GB/T 713.3 11MnNiMoDR Steel Plate | 11MnNiMoDR Low Temp Vessel Plate

11MnNiMoDR is the grade GB/T 713.3 uses as the naming example. The standard itself writes: 11 = average carbon in parts per ten thousand, MnNiMo = manganese, nickel and molybdenum, DR = low-temperature vessel. That is why buyers search GB/T 713.3 11MnNiMoDR, 11MnNiMoDR steel plate and 11MnNiMoDR low temp vessel plate.

It is one of the four grades added when GB/T 713.3-2023 replaced GB/T 3531-2014. The others are Q420DR, Q460DR and 13MnNiDR. It is also the only grade in GB/T 713.3 Table 2 delivered quenched and tempered. The rest of the book is N or N+T. Do not order 11MnNiMoDR and expect a normalize-only plate.

Yield is 420 MPa at 5–60 mm. Tensile is 560–670 MPa. Impact is −70 °C, 60 J. SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) for this grade.

Do not ship 09MnNiDR against 11MnNiMoDR. 09MnNiDR is also −70 °C, but it is N or N+T, lower strength, and molybdenum is only a residual limit. Do not ship 13MnNiDR. That grade is −60 °C and N or N+T. Do not ship 13MnNiMoR. That grade is GB/T 713.2 elevated-temperature plate, not a low-temperature QT plate.

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

This plate sits in pressure vessel steel plates. ASME comparisons belong on ASME SA203, ASME SA662 and ASME SA517, not as automatic substitutes.

This plate sits in pressure vessel steel plates. ASME comparisons belong on ASME SA203, ASME SA662 and ASME SA517, not as automatic substitutes.

Heat analysis follows GB/T 713.3 Table 1. Product analysis follows GB/T 713.1. Write both on the PO if the destination file needs finished-plate chemistry.

Heat Analysis and Product Analysis — GB/T 713.3 11MnNiMoDR

Nickel and molybdenum are both required. Note b in GB/T 713.3: when thickness is less than 12 mm, the molybdenum lower limit is not required. Above 12 mm, keep Mo in 0.10–0.30%. That footnote is easy to miss on a thin-plate order. SHH STEEL reports heat analysis on every certificate and product analysis when the order names it.

This is the high-strength −70 °C grade in GB/T 713.3. Strength comes from QT, not from a normalize route.

Tensile and Yield — GB/T 713.3 11MnNiMoDR

Elongation is 19% min. Impact is −70 °C, 60 J. Bend is 180°, D=3a. Delivery is quenched and tempered.

Do not quote 420 MPa yield on a 90 mm plate. Do not treat 560–670 MPa tensile as permission to stamp SA517 Gr.B or SA203 Gr.D. SA-517 is a different QT family. SA-203 Grade D is 3.5Ni.

Comparison names help a buyer search. They do not authorize substitution.

Buyers pick 11MnNiMoDR when the file wants −70 °C and more strength than 09MnNiDR. The extra strength comes from quench and temper plus a required molybdenum band. It is a 2023 addition, so older 3531 purchase specs will not list it. Confirm the drawing before rolling.

It is not an ASME Section VIII plate by default. An ASME file should name SA203 Gr.D, SA662 Gr.C or an SA-517 grade and then write the extras.

SHH STEEL supplies this plate to fabricators in the United States, Mexico, South America, Europe, the Middle East, Africa and Asia. It is not 9Ni plate under GB/T 713.4. Stainless inquiries belong on ASME SA240 or ASTM A240.

11MnNiMoDR is killed Mn-Ni-Mo vessel plate in the quenched-and-tempered condition. Treat welding as production welding, and as Code welding when the equipment is a vessel.

Qualify to the applicable code. ASME dual-name work uses ASME Section IX. Match consumables to the 560–670 MPa tensile band and the −70 °C toughness target. A 09MnNiDR normalize procedure is not automatically valid. A 13MnNiMoR procedure is the wrong book. Preheat and hydrogen control matter more on QT plate than on 16MnDR. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.

Usual delivery from SHH STEEL is quenched-and-tempered GB/T 713.3 11MnNiMoDR. That is the Table 2 delivery. Normalize-only shipment is not the default for this grade.

If the vessel will see PWHT, say so. Test coupons then follow a simulated cycle. Extra simulation, 3.2 hold points or special NDE add time. Plan about two months when those extras are on the order. QT plus simulated PWHT is not a 45-day stock item.

The certificate lists GB/T 713.3 11MnNiMoDR; heat number; heat analysis; product analysis when ordered; tensile to the correct thickness column; QT; impact at −70 °C. Certificates may be EN 10204 3.1 or EN 10204 3.2.

Usual supply range from SHH STEEL for 11MnNiMoDR low temp vessel plate:

• Thickness: commonly 5 mm – 100 mm
• 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 GB/T 713.1 and the mill rolling standard named on the order. Do not apply ASTM A36/A36M structural tolerances to a Chinese vessel plate without writing them. UT to GB/T 2970, JB/T 4730 / NB/T 47013.3, EN 10160 or ASTM A435 / A577 / A578 is added when the order names it.

Most export 11MnNiMoDR orders add extras. SHH STEEL does not assume them.

Charpy details. Temperature, energy, location and orientation. GB default is −70 °C / 60 J.

Product analysis. Add this when the destination file wants finished-plate chemistry.

Simulated PWHT. When the equipment will be stress-relieved. Write this on QT plate.

NDE. UT per the named method.

Z-direction. Z15 / Z25 / Z35 when the drawing names it.

HIC / NACE / SSC. Only when written.

Third-party. EN 10204 3.2, with inspectors arranged for US, Mexican, European, Middle East, Japanese or Korean documentation packages.

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.1, 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, JIS and GB steel to buyers outside a single region. Origin is mill-direct, China origin.

SHH STEEL has supplied steel plates to:

• North America: USA, Mexico
• South America: Argentina, Peru and other South American ports
• Central America: El Salvador
• Europe: Spain, Netherlands, Germany and surrounding ports
• Middle East: UAE, Saudi Arabia and nearby Gulf ports
• Africa: South Africa
• South / Southeast Asia: India, Thailand, Singapore, Vietnam, Philippines
• East Asia: Japan, Korea

Typical trade terms on this grade: FOB Shanghai, CIF Ho Chi Minh, CIF Barcelona, CIF Yokohama, plus Houston, Rotterdam, Jebel Ali, Singapore, Antwerp, Manzanillo, Busan, Hamburg, Durban, Laem Chabang, Mumbai, Callao, Buenos Aires and Manila.

Typical lead time for GB/T 713.3 11MnNiMoDR:

• Ex-stock: about 5–7 days when a QT plate is actually in yard
• Mill rolling, standard QT: about 45 days
• Simulated PWHT, 3.2 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. Packing is seaworthy, with edge protection and marking in English as specified on the order.

SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). We supply ASTM / ASME / EN / DIN / JIS / GB steel to the USA, Mexico, South America, Europe, the Middle East, Africa and Asia. On GB/T 713.3 11MnNiMoDR that means mill pricing, 11MnNiMoDR chemistry reported as heat analysis and as product analysis when ordered, recorded QT, tensile results to the correct thickness column, −70 °C impact, 3.1 as standard and 3.2 when specified.

We keep the grade on the order. 11MnNiMoDR is not 09MnNiDR. 11MnNiMoDR is not 13MnNiDR. 11MnNiMoDR is not Q420DR. 11MnNiMoDR is not 13MnNiMoR. 11MnNiMoDR is not SA517 Gr.B. If the drawing says normalize only, we will not ship QT and call it close. If the drawing says 09MnNiDR, we will not ship 11MnNiMoDR just because both are −70 °C.

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

GB/T 713.3 11MnNiMoDR Steel Plate is a 2023-added Chinese −70 °C Mn-Ni-Mo pressure-vessel plate at the 420 MPa yield step, 560–670 MPa tensile at 5–60 mm, quenched-and-tempered delivery. Whether the inquiry says GB/T 713.3 11MnNiMoDR or 11MnNiMoDR Low Temp Vessel Plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with 11MnNiMoDR chemistry, heat and product analysis when ordered, recorded QT, −70 °C impact, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies GB/T 713.3 11MnNiMoDR Low Temp Vessel Plate to the USA, Mexico, South America, Europe, the Middle East, Africa and Asia for work that actually names this grade. FOB Shanghai / CIF Ho Chi Minh / Barcelona / Yokohama.

Contact SHH STEEL for mill rolling, stock inquiry, QT, 3.2 inspection or a quotation.

GB/T 713.3 11MnNiMoDR Steel Plate, 11MnNiMoDR QT vessel plate, 11MnNiMoDR -70°C, 11MnNiMoDR supplier, global steel mill sourcing partner SHH STEEL