DIN 17102 TStE420 Steel Plate | TStE420 Fine Grain Steel

DIN 17102 TStE420, also written TStE 420, TSTE420, DIN17102 TStE420 and TStE420 steel plate, is a weldable normalized fine-grain structural steel under DIN 17102. The T prefix means Tief — low-temperature quality. Yield in the thin band is still 420 MPa. Tensile at ≤70 mm is still typically 530–680 MPa. This is the DIN 17102 low-temperature line that conversion tables map to P420NL1 and S420NL. It is not TStE380 and not TStE460. 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 “420 NL fine grain” is incomplete if the drawing still names DIN. Write DIN 17102 TStE420 and the impact temperature. Do not ship StE420 or WStE420 against a TStE420 drawing. Do not ship TStE355 or TStE460 because the yield step is wrong.

DIN 17102 is a legacy specification. New European structural work usually names S420NL under EN 10025-3. New pressure work usually names P420NL1. Replacement projects still name TStE420 when an old German calculation or mill qualification stays on DIN.

This page is not DIN 17100 St52-3. It is 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 TStE420 / TStE 420 tightens phosphorus and sulfur versus StE420 / WStE420. Product analysis is slightly wider than heat analysis.

Heat Analysis and Product Analysis — DIN 17102 TStE420 (typical limits)

StE420 / WStE420 use C 0.20 max, P 0.035 and S 0.030. EStE420 is tighter still. Do not ship a StE420 heat as TStE420. If the order dual-names P420NL1 or S420NL, residuals must also fit the named EN edition. SHH STEEL reports heat analysis on every certificate and product analysis when the order names it.

Room-temperature yield and tensile follow the 420 family. Low-temperature impact is why the T letter exists.

Room-temperature properties — DIN 17102 TStE420 (typical published bands)

Do not quote 420 MPa yield on an 80 mm plate. Do not treat 530–680 MPa tensile as permission to stamp SA516 Gr.70, SA662 Gr.A or SA285 Gr.B.

Impact for TStE420 is the low-temperature package. S420NL comparison is commonly −50 °C. P420NL1 comparison is commonly −40 °C. Write the test temperature, orientation and energy on the order. If the drawing names a still colder package, the grade may be EStE420 / P420NL2, not TStE420.

Same 420 MPa yield idea. Different impact package and, on T/E, tighter residuals. SHH STEEL will not ship TStE420 against an EStE420 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 TStE420.

DIN 17102 TStE420 / TStE 420 is selected for welded structures and pressure equipment that need fine-grain toughness at low temperature at the 420 MPa yield step: tanks, cold-climate steelwork and other work still calculated to the old German book. It is the practical DIN counterpart to S420NL / P420NL1. 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.70, SA662 Gr.C 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. TStE420 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.

TStE420 is killed fine-grain C-Mn-microalloy steel with tighter P / S than StE420. 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 530–680 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 TStE420 / TStE 420 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.B 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 TStE420 (and TStE 420 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 S420NL or P420NL1 is available only when chemistry, tensile and impact all fit the named EN edition.

Usual supply range from SHH STEEL for TStE420 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 TStE420 / TStE 420 orders add extras. SHH STEEL does not assume them.

Charpy details. Temperature, energy, location and orientation. This is the reason TStE420 exists. Write −20 °C, −40 °C or −50 °C explicitly.

Product analysis. Add this when the destination file wants finished-plate chemistry, not only ladle chemistry.

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 TStE420.

Stainless inquiries belong on stainless steel products, JIS G4305 or AISI stainless. Other vessel comparisons: SA203 Gr.B, SA302 Gr.B, A516 Grade 70, SA533 Type C Cl.2, SA517 Gr.P, SA738 Gr.C.

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 TStE420 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 TStE420 / TStE 420:

• 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 S420NL or P420NL1 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.

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 TStE420 / TStE 420 that means mill pricing, TStE420 chemistry with tighter P / S reported as heat analysis and as product analysis when ordered, 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. TStE420 is not StE420. TStE420 is not WStE420. TStE420 is not EStE420. TStE420 is not TStE380. TStE420 is not TStE460. DIN 17102 is not DIN 17100. TStE420 is not SA516 Gr.70. TStE420 is not SA387 Gr.22 Cl.2. If the drawing names basic StE420, 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 TStE420 Steel Plate, also searched as TStE 420, TSTE420 and DIN17102 TStE420, is weldable normalized fine-grain steel under DIN 17102 for low-temperature service at the 420 MPa yield step, typically 530–680 MPa tensile at ≤70 mm, and the usual DIN counterpart to S420NL / P420NL1. Whether the inquiry says DIN 17102 TStE420, TStE 420 or TStE420 steel plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with TStE420 chemistry, recorded normalize, named impact temperature, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies DIN 17102 TStE420 / TStE420 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 S420NL or P420NL1 marking when eligible, impact testing, 3.2 inspection or a quotation.

DIN 17102 TStE420 Steel Plate, TStE 420, TSTE420, DIN17102 TStE420, P420NL1, S420NL, low temperature fine grain steel, TStE420 supplier, global steel mill sourcing partner SHH STEEL