GB/T 713.3 Q460DR Steel Plate | Q460DR Low Temp Vessel Plate

Q460DR is the highest strength-named grade in GB/T 713.3-2023. The letters mean Q = yield, 460 = minimum yield in MPa, DR = low-temperature vessel. Buyers search GB/T 713.3 Q460DR, Q460DR steel plate and Q460DR low temp vessel plate. It is one of the four grades added when GB/T 713.3 replaced GB/T 3531-2014. The other three additions are Q420DR, 13MnNiDR and 11MnNiMoDR.

Yield is 460 MPa at 6–20 mm. Tensile is 630–730 MPa. Delivery is normalized or normalized and tempered. Impact is −40 °C, 60 J, plus lateral expansion not less than 0.53 mm. That extra impact rule applies to Q420DR and Q460DR only. SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) for this grade.

Do not ship Q460R against Q460DR. Q460R is GB/T 713.2 room/elevated-temperature plate. Q460DR is GB/T 713.3 −40 °C plate with required nickel, vanadium and niobium. Do not ship Q420DR against Q460DR. Yield and tensile are not the same. Do not ship 16MnDR. 16MnDR is also −40 °C, but yield is 315 MPa. Do not ship 11MnNiMoDR. That grade is QT and −70 °C.

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

This plate sits in pressure vessel steel plates. ASME comparisons belong on ASME SA537 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 Q460DR

Compared with Q420DR, Q460DR raises nickel minimum, vanadium and nitrogen allowance. That is the strength step. A heat that meets Q420DR is not automatically Q460DR. SHH STEEL reports heat analysis on every certificate and product analysis when the order names it.

This is the top −40 °C strength step in GB/T 713.3 Table 2.

Tensile and Yield — GB/T 713.3 Q460DR

Elongation is 18% min. Impact is −40 °C, 60 J. Lateral expansion shall not be less than 0.53 mm. Bend is 180°, D=3a. Delivery is N or N+T.

Table 2 lists the usual Q460DR band as 6–20 mm. Confirm any request above 20 mm against mill capability before promising yield. Do not treat 630–730 MPa tensile as permission to stamp SA537 Cl.2 or SA517 Gr.B without checking impact temperature, energy and lateral expansion.

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

Buyers pick Q460DR when they want the highest −40 °C strength step in GB/T 713.3 and do not want to jump to QT 11MnNiMoDR. Impact stays at −40 °C. If the file needs −50 °C, −60 °C or −70 °C, look at 15MnNiNbDR, 13MnNiDR, 09MnNiDR or 11MnNiMoDR instead.

It is not an ASME Section VIII plate by default. An ASME file should name SA537 Cl.2 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. Stainless inquiries belong on ASME SA240 or ASTM A240.

Q460DR is killed Ni-V-Nb high-strength low-temperature vessel plate. 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 630–730 MPa tensile band and the −40 °C toughness target, including lateral expansion when the WPS needs it. A Q420DR procedure is not automatically valid. A Q460R procedure is the wrong book. A 16MnDR procedure is the wrong strength. Preheat and hydrogen control matter at this tensile level. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.

Usual delivery from SHH STEEL is normalized or normalized-and-tempered GB/T 713.3 Q460DR. As-rolled is not the default.

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.

The certificate lists GB/T 713.3 Q460DR; heat number; heat analysis; product analysis when ordered; tensile to the 6–20 mm column; N or N+T; impact at −40 °C; lateral expansion. Certificates may be EN 10204 3.1 or EN 10204 3.2.

Usual supply range from SHH STEEL for Q460DR low temp vessel plate:

• Thickness: commonly 6 mm – 20 mm per Table 2. Confirm any request above 20 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 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 Q460DR orders add extras. SHH STEEL does not assume them.

Charpy details. Temperature, energy, location, orientation and lateral expansion ≥0.53 mm.

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

Simulated PWHT. When the equipment will be stress-relieved.

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 Colombo, CIF Alexandria, CIF Valparaiso, plus Houston, Rotterdam, Jebel Ali, Singapore, Antwerp, Manzanillo, Busan, Hamburg, Durban, Port Klang, Santos, Gioia Tauro, Laem Chabang, Mumbai, Callao, Ho Chi Minh, Barcelona and Yokohama.

Typical lead time for GB/T 713.3 Q460DR:

• Ex-stock: about 5–7 days
• Mill rolling, standard N or N+T: 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 Q460DR that means mill pricing, Q460DR chemistry reported as heat analysis and as product analysis when ordered, recorded N or N+T, tensile results to the 6–20 mm column, −40 °C impact with lateral expansion, 3.1 as standard and 3.2 when specified.

We keep the grade on the order. Q460DR is not Q460R. Q460DR is not Q420DR. Q460DR is not 16MnDR. Q460DR is not 11MnNiMoDR. Q460DR is not SA537 Cl.2 unless both books are met. If the drawing says Q460R, we will not roll Q460DR and call the names close.

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

GB/T 713.3 Q460DR Steel Plate is a 2023-added Chinese −40 °C high-strength pressure-vessel plate at the 460 MPa yield step, 630–730 MPa tensile at 6–20 mm, N or N+T delivery, with lateral expansion not less than 0.53 mm. Whether the inquiry says GB/T 713.3 Q460DR or Q460DR Low Temp Vessel Plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with Q460DR chemistry, heat and product analysis when ordered, recorded N or N+T, −40 °C impact, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies GB/T 713.3 Q460DR 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 Colombo / Alexandria / Valparaiso.

Contact SHH STEEL for mill rolling, stock inquiry, N or N+T, 3.2 inspection or a quotation.

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