperature service at the lowest strength step in that book, 255 MPa yield in the lowest thickness band and typically 360–480 MPa tensile. Whether the inquiry says DIN 17102 TStE255, TStE 255 or TStE255 steel plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with TStE255 chemistry, recorded normalize, named impact temperature, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies DIN 17102 TStE255 / TStE255 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, impact testing, 3.2 inspection or a quotation.

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