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GB/T 713 14Cr1MoR steel plate, also written as 14Cr1MoR pressure vessel steel plate, GB713 14Cr1MoR, 14Cr1MoR Cr-Mo plate, is a 1.25Cr-0.5Mo class alloy boiler and pressure vessel plate under GB/T 713 / GB/T 713.2, typically N+T (temper ≥650°C), with about 310 MPa min yield and tensile 520-680 MPa for elevated-temperature / hydrogen service. Gangsteel (HENAN GANG IRON AND STEEL) produces and exports 14Cr1MoR plates cut to size with MTC for elevated-temperature and hydroprocessing equipment.
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 14Cr1MoR. Verify the contracted edition and purchase-order supplements before ordering.
| Element | C | Si | Mn | P | S | Cr |
|---|---|---|---|---|---|---|
| 14Cr1MoR, % | 0.17 max | 0.15-0.40 | 0.40-0.80 | 0.020 max | 0.010 max | 1.15-1.50 |
| Element | Mo | Cu | Ni | — | — | — |
|---|---|---|---|---|---|---|
| 14Cr1MoR, % | 0.45-0.65 | 0.30 max | 0.30 max | — | — | — |
Per GB/T 713.2 heat analysis. Higher Cr than 15CrMoR in the 1.25Cr-0.5Mo band.
| Thickness | Yield ReL, min | Tensile Rm | Elongation A, min | Impact KV2 |
|---|---|---|---|---|
| 6–100 mm | 310 MPa | 520-680 MPa | 19% | 20°C, ≥47 J |
| >100–150 mm | 300 MPa | 510-670 MPa | 19% | 20°C, ≥47 J |
Per GB/T 713.2. N+T; temper ≥650°C. Elevated-temperature tensile / HIC appendix by agreement.
Normalized + tempered (temper ≥650°C). Optional PWHT simulation, UT, hardness survey and 3.1/3.2 MTC.
Commonly 6–150 mm, width 1500-4000 mm, length 6000-18000 mm.
Elevated-temperature boilers, heat exchangers and hydroprocessing / Cr-Mo pressure parts.
| Standard | Comparable grade (approximate) |
|---|---|
| GB/T 713 | 14Cr1MoR |
| 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 1.25Cr-0.5Mo class alloy boiler and pressure vessel plate under GB/T 713 / GB/T 713.2, typically N+T (temper ≥650°C), with about 310 MPa min yield and tensile 520-680 MPa for elevated-temperature / hydrogen service. Gangsteel lists the official mill/certificate grade as 14Cr1MoR. See the full GB/T 713 14Cr1MoR page for chemistry and mechanical tables.
About 310 MPa min for 6–100 mm; ~300 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.
20°C standard (typically ≥47 J in common tabulations). Always state the required Charpy temperature and energy on the purchase order.
Normalized + tempered (temper ≥650°C). Optional PWHT simulation, UT, hardness survey and 3.1/3.2 MTC.
14Cr1MoR is in the Cr-Mo alloy family under GB/T 713.2. Related alloy grades: 15CrMoR / 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
