HP235 HP295 HP325 HP345 Hot Rolled Steel Coil for Gas Cylinder

Product Overview

HP235, HP295, HP325, and HP345 hot rolled steel coils are high-strength pressure vessel steels specifically designed for welded gas cylinder manufacturing, complying with Chinese GB/T 6653 standard and relevant international specifications. This series features premium carbon and low-alloy steel compositions with strict hot rolling process control to ensure safety and reliability under high-pressure environments.

Product Specifications

Thickness Range

• Standard Thickness: 2.0mm - 12.0mm
• Common Sizes: 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm
• Thickness Tolerance: Per GB/T 709, Class B precision or customized

Width Specifications

• Standard Width: 1000mm - 2000mm
• Common Widths: 1250mm, 1500mm, 1800mm
• Width Tolerance: 0mm - +20mm

Coil Weight & Dimensions

• Single Coil Weight: 8-25 MT (custom slitting available)
• Inner Diameter: 508mm / 610mm
• Outer Diameter: 1000mm - 2100mm

Surface Quality

• Surface Condition: Hot rolled, descaled
• Surface Quality Grade: FB (Improved) or FC (Premium)
• Permissible Defect Depth: Not exceeding half of thickness tolerance

Grade Specifications

Ordering Guide

Quotation Requirements

• Steel Grade (HP235/HP295/HP325/HP345)
• Dimensions (Thickness × Width)
• Quantity (Metric Tons)
• End Use (Type of cylinder to be manufactured)
• Special Requirements (Certification standards, additional tests, etc.)

Minimum Order Quantity

• Standard Specifications: 1 MT
• Special Specifications: 5 MT (or negotiable)
• Stock Inventory: Small trial orders accepted

Delivery Schedule

• Stock Items: 3-5 working days
• Regular Orders: 15-25 working days
• Custom Orders: 30-45 working days

Payment Terms

• Domestic: 30% advance, balance before shipment; or L/C
• Export: 30% T/T advance, 70% L/C at sight; or 100% L/C at sight