15MnVN Steel

Basic Information

Standard: Typically follows Chinese national standards (e.g., GB/T 1591 for low-alloy high-strength structural steel).

Classification: Low-alloy high-strength steel with microalloying elements (V, N) for enhanced mechanical properties.

Key Features: Combines high strength, good plasticity, toughness, and weldability, suitable for heavy-duty structural applications.

Chemical Composition (Typical Values, %)

Element	Content Range	Role in Steel
C	0.12–0.18	Maintains strength while limiting carbon to improve weldability.
Si	0.20–0.55	Deoxidizer; improves strength and hardness (excess may reduce toughness).
Mn	1.20–1.60	Strengthens the matrix, improves hardenability, and combines with carbon for enhanced strength.
V	0.10–0.20	Microalloying element; forms fine carbides/nitrides to refine grains and increase strength via precipitation hardening.
N	0.010–0.025	Enhances precipitation hardening with vanadium, further refining grains and improving toughness.
P/S	≤0.035	Strictly controlled to reduce cold/hot brittleness (impurity elements).

 

 

 

 

 

Processing and Performance

Heat Treatment:

Normalizing: Typically normalized (heated to 880–940°C, air-cooled) to refine grains, improve uniformity, and optimize toughness.

No Quenching/Tempering: Usually used in the normalized or hot-rolled state; quenching is rarely applied due to its low carbon content.

Weldability:

Good Weldability: Low carbon equivalent (CE ≤ 0.44%) allows welding without preheating for most applications.

Recommendations: Use low-hydrogen welding consumables (e.g., E5015 焊条 or ER50-6 焊丝) to prevent hydrogen-induced cracking, especially for thick sections or cold environments.

 

 

15MnVN steel is valued for its balanced combination of strength, toughness, and processability, making it a preferred choice for demanding structural and mechanical applications in China and globally.

 

 

 

 

 

 

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our 15MnVN Steel Price, and develop new technical specifications and processes.
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We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
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All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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