07Ni5DR Steel Plate for Low-Temperature Pressure Vessels (GB/T 713.4-2023)

07Ni5DR is a 5% nickel-alloy steel plate grade for low-temperature pressure vessels under the Chinese national standard. The manufacturing specification is GB/T 713.4-2023 (previous version: GB/T 24510-2017), and the ultrasonic testing standard is NB/T 47013.3-2015.

This grade is specifically designed for use down to -120°C, with mandatory Charpy V-notch impact testing at -120°C.

07Ni5DR is positioned between 3.5% Ni steel (08Ni3DR, -100°C) and 7% Ni steel (06Ni7DR, -196°C), making it suitable for ethylene and other low-temperature chemical processes.

07Ni5DR designation explanation: 07 represents average carbon content (0.07%), Ni5 denotes average nickel content of 5%, DR stands for Low-temperature ("低") Pressure Vessel ("容").

Yield Strength

≥370 MPa

Tensile Strength

530–700 MPa

Impact (-120°C)

≥60 J

Standard

GB/T 713.4-2023

⚙️

Product Overview

07Ni5DR Steel Plate is a 5% nickel-alloy pressure vessel steel manufactured in accordance with GB/T 713.4. It is specifically designed for low-temperature service down to -120°C, where reliable impact toughness and structural safety are critical.

07Ni5DR fills the gap between 3.5% Ni steel (08Ni3DR) and 7% Ni / 9% Ni steels. It offers a cost-effective solution for ethylene and other low-temperature chemical processes requiring service temperatures around -120°C.

Yield 370MPa 5% Ni alloy Q+T delivery -120°C impact

🏭

Core Advantages

Guaranteed -120°C impact toughness (≥60 J)
Cost-effective solution between 3.5% Ni and 7% Ni
Quenched + tempered (Q+T) delivery
Good weldability with proper procedures
Residual magnetism testing optional

Professional Technical Support & Customization

Comprehensive Knowledge Base: Our sales team is proficient in nickel-alloy cryogenic steel standards. Whether it's the Chinese national standard 07Ni5DR, or related grades such as 08Ni3DR, 06Ni7DR, and 06Ni9DR, 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: If your design has special requirements (e.g., drop-weight test (NDT), thickness direction properties (Z-direction), simulated post-weld heat treatment, UT grade, residual magnetism control), we support customized production.

Q+T ≈35 days

Custom sizes available

Max thickness 80mm

📋 Applications

Ethylene storage tanks

Cryogenic heat exchangers

Liquefied gas vessels

Chemical process equipment

Spherical tanks

Pressure shells & heads

📦 Stock Resources

Q+T plates: 5–80mm (W:2000–2500, L:11000–12500)

Custom rolling: up to 80mm

Delivery: approx. 35 days Q+T

Click to check 07Ni5DR inventory

Spot stock size range and supply conditions

Quenched + Tempered (Q+T)

Thickness (mm)	Width (mm)	Length (mm)
5–80	2000/2200/2500	11000–12500

Supply Condition: Q+T (per GB/T 713.4-2023)

07Ni5DR Chemical Composition (max %)

C	Si	Mn	Ni	P	S	Cr	Cu	Mo	V	Nb	Alt
≤0.10	0.10–0.35	0.30–0.80	4.75–5.25	≤0.015	≤0.005	≤0.25	≤0.35	≤0.10	≤0.05	≤0.08	≥0.015

Note: 除06Ni7DR牌号外，Cr+Mo+Cu≤0.50%。当采用酸溶铝(Als)代替Alt时，Als含量应不小于0.015%。厚度大于50mm时，C含量上限可到0.12%。

07Ni5DR · alloying elements & roles

per GB/T 713.4

C Carbon ≤0.10%

Low carbon for excellent cryogenic toughness and weldability.

Si Silicon 0.10–0.35%

Deoxidizer; controlled for toughness.

Mn Manganese 0.30–0.80%

Contributes to strength and toughness; kept moderate for cryogenic ductility.

Ni Nickel 4.75–5.25%

Key alloying element; provides excellent -120°C toughness.

P Phosphorus ≤0.015%

Tight limit; harmful to cryogenic toughness.

S Sulfur ≤0.005%

Tight limit; harmful to toughness and weldability.

Cr Chromium ≤0.25%

Residual element; contributes to hardenability.

Cu Copper ≤0.35%

Residual element; limited to avoid adverse effects.

Mo Molybdenum ≤0.10%

Residual element; improves hardenability.

V Vanadium ≤0.05%

Residual element; tightly controlled.

Nb Niobium ≤0.08%

Residual element; tightly controlled.

Alt Aluminum (total) ≥0.015%

Deoxidizer, refines grain structure. Als ≥0.015% if used instead.

07Ni5DR typical ranges (wt%): C ≤0.10, Si 0.10–0.35, Mn 0.30–0.80, Ni 4.75–5.25, P ≤0.015, S ≤0.005, Cr ≤0.25, Cu ≤0.35, Mo ≤0.10, V ≤0.05, Nb ≤0.08, Alt ≥0.015. Cr+Mo+Cu ≤0.50%.

07Ni5DR Mechanical Properties & Impact Test

Thickness (mm)	YS (MPa)	TS (MPa)	Elong (%)	Impact -120°C (J)
5–30	≥370	530–700	≥20	≥60
>30–50	≥360	530–700	≥20	≥60
>50–80	≥350	530–700	≥20	≥60

Note: 07Ni5DR is delivered in quenched + tempered (Q+T) condition. Impact test at -120°C is mandatory per GB/T 713.4-2023. Bending test: D=3a (transverse).

Cryogenic Impact & Special Inspection Requirements

Test Temperature

-120 °C

Average Impact Energy

≥60 J

Specimen

Charpy V-Notch

Residual Magnetism

Optional

📋 For 07Ni5DR, residual magnetism testing is by agreement between supplier and buyer. Drop-weight test (NDT) and Z-direction properties are available upon agreement. UT per NB/T 47013.3, grade not lower than I.

07Ni5DR vs Related Nickel-Alloy Cryogenic Grades

Item	08Ni3DR	07Ni5DR	06Ni7DR	06Ni9DR
Standard	GB/T 713.4	GB/T 713.4	GB/T 713.4	GB/T 713.4
Ni content	3.25–3.75%	4.75–5.25%	6.50–7.50%	8.50–10.00%
Min use temp	-100°C	-120°C	-196°C	-196°C
Min yield (MPa)	≥320	≥370	≥560	≥560
Impact energy	≥60 J (-100°C)	≥60 J (-120°C)	≥80 J (-196°C)	≥80 J (-196°C)
Delivery	N / N+T	Q+T	Q+T / Q+Q+T	Q+T / Q+Q+T

International equivalents (per GB/T 713.4-2023 Appendix A): 07Ni5DR corresponds to EN 10028-4 X12Ni5, ISO 9328-4 X12Ni5, DNV NV5Ni/a, and JIS G 3127 SL5N590. 08Ni3DR corresponds to EN 10028-4 12Ni14, ASTM A203 3.5% Ni; 06Ni7DR corresponds to EN 10028-4 X6Ni7; 06Ni9DR corresponds to EN 10028-4 X7Ni9/X8Ni9, ASTM A553 9% Ni.

Scenario-Based Recommendation · GB Grade Comparison

16MnDR

Cryogenic tanks, cold regions, LPG

Yield ≥315 MPa · Tensile 490-620 MPa
Charpy -40°C ≥47J

vs 07Ni5DR: lower strength & no -120°C capability

16MnDR details

09MnNiDR

Ethylene, chemical, extreme‑cold equipment

Yield ≥300 MPa · Tensile 440-570 MPa
Charpy -70°C (Ni alloyed)

vs 07Ni5DR: 09MnNiDR stops at -70°C, 07Ni5DR reaches -120°C

09MnNiDR details

08Ni3DR

3.5% Ni steel for -100°C service

Yield ≥320 MPa · Tensile 490-620 MPa
Charpy -100°C ≥60J

vs 07Ni5DR: lower Ni content and higher temp limit

08Ni3DR details

07Ni5DR

Ethylene, chemical, -120°C service

Yield ≥370 MPa · Tensile 530-700 MPa
Charpy -120°C ≥60J

Balanced Ni content & temperature capability

Current Grade

06Ni7DR

LNG, liquefied gas, -196°C

Yield ≥560 MPa · Tensile 680-820 MPa
Charpy -196°C ≥80J

vs 07Ni5DR: higher Ni content, lower temp capability

06Ni7DR details

Quick selection path: 16MnDR (-40°C) → 09MnNiDR (-70°C) → 08Ni3DR (-100°C) → 07Ni5DR (-120°C) → 06Ni7DR / 06Ni9DR (-196°C)

Quality Control & Inspection

Mill Test Certificate 3.1 Chemical analysis Mechanical testing Charpy V-notch -120°C UT per NB/T 47013.3 Third-party inspection

📐 Customizable Specification Range for 07Ni5DR

Thickness

5–80 mm

(per standard; custom rolling available)

Width

1500–5200 mm

(adjustable per order)

Length

≤ 18000 mm

(max. single length)

⚙️

Delivery Condition

Q+T

Q+T quenched + tempered. Per GB/T 713.4-2023, 07Ni5DR is delivered in Q+T condition.

🔧

Additional Requirements

Drop-weight test (NDT) per GB/T 6803
Thickness direction (Z-direction) properties
Simulated post‑weld heat treatment (PWHT)
UT per NB/T 47013.3, grade I or higher
Residual magnetism testing (by agreement)

📋 Other customized technical conditions are also negotiable.

✅ The above ranges represent our standard customizing capability — dimensions, delivery conditions, and supplementary tests can be further adjusted to meet your project specifications.

Frequently Asked Questions

What is 07Ni5DR steel plate used for?

07Ni5DR steel plate is mainly used for ethylene storage tanks, cryogenic heat exchangers, liquefied gas vessels, chemical process equipment, spherical tanks, and other equipment operating down to -120°C, manufactured according to GB/T 713.4.

What is the difference between 07Ni5DR and 08Ni3DR?

07Ni5DR contains 4.75–5.25% Ni and is qualified for -120°C service, while 08Ni3DR contains 3.25–3.75% Ni and is qualified for -100°C service. 07Ni5DR also has higher yield strength (≥370 MPa vs ≥320 MPa).

Is 07Ni5DR equivalent to X12Ni5?

Yes. Per GB/T 713.4-2023 Appendix A, 07Ni5DR is approximately equivalent to EN 10028-4 X12Ni5, ISO 9328-4 X12Ni5, and JIS G 3127 SL5N590.

Does 07Ni5DR require shot blasting?

No. Per GB/T 713.4-2023, shot blasting is only mandatory for 06Ni7DR and 06Ni9DR. For 07Ni5DR, surface treatment is by agreement.

Can you provide 07Ni5DR steel plates with custom sizes?

Yes. Custom rolling for thickness 5–80mm, width up to 5200mm, length up to 18000mm. Delivery: approximately 35 days Q+T.

Request a Quote

Emails go directly to customize@cehesteel.com — reply within 12h.