Continuous Supply Of High-Quality DP590 Steel Discs For Brazilian LPG Cylinder Manufacture

Jun 18, 2026 Leave a message

Shanghai LUZHEN is proud to announce another successful series of consecutive shipments of premium-grade steel discs to our long-term partner in Brazil. This stable, high-volume supply partnership underscores our manufacturing consistency and our capability to meet the stringent quality standards required by the global pressure vessel industry.

 

loading the Round Flat Steel Plate recent container loading of Round Flat Steel Plate Round Flat Steel Plate with Cylinder BaseHandle

 

The shipped steel discs(also known as Round Flat Steel Plate or Circular Steel Plate) are meticulously manufactured from DP590 (Dual-Phase) steel, featuring a standardized diameter of 580mm and a precise thickness of approximately 1.7mm. These specifications represent the ideal dimensions and material grade tailored specifically for high-strength liquefied petroleum gas (LPG) cylinder manufacturing.

 

the diameter of Round Flat Steel Plate1  the thickness of Round Flat Steel Plate1

 

Why DP590 is the Ultimate Choice for Cylinder Manufacturing

DP590 is an advanced high-strength steel (AHSS) characterized by a ferritic matrix containing martensitic islands. This unique microstructure provides exceptional mechanical properties that directly translate into premium cylinder quality:

1.Superior Tensile Strength:

With a minimum tensile strength of 590 MPa, DP590 offers outstanding structural integrity. This allows manufacturers to produce cylinders with thinner walls-reducing overall weight and transportation costs-without sacrificing the safety margin or burst pressure ratings required by international standards (such as ISO 4706 or DOT).

2.High Initial Work-Hardening Rate:

During the deep drawing process, DP590 exhibits an impressive strain-hardening capability. This ensures excellent formability during the deep-draw stamping of cylinder halves, minimizing the risk of localized thinning or cracking.

3.Outstanding Fatigue Resistance:

LPG cylinders undergo continuous pressure cycles during refilling and handling. The high fatigue strength of DP590 ensures a prolonged lifecycle and maximum operational safety under harsh environmental conditions.

 

Driven by Reliability and Full Customization Capabilities

At Shanghai LUZHEN, we understand that industrial supply chain reliability is just as vital as material science. Our capability to ensure batch-after-batch consistency for our Brazilian clientele proves our robust supply chain logistics and strict quality control protocols. Every shipment undergoes rigorous dimensional inspection and mechanical testing to guarantee zero-defect delivery.

Beyond DP590, we offer extensive customization support to meet diverse global engineering demands(such as Hot Rolled Steel Sheet In Coil, Cold Rolled Strip, etc.). We cooperate closely with clients to supply a wide array of steel grades, custom thicknesses, and precise cutting diameters tailored to your specific drawing dies.

We warmly welcome both new and long-term global partners to contact us for technical consultations and to discuss how our steel solutions can optimize your manufacturing efficiency!