07Cr2AlMoR Steel Plate for Pressure Vessels (GB/T 713)

07Cr2AlMoR is a chromium-aluminum-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-aluminum-molybdenum alloy steel offering excellent high-temperature strength, creep resistance, and corrosion resistance. It features the addition of aluminum (0.30-0.50%) as a distinctive alloying element. This is a unique grade under GB/T 713 with no direct equivalent in EN or ASME standards.

07Cr2AlMoR steel plates are impact tested at 20 ℃ as standard, with minimum absorbed energy of 47 J (average).

07Cr2AlMoR designation explanation: 07 stands for average carbon content (0.07%), Cr denotes Chromium, Al denotes Aluminum, Mo denotes Molybdenum, R denotes Pressure Vessel Steel.

Yield Strength
>=250 MPa
Tensile Strength
420-580 MPa
Impact (20 C)
>=47 J
Standard
GB/T 713.2-2023

Product Overview

07Cr2AlMoR Steel Plate is a chromium-aluminum-molybdenum pressure vessel steel manufactured in accordance with GB/T 713.2-2023. It contains chromium (2.00-2.40%), aluminum (0.30-0.50%), and molybdenum (0.30-0.50%) as alloying elements, providing excellent high-temperature strength, creep resistance, and corrosion resistance.

Compared with other Cr-Mo grades, 07Cr2AlMoR features the addition of aluminum which enhances oxidation resistance and high-temperature stability, making it suitable for specialized high-temperature applications.

Yield 250MPa Cr-Al-Mo Alloyed High-Temp Resistant 20 C Impact

Core Advantages

  • Excellent high-temperature strength and creep resistance
  • Aluminum addition for enhanced oxidation resistance
  • 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 07Cr2AlMoR 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 07Cr2AlMoR 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 60mm


 Applications

High-temperature reactors
Heat exchangers
Boiler drums
Petrochemical pressure vessels
High-temperature piping components
Crude oil distillation equipment


 Stock Resources

Normalized plates: 6-60mm (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)
6-60 2000/2200/2500 11000-12500
Hot-Rolled Coils
Thickness (mm) Width (mm)
5-16 1500/1800/2000

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

07Cr2AlMoR Chemical Composition (max %)

C Si Mn Cu Ni Cr Mo Al P S
<=0.09 0.20-0.50 0.40-0.90 <=0.30 <=0.30 2.00-2.40 0.30-0.50 0.30-0.50 <=0.020 <=0.010

07Cr2AlMoR - Alloying Elements and Roles

per GB/T 713.2-2023
C Carbon <=0.09%

Influences strength and hardness.

Si Silicon 0.20-0.50%

Deoxidizer, increases strength and oxidation resistance.

Mn Manganese 0.40-0.90%

Enhances strength and toughness.

P Phosphorus <=0.020%

Harmful element, reduces toughness.

S Sulfur <=0.010%

Harmful element, causes hot shortness.

Cr Chromium 2.00-2.40%

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

Mo Molybdenum 0.30-0.50%

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

Al Aluminum 0.30-0.50%

Deoxidizer, refines grain structure, improves oxidation resistance and high-temperature stability.

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

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

07Cr2AlMoR typical ranges (wt%): C <=0.09, Si 0.20-0.50, Mn 0.40-0.90, P<=0.020, S<=0.010, Cr 2.00-2.40, Mo 0.30-0.50, Al 0.30-0.50.

07Cr2AlMoR Mechanical Properties and Impact Test

Thickness (mm) YS (MPa) TS (MPa) Elong (%) Impact 20 C (J)
6-36 >=260 420-580 21 >=47
>36-60 >=250 410-570 21 >=47

07Cr2AlMoR High-Temperature Mechanical Properties (Rp0.2 or RcL, MPa)

Thickness (mm) 100℃ 150℃ 200℃ 250℃ 300℃ 350℃ 400℃ 450℃ 500℃
>20-60 215 205 195 185 175 - - - -

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

07Cr2AlMoR vs 12Cr2Mo1R

Item 07Cr2AlMoR 12Cr2Mo1R
Standard GB/T 713.2 GB/T 713.2
Al Content 0.30-0.50% -
Cr Content 2.00-2.40% 2.00-2.50%
Mo Content 0.30-0.50% 0.90-1.10%
Yield Strength >=250 MPa >=310 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
High Cr content for H2 service
12Cr2Mo1R details

07Cr2AlMoR

Specialized high-temp, oxidation resistance
Yield >=250 MPa - Cr 2.00-2.40%
Charpy 20 C (47 J)
Cr-Al-Mo alloyed, unique grade
[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 -> 07Cr2AlMoR (Cr-Al-Mo, unique grade)

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 07Cr2AlMoR

Thickness
6-60 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 07Cr2AlMoR steel plate used for?

07Cr2AlMoR steel plate is mainly used for high-temperature reactors, heat exchangers, boiler drums, and petrochemical pressure vessels requiring excellent oxidation resistance and high-temperature stability.

What is the impact test temperature for 07Cr2AlMoR?

07Cr2AlMoR steel plates are impact tested at 20 C as standard, with minimum average absorbed energy of 47 J (Charpy V-notch).

What makes 07Cr2AlMoR unique compared to other Cr-Mo grades?

07Cr2AlMoR contains aluminum (0.30-0.50%) as a distinctive alloying element, which enhances oxidation resistance, refines grain structure, and improves high-temperature stability compared to conventional Cr-Mo grades.

What is the delivery condition for 07Cr2AlMoR?

07Cr2AlMoR is typically delivered in normalized + tempered (N+T) condition with a tempering temperature not lower than 680 C.

Can you provide 07Cr2AlMoR steel plates with custom sizes?

Yes. Custom rolling up to 60mm thick, 5200mm wide, 18000mm long. Delivery: 15-20 days hot-rolled, 30-35 days normalized.

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