12Cr1MoVR Steel Plate for Pressure Vessels (GB/T 713)

12Cr1MoVR is a chromium-molybdenum pressure vessel steel plate grade under the Chinese national standard. The manufacturing specification is GB/T 713.2-2023 (previous version: GB/T 713-2014), and the ultrasonic testing standard is NB/T 47013.3-2015.

This grade is a chromium-molybdenum-vanadium alloy steel offering excellent high-temperature strength, creep resistance, and corrosion resistance for elevated temperature service. It is a unique grade under GB/T 713 with no direct equivalent in EN or ASME standards.

12Cr1MoVR steel plates are impact tested at 20 C as standard, with minimum absorbed energy of 47 J (average).

12Cr1MoVR designation explanation: 12 stands for average carbon content (0.12%), Cr denotes Chromium, Mo denotes Molybdenum, V denotes Vanadium, R denotes Pressure Vessel Steel.

Yield Strength
>=245 MPa
Tensile Strength
440-590 MPa
Impact (20 C)
>=47 J
Standard
GB/T 713.2-2023

Product Overview

12Cr1MoVR Steel Plate is a chromium-molybdenum-vanadium pressure vessel steel manufactured in accordance with GB/T 713.2-2023. It contains chromium, molybdenum, and vanadium as alloying elements, providing excellent high-temperature strength, creep resistance, and oxidation resistance for elevated temperature service.

Compared with 15CrMoR, 12Cr1MoVR offers the addition of vanadium (0.15-0.30%) which refines grain structure and significantly improves high-temperature strength and creep resistance, making it suitable for critical high-temperature applications.

Yield 245MPa Cr-Mo-V Alloyed High-Temp Resistant 20 C Impact

Core Advantages

  • Excellent high-temperature strength and creep resistance
  • Vanadium addition for grain refinement and enhanced strength
  • Customizable: HIC/SSC, high-temp properties
  • Normalized + tempered (N+T) delivery condition

Professional Technical Support and Customization

Comprehensive Knowledge Base: Our sales team is proficient in mainstream domestic and international pressure vessel standards. Whether it's the Chinese national standard 12Cr1MoVR or other international standards, we can provide accurate technical communication.

Zero Communication Errors: With solid product knowledge, we can avoid all basic errors during the order technical condition confirmation stage, ensuring the accuracy of your order.

Flexible Customization Capabilities: The 12Cr1MoVR standard does not have mandatory requirements for hardness and high-temperature performance. If your design has special requirements (e.g., specific hardness, high-temperature mechanical properties, simulated post-weld heat treatment, HIC/SSC testing), we support customized production.

Hot-rolled ~15 days
Normalized ~30 days
Max thickness 100mm


 Applications

High-temperature reactors
Heat exchangers
Boiler drums
Superheaters and reheaters
Petrochemical pressure vessels
High-temperature piping components


 Stock Resources

Normalized plates: 6-100mm (W:2000-2500, L:11000-12500)

Hot-rolled plates: 6-36mm (W:1800-2500, L:11000-12500)

Hot-rolled coils: 5-16mm (W:1500-2000)

Spot stock size range and supply conditions

Hot Rolled (AR)
Thickness (mm) Width (mm) Length (mm)
6-36 1800/2000/2200/2500 11000-12500
Normalized (N/N+T)
Thickness (mm) Width (mm) Length (mm)
6-100 2000/2200/2500 11000-12500
Hot-Rolled Coils
Thickness (mm) Width (mm)
5-16 1500/1800/2000

Supply Condition: CR, AR, N, N+T

12Cr1MoVR Chemical Composition (max %)

C Si Mn Cu Ni Cr Mo V Nb Ti P S
0.08-0.15 0.15-0.40 0.40-0.70 <=0.30 <=0.30 0.90-1.20 0.25-0.35 0.15-0.30 - - <=0.025 <=0.010

12Cr1MoVR - Alloying Elements and Roles

per GB/T 713.2-2023
C Carbon 0.08-0.15%

Influences strength and hardness.

Si Silicon 0.15-0.40%

Deoxidizer, increases strength and oxidation resistance.

Mn Manganese 0.40-0.70%

Enhances strength and toughness.

P Phosphorus <=0.025%

Harmful element, reduces toughness.

S Sulfur <=0.010%

Harmful element, causes hot shortness.

Cr Chromium 0.90-1.20%

Improves corrosion resistance, oxidation resistance, and high-temperature strength.

Mo Molybdenum 0.25-0.35%

Improves high-temperature strength and creep resistance.

V Vanadium 0.15-0.30%

Refines grain structure and significantly improves high-temperature strength.

Cu+Ni+Cr+Mo Residual Total <=0.70%

As residual elements, Cu and Ni each <=0.30%, Cr and Mo as alloying elements.

12Cr1MoVR Mechanical Properties and Impact Test

Thickness (mm) YS (MPa) TS (MPa) Elong (%) Impact 20 C (J)
6-60 >=245 440-590 19 >=47
>60-100 >=235 430-580 19 >=47

12Cr1MoVR High-Temperature Mechanical Properties (Rp0.2 or RcL, MPa)

Thickness (mm) 200 C 250 C 300 C 350 C 400 C 450 C
>20-100 220 210 200 190 176 167

Note: High-temperature tensile properties available upon request. Values based on GB/T 713.2-2023 Table 3.

12Cr1MoVR vs 15CrMoR

Item 12Cr1MoVR 15CrMoR
Standard GB/T 713.2 GB/T 713.2
Cr Content 0.90-1.20% 0.80-1.20%
Mo Content 0.25-0.35% 0.45-0.65%
V Content 0.15-0.30% -
Yield Strength >=245 MPa >=295 MPa
Impact Temp 20 C 0 C

Scenario-Based Recommendation - GB Grade Comparison

15CrMoR

High-temp reactors, hydroprocessing
Yield >=295 MPa - Cr 0.80-1.20%
Charpy 0 C
Standard Cr-Mo grade
15CrMoR details

14Cr1MoR

High-temp, severe service
Yield >=310 MPa - Cr 1.00-1.50%
Charpy 0 C
Higher Cr content
14Cr1MoR details

12Cr2Mo1R

Hydroprocessing, hydrogen service
Yield >=310 MPa - Cr 2.00-2.50%
Charpy 0 C
Highest Cr content for H2 service
12Cr2Mo1R details

12Cr1MoVR

High-temp boilers, superheaters
Yield >=245 MPa - Cr 0.90-1.20%
Charpy 20 C (47 J)
Cr-Mo-V alloyed for high-temp strength
[Current Grade]

16MnDR

Cryogenic tanks, cold regions
Yield >=315 MPa - Tensile 490-620 MPa
Charpy -40 C
Low-temperature application
16MnDR details
Quick selection path: 15CrMoR -> 14Cr1MoR -> 12Cr2Mo1R -> 12Cr1MoVR (Cr-Mo-V, high-temp strength)

Quality Control and Inspection

Mill Test Certificate 3.1 Chemical analysis Mechanical testing Charpy V-notch 20 C High-temp tensile UT optional

Customizable Specification Range for 12Cr1MoVR

Thickness
6-100 mm
(custom rolling)
Width
1500-5200 mm
(adjustable per order)
Length
<= 18000 mm
(max. single length)

Delivery Condition

AR CR TMCP N+T N

AR as rolled - CR controlled rolled - TMCP thermo-mechanical - N+T normalized + tempered - N normalized

Additional Requirements

  • Simulated post-weld heat treatment (PWHT)
  • Brinell hardness requirements
  • HIC / SSC testing
  • High-temperature tensile properties

Other customized technical conditions are also negotiable.

The above ranges represent our standard customizing capability.

Frequently Asked Questions

What is 12Cr1MoVR steel plate used for?

12Cr1MoVR steel plate is mainly used for high-temperature reactors, heat exchangers, boiler drums, superheaters, reheaters, and petrochemical pressure vessels requiring excellent high-temperature strength and creep resistance.

What is the impact test temperature for 12Cr1MoVR?

12Cr1MoVR steel plates are impact tested at 20 C as standard, with minimum average absorbed energy of 47 J (Charpy V-notch).

What is the difference between 15CrMoR and 12Cr1MoVR?

12Cr1MoVR contains vanadium (0.15-0.30%) which refines grain structure and significantly improves high-temperature strength and creep resistance, while 15CrMoR has higher molybdenum content (0.45-0.65%). 12Cr1MoVR is specifically designed for high-temperature applications.

What is the delivery condition for 12Cr1MoVR?

12Cr1MoVR is typically delivered in normalized + tempered (N+T) condition with a tempering temperature not lower than 680 C.

Can you provide 12Cr1MoVR steel plates with custom sizes?

Yes. Custom rolling up to 100mm thick, 5200mm wide, 18000mm long. Delivery: 15-20 days hot-rolled, 30-35 days normalized.

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