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GB/T 713 15CrMoR steel plate, also written as 15CrMoR pressure vessel steel plate, GB713 15CrMoR, 15CrMoR Cr-Mo plate, is a Cr-Mo alloy boiler and pressure vessel plate under GB/T 713 for elevated-temperature service, typically supplied normalized and tempered (temper ≥650°C), with about 295 MPa min yield (6–60 mm), tensile 450-590 MPa and Charpy at 20°C. Gangsteel (HENAN GANG IRON AND STEEL) produces and exports 15CrMoR plates cut to size with MTC for boilers, heat exchangers and petrochemical 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 15CrMoR. Verify the contracted edition and purchase-order supplements before ordering.
| Element | C | Si | Mn | P | S | Cr |
|---|---|---|---|---|---|---|
| 15CrMoR, % | 0.12-0.18 | 0.15-0.40 | 0.40-0.70 | 0.025 max | 0.010 max | 0.80-1.20 |
| Element | Mo | Cu | Ni | Alt | — | — |
|---|---|---|---|---|---|---|
| 15CrMoR, % | 0.45-0.60 | 0.30 max | 0.30 max | per edition | — | — |
Per GB/T 713.2 heat analysis. Approx. 1Cr-0.5Mo class for elevated-temperature strength.
| Thickness | Yield ReL, min | Tensile Rm | Elongation A, min | Impact KV2 |
|---|---|---|---|---|
| 6–60 mm | 295 MPa | 450-590 MPa | 19% | 20°C, ≥31 J |
| >60–100 mm | 275 MPa | 450-590 MPa | 19% | 20°C, ≥31 J |
| >100–150 mm | 255 MPa | 440-580 MPa | 19% | 20°C, ≥31 J |
Per GB/T 713.2. N+T delivery. Elevated-temperature tensile available when specified.
Normalized + tempered (temper ≥650°C). Optional simulated PWHT. Tensile, Charpy at 20°C, bend. UT / hardness / elevated-temperature tensile and 3.1/3.2 MTC by agreement.
Commonly 6–150 mm, width 1500-4000 mm, length 6000-18000 mm.
Boiler drums, heat exchangers and elevated-temperature pressure parts in the 15CrMoR / 1.25Cr-0.5Mo class.
| Standard | Comparable grade (approximate) |
|---|---|
| GB/T 713 | 15CrMoR |
| ASTM/ASME | ASTM A387 / SA387 / A387 Grade 12 (approx. for Cr-Mo class) |
| EN 10028-2 | 13CrMo4-5 (approx. for 1Cr-Mo class) |
| Related GB/T 713 | Q245R | Q345R | Q370R | Q420R | Q460R |
Equivalents are engineering references only. Dual certification requires the stricter combined limits on the PO and MTC.
It is a Cr-Mo boiler and pressure vessel steel under GB/T 713 / GB/T 713.2. a Cr-Mo alloy boiler and pressure vessel plate under GB/T 713 for elevated-temperature service, typically supplied normalized and tempered (temper ≥650°C), with about 295 MPa min yield (6–60 mm), tensile 450-590 MPa and Charpy at 20°C. Gangsteel lists the official mill/certificate grade as 15CrMoR. See the full GB/T 713 15CrMoR page for chemistry and mechanical tables.
About 295 MPa min for 6–60 mm; 275/255 MPa in thicker bands. Typical tensile bands are shown in the mechanical properties table on this page; confirm the contracted GB/T 713.2 edition before design.
20°C standard for this Cr-Mo grade. Always state the required Charpy temperature and energy on the purchase order.
Normalized + tempered (temper ≥650°C). Optional simulated PWHT. Tensile, Charpy at 20°C, bend. UT / hardness / elevated-temperature tensile and 3.1/3.2 MTC by agreement.
15CrMoR is in the Cr-Mo alloy family under GB/T 713.2. Related alloy grades: 14Cr1MoR / 12Cr2Mo1R / 12Cr1MoVR / 12Cr2Mo1VR / 07Cr2AlMoR / 18MnMoNbR / 13MnNiMoR. Carbon workhorses remain Q345R / Q245R.
They are approximate engineering counterparts only. Compare with ASTM A387 / SA387 and EN 10028-2 13CrMo4-5. Dual certification requires the stricter combined limits.
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 6–150 mm, 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
