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GB/T 713 Q460R steel plate, also written as Q460R pressure vessel steel plate, GB713 Q460R, Q460R high-strength vessel plate, is the highest strength C-Mn / microalloyed vessel grade in the GB/T 713.2 QxxxR series, with about 460 MPa minimum yield in the thin band. Gangsteel (HENAN GANG IRON AND STEEL) produces and exports Q460R plates cut to size with MTC for high-strength pressure vessels.
Data source: Per GB/T 713 / GB/T 713.2-2023 (Steel plate, sheet and strip for pressure equipments — Part 2: Non-alloy and alloy steel with specified temperature properties; buyers still search “GB/T 713”). Official mill/certificate grade is Q460R. Verify the contracted edition and purchase-order supplements before ordering.
| Element | C | Si | Mn | P | S | Nb/V/Ti |
|---|---|---|---|---|---|---|
| Q460R, % | 0.20 max | 0.55 max | 1.20-1.70 | 0.025 max | 0.015 max | microalloy |
| Element | Cu | Ni | Cr | Mo | N | — |
|---|---|---|---|---|---|---|
| Q460R, % | 0.30 max | 0.80 max | 0.30 max | 0.20 max | ≤0.025 on request | — |
Per GB/T 713.2 heat analysis. Added in the 2023 revision; confirm microalloying and N limits on the contracted edition.
| Thickness | Yield ReL, min | Tensile Rm | Elongation A, min | Impact KV2 |
|---|---|---|---|---|
| 6–20 mm | 460 MPa | 630-750 MPa | 17% | per order |
| >20–30 mm | confirm mill table | 610-730 MPa | 17% | per order |
Per GB/T 713.2. Confirm full thickness/impact table with the mill for each order.
Normalized / fine-grain delivery as required by thickness. Optional UT, Z-test, elevated-temperature tensile and 3.1/3.2 MTC.
Commonly about 6–40 mm (confirm mill max), width 1500-4000 mm, length 6000-18000 mm.
High-strength pressure vessels, towers and mobile tanks designed to the 460 MPa yield class.
| Standard | Comparable grade (approximate) |
|---|---|
| GB/T 713 | Q460R |
| ASTM/ASME | ASTM A516 / A516 Grade 70 / SA516 Gr.70 (approx.; dual cert by agreement) |
| EN 10028-2 | P265GH / P355GH family (approx.) |
| Related GB/T 713 | Q245R | Q345R | Q370R | Q420R | 18MnMoNbR |
Equivalents are engineering references only. Dual certification requires the stricter combined limits on the PO and MTC.
It is a HSLA boiler and pressure vessel steel under GB/T 713 / GB/T 713.2. the highest strength C-Mn / microalloyed vessel grade in the GB/T 713.2 QxxxR series, with about 460 MPa minimum yield in the thin band. Gangsteel lists the official mill/certificate grade as Q460R. See the full GB/T 713 Q460R page for chemistry and mechanical tables.
About 460 MPa min in the thin band; confirm thicker bands with mill table. Typical tensile bands are shown in the mechanical properties table on this page; confirm the contracted GB/T 713.2 edition before design.
As specified on the purchase order under GB/T 713.2. Always state the required Charpy temperature and energy on the purchase order.
Normalized / fine-grain delivery as required by thickness. Optional UT, Z-test, elevated-temperature tensile and 3.1/3.2 MTC.
All sit in the GB/T 713.2 non-alloy / microalloy vessel family. Sister carbon grades: Q245R / Q345R / Q370R / Q420R. Hub: GB/T 713 Steel Plate.
No. They are often compared for design but chemistry, impact and delivery rules differ. See ASTM A516 and A516 Grade 70 / SA516 Gr.70. Dual certification needs the stricter combined limits on the PO and MTC.
EN 10204 3.1 as standard; 3.2 with third-party inspection when ordered. MTC lists heat analysis, mechanical tests, delivery condition and any optional UT / Z / HIC / elevated-temperature results.
Commonly about 6–40 mm (confirm mill max), width 1500-4000 mm, length 6000-18000 mm. Browse the GB/T 713 hub for the full grade list.
GB/T 713 Steel Plate | Q345R | Q245R | 15CrMoR | ASTM A516 | ASTM A387 | ASTM A537 | Pressure Vessel Steel Plate | Boiler Steel Plate
