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GB/T 713 13MnNiMoR steel plate, also written as 13MnNiMoR pressure vessel steel plate, GB713 13MnNiMoR, 13MnNiMoR boiler plate, is a Mn-Ni-Mo alloy boiler and pressure vessel plate under GB/T 713 / GB/T 713.2, typically N+T (temper ≥620°C), with about 390 MPa min yield at 30–100 mm and tensile 570-720 MPa. Gangsteel (HENAN GANG IRON AND STEEL) produces and exports 13MnNiMoR plates cut to size with MTC for thick-wall high-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 13MnNiMoR. Verify the contracted edition and purchase-order supplements before ordering.
| Element | C | Si | Mn | P | S | Ni |
|---|---|---|---|---|---|---|
| 13MnNiMoR, % | 0.15 max | 0.15-0.50 | 1.20-1.60 | 0.020 max | 0.010 max | 0.60-1.00 |
| Element | Cr | Mo | Nb | Cu | — | — |
|---|---|---|---|---|---|---|
| 13MnNiMoR, % | 0.20-0.40 | 0.20-0.40 | 0.005-0.020 | 0.30 max | — | — |
Per GB/T 713.2 heat analysis. Ni+Mo improve toughness and strength for thick sections.
| Thickness | Yield ReL, min | Tensile Rm | Elongation A, min | Impact KV2 |
|---|---|---|---|---|
| 30–100 mm | 390 MPa | 570-720 MPa | 18% | 0°C / -20°C by agreement |
| >100–150 mm | 380 MPa | 570-720 MPa | 18% | per edition |
Per GB/T 713.2. N+T; -20°C impact may replace 0°C when ordered.
Normalized + tempered (temper ≥620°C). Optional PWHT simulation, UT, Z-test and 3.1/3.2 MTC.
Commonly about 30–150 mm, width 1500-4000 mm, length 6000-18000 mm.
Thick-wall high-pressure boilers and vessels requiring Mn-Ni-Mo toughness/strength.
| Standard | Comparable grade (approximate) |
|---|---|
| GB/T 713 | 13MnNiMoR |
| 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 Mn-Ni-Mo boiler and pressure vessel steel under GB/T 713 / GB/T 713.2. a Mn-Ni-Mo alloy boiler and pressure vessel plate under GB/T 713 / GB/T 713.2, typically N+T (temper ≥620°C), with about 390 MPa min yield at 30–100 mm and tensile 570-720 MPa. Gangsteel lists the official mill/certificate grade as 13MnNiMoR. See the full GB/T 713 13MnNiMoR page for chemistry and mechanical tables.
About 390 MPa min at 30–100 mm; ~380 MPa above 100 mm. Typical tensile bands are shown in the mechanical properties table on this page; confirm the contracted GB/T 713.2 edition before design.
0°C standard; -20°C available by agreement under GB/T 713.2. Always state the required Charpy temperature and energy on the purchase order.
Normalized + tempered (temper ≥620°C). Optional PWHT simulation, UT, Z-test and 3.1/3.2 MTC.
13MnNiMoR is in the Mn-Ni-Mo alloy family under GB/T 713.2. Related alloy grades: 15CrMoR / 14Cr1MoR / 12Cr2Mo1R / 12Cr1MoVR / 12Cr2Mo1VR / 07Cr2AlMoR / 18MnMoNbR. 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 about 30–150 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
