High Quality Gb Cr5mo1v Tool Steel Procurement Guide - China

I.

Technical Standards and Certification 1 - National Standard Requirements - Ensure compliance with the composition and performance specifications for GB Cr5Mo1V tool steel as defined in GB/T 1299-2014 "Tool and Die Steel".

2 - Material Certification - Require suppliers to provide original manufacturer's warranty certificates (MTC/COC), specifying the heat number, chemical composition, and heat treatment data.

II.

Core Quality Indicators 1 - Purity and Uniformity - Low impurity control: Lower sulfur and phosphorus content is better (recommended P≤0.015%, S≤0.005%).

- Oxygen content: ≤15ppm (vacuum degassing or electroslag remelting can improve cleanliness).

- Carbide distribution: Requires uniform and fine distribution, without banded segregation (verifiable through metallographic testing).

2 - Hardness and Heat Treatment Performance - Annealed hardness: ≤229 HBW (for easy machining).

- Hardenability: Uniform hardness across the entire cross-section under air quenching conditions (recommended ≥58 HRC).

- Tempering stability: Maintains high hardness (≥55 HRC) after tempering at 500-550℃.

3 - Dimensional Accuracy and Surface Quality - Straightness and tolerances of flat/round bars must conform to GB/T 908-2019 precision material standard.

- Surface free of cracks and rust; peeling or polishing can reduce machining allowances.

Through the above steps, high-quality GB Cr5Mo1V tool steel meeting the requirements can be systematically screened, balancing performance, cost, and supply chain stability.

It is recommended to communicate directly with the steel mill's technical department to adjust parameter requirements according to specific application scenarios.

Songshun Company Website:

https: //songshunsteel.

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 0086 0769 85475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , GuangDong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
  We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.
  
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