09MnNiDR Steel Plate for Pressure Vessels (GB/T 713)

09MnNiDR is a low-temperature pressure vessel steel plate grade under the Chinese national standard. The manufacturing specification is GB/T 713.4-2023 (previous version: GB/T 713-2014), and the ultrasonic testing standard is NB/T 47013.3-2015.

This grade is a nickel-alloyed low-temperature steel offering excellent low-temperature toughness and impact resistance. It is specifically designed for cryogenic and low-temperature service down to -70 C. This grade has no direct equivalent in EN or ASME standards.

09MnNiDR steel plates are impact tested at -70 C as standard, with minimum absorbed energy of 47 J (average).

09MnNiDR designation explanation: 09 stands for average carbon content (0.09%), Mn denotes Manganese, Ni denotes Nickel, DR denotes Low-Temperature Pressure Vessel Steel (Di Rong).

Yield Strength
>=280 MPa
Tensile Strength
430-570 MPa
Impact (-70 C)
>=47 J
Standard
GB/T 713.4-2023

Product Overview

09MnNiDR Steel Plate is a low-temperature nickel-alloyed pressure vessel steel manufactured in accordance with GB/T 713.4-2023. It contains nickel (0.30-0.80%) as a key alloying element, providing excellent low-temperature toughness and impact resistance for cryogenic service down to -70 C.

Compared with 16MnDR, 09MnNiDR offers superior low-temperature performance with guaranteed impact toughness at -70 C, making it suitable for the most demanding cryogenic applications.

Yield 280MPa Ni Alloyed -70 C Impact Cryogenic

Core Advantages

  • Excellent low-temperature toughness down to -70 C
  • Nickel alloying for enhanced impact resistance
  • Customizable: HIC/SSC, high-temp properties
  • Normalized (N) 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 09MnNiDR 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 09MnNiDR 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 120mm


 Applications

Cryogenic storage tanks
LNG storage tanks
Ethylene tanks
Low-temperature pressure vessels
Cold region storage tanks
Petrochemical cryogenic equipment


 Stock Resources

Normalized plates: 5-120mm (W:2000-2500, L:11000-12500)

Hot-rolled plates: 5-36mm (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)
5-36 1800/2000/2200/2500 11000-12500
Normalized (N)
Thickness (mm) Width (mm) Length (mm)
5-120 2000/2200/2500 11000-12500
Hot-Rolled Coils
Thickness (mm) Width (mm)
5-16 1500/1800/2000

Supply Condition: CR, AR, N

09MnNiDR Chemical Composition (max %)

C Si Mn Cu Ni Cr Mo Nb V Ti Alt P S
<=0.12 0.15-0.50 1.20-1.60 <=0.20 0.30-0.80 <=0.20 <=0.08 <=0.050 <=0.050 <=0.030 >=0.015 <=0.020 <=0.010

09MnNiDR - Alloying Elements and Roles

per GB/T 713.4-2023
C Carbon <=0.12%

Influences strength and hardness.

Si Silicon 0.15-0.50%

Deoxidizer, increases strength.

Mn Manganese 1.20-1.60%

Enhances strength and toughness.

P Phosphorus <=0.020%

Harmful element, reduces toughness.

S Sulfur <=0.010%

Harmful element, causes hot shortness.

Ni Nickel 0.30-0.80%

Enhances low-temperature toughness and impact resistance.

Al Aluminum >=0.015%

Deoxidizer, refines grain structure.

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

As residual elements, Cu, Ni, Cr each <=0.30%, Mo as residual <=0.08%.

09MnNiDR typical ranges (wt%): C <=0.12, Si 0.15-0.50, Mn 1.20-1.60, P<=0.020, S<=0.010, Ni 0.30-0.80, Al>=0.015.

09MnNiDR Mechanical Properties and Impact Test

Thickness (mm) YS (MPa) TS (MPa) Elong (%) Impact -70 C (J)
5-16 >=300 430-570 21 >=47
>16-36 >=280 430-570 21 >=47
>36-60 >=260 430-570 21 >=47
>60-120 >=250 430-570 21 >=47

09MnNiDR vs 16MnDR

Item 09MnNiDR 16MnDR
Standard GB/T 713.4 GB/T 713.3
Ni Content 0.30-0.80% -
Impact Temperature -70 C -40 C
Impact Energy >=47 J >=34 J
Yield Strength >=280 MPa >=315 MPa

Scenario-Based Recommendation - GB Grade Comparison

16MnDR

Cryogenic tanks, cold regions
Yield >=315 MPa - Tensile 490-620 MPa
Charpy -40 C
Standard low-temperature grade
16MnDR details

09MnNiDR

Cryogenic tanks, LNG, ethylene
Yield >=280 MPa - Tensile 430-570 MPa
Charpy -70 C (47 J)
Ni alloyed for -70 C service
[Current Grade]

Q345R

General pressure vessels, boilers
Yield >=345 MPa - Tensile 510-640 MPa
Charpy 0 C
Standard grade, cost-effective
Q345R details

Q420R

High-pressure large vessels
Yield >=420 MPa - Tensile 590-720 MPa
Charpy -20 C
High strength, good weldability
Q420R details
Quick selection path: Q345R (standard) -> 16MnDR (-40 C) -> 09MnNiDR (-70 C, Ni alloyed)

Quality Control and Inspection

Mill Test Certificate 3.1 Chemical analysis Mechanical testing Charpy V-notch -70 C UT optional Third-party inspection

Customizable Specification Range for 09MnNiDR

Thickness
5-120 mm
(custom rolling)
Width
1500-5200 mm
(adjustable per order)
Length
<= 18000 mm
(max. single length)

Delivery Condition

AR CR N

AR as rolled - CR controlled rolled - 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 09MnNiDR steel plate used for?

09MnNiDR steel plate is mainly used for cryogenic storage tanks, LNG storage tanks, ethylene tanks, low-temperature pressure vessels, and petrochemical cryogenic equipment requiring excellent low-temperature toughness down to -70 C.

What is the impact test temperature for 09MnNiDR?

09MnNiDR steel plates are impact tested at -70 C as standard, with minimum average absorbed energy of 47 J (Charpy V-notch).

What is the difference between 16MnDR and 09MnNiDR?

09MnNiDR contains nickel (0.30-0.80%) as a key alloying element and is impact tested at -70 C, while 16MnDR has no nickel requirement and is impact tested at -40 C. 09MnNiDR is specifically designed for more demanding cryogenic applications.

What is the delivery condition for 09MnNiDR?

09MnNiDR is typically delivered in normalized (N) condition. Hot-rolled (AR) and controlled rolled (CR) are also available upon request.

Can you provide 09MnNiDR steel plates with custom sizes?

Yes. Custom rolling up to 120mm thick, 5200mm wide, 18000mm long. Delivery: 15-20 days hot-rolled, 30-35 days normalized.

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