Industry-Verified Manufacturing Data (2026)

Lance Body/Tube

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Lance Body/Tube used in the Basic Metal Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Lance Body/Tube is characterized by the integration of Outer Shell and Oxygen Channel. In industrial production environments, manufacturers listed on CNFX commonly emphasize Low carbon steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The main structural component of an oxygen lance that houses and protects the oxygen delivery mechanism.

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Product Specifications

Technical details and manufacturing context for Lance Body/Tube

Definition
The lance body or tube is the primary structural element of an oxygen lance system used in steelmaking processes. It serves as the protective housing for the internal oxygen delivery channels and cooling systems, providing mechanical strength and thermal resistance during operation. This component connects to the lance head at one end and the supply system at the other, forming the critical conduit through which oxygen is delivered to molten metal in basic oxygen furnaces or electric arc furnaces.
Working Principle
The lance body/tube functions as a pressure vessel and thermal barrier that withstands extreme temperatures (up to 1600-1700°C) and mechanical stresses during steelmaking operations. It maintains structural integrity while allowing oxygen to flow through internal channels to the lance tip, where it reacts with molten metal. Cooling water typically circulates through annular spaces within the tube to prevent thermal damage.
Common Materials
Low carbon steel, Stainless steel, Copper alloys
Technical Parameters
  • Outer diameter and wall thickness of the lance tube, typically ranging from 150-400mm OD with 10-30mm wall thickness depending on furnace capacity (mm) Customizable
Components / BOM
  • Outer Shell
    Provides structural integrity and houses internal components
    Material: Low carbon steel
  • Oxygen Channel
    Conduit for high-pressure oxygen delivery to the lance tip
    Material: Stainless steel
  • Cooling Water Jacket
    Annular space for water circulation to dissipate heat
    Material: Copper alloy or steel
  • Connection Flange
    Interface for connecting to oxygen supply and cooling systems
    Material: Carbon steel
Engineering Reasoning
0.5-3.0 MPa (5-30 bar) at 20-1200°C
3.5 MPa (35 bar) internal pressure at 1200°C or 0.3 MPa (3 bar) at 1300°C
Design Rationale: Creep rupture due to Larson-Miller parameter exceeding 35,000 (P = T(20 + log t) × 10⁻³) where T is temperature in Kelvin and t is time in hours
Risk Mitigation (FMEA)
Trigger Oxygen flow velocity exceeding 300 m/s at lance tip
Mode: Erosion-induced wall thinning below 2 mm thickness
Strategy: Tungsten carbide coating (HVOF) with 0.5 mm thickness on inner surface
Trigger Thermal cycling between 200°C and 1200°C exceeding 1000 cycles
Mode: Thermal fatigue cracking initiating at weld joints
Strategy: Integral forged construction with controlled cooling rate of 50°C/min during manufacturing

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lance Body/Tube.

oxygen lance body tube structural component low carbon steel lance tube manufacturing lance tube cooling water jacket design stainless steel oxygen lance body copper alloy lance tube for metal production

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Oxygen Lance System
View system integration details
Injection Lance/System
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Maximum operating pressure: 15 bar (217.5 psi), burst pressure: 45 bar (652.5 psi)
flow rate: Oxygen flow capacity: 50-500 Nm³/h (1765-17650 SCFH) depending on diameter
temperature: Up to 1800°C (3272°F) for short-term exposure, continuous operation up to 1200°C (2192°F)
slurry concentration: Not applicable - designed for pure oxygen or oxygen-enriched gas delivery
Media Compatibility
✓ Basic oxygen furnace (BOF) steelmaking ✓ Electric arc furnace (EAF) steelmaking ✓ Copper smelting/converting processes
Unsuitable: Chlorine or fluorine-containing atmospheres (causes severe corrosion)
Sizing Data Required
  • Required oxygen flow rate (Nm³/h)
  • Lance insertion depth into molten metal bath (meters)
  • Available lance holder connection diameter (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive erosion
Cause: Prolonged exposure to high-velocity particulate-laden fluids, leading to material loss and thinning of the lance body/tube walls, especially at bends or constrictions.
Thermal fatigue cracking
Cause: Cyclic thermal stresses from rapid heating and cooling cycles, often due to intermittent operation or process fluctuations, causing cracks at weld joints or material transitions.
Maintenance Indicators
  • Visible thinning or localized wear spots on the lance body, often indicated by discoloration or reduced wall thickness.
  • Audible hissing or whistling sounds during operation, suggesting leaks or internal erosion compromising structural integrity.
Engineering Tips
  • Implement regular ultrasonic thickness testing at critical sections to monitor wall thinning and schedule proactive replacements before failure.
  • Optimize operating parameters to minimize thermal cycling, such as using gradual heating/cooling ramps and maintaining consistent process temperatures.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ASTM A269/A269M - Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing EN 10204:2004 - Metallic products - Types of inspection documents
Manufacturing Precision
  • Wall thickness: +/-0.1mm
  • Straightness: 0.5mm per meter length
Quality Inspection
  • Hydrostatic pressure test
  • Visual and dimensional inspection

Factories Producing Lance Body/Tube

Verified manufacturers with capability to produce this product in China

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✓ 98% Supplier Capability Match Found

T Technical Director from Singapore Jan 30, 2026
★★★★★
"Reliable performance in harsh Basic Metal Manufacturing environments. No issues with the Lance Body/Tube so far."
Technical Specifications Verified
P Project Engineer from Germany Jan 27, 2026
★★★★☆
"Testing the Lance Body/Tube now; the technical reliability results are within 1% of the laboratory datasheet. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Brazil Jan 24, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Lance Body/Tube from Poland (56m ago).

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Frequently Asked Questions

What materials are commonly used for lance body/tube construction?

Lance bodies/tubes are typically manufactured from low carbon steel for cost-effectiveness, stainless steel for corrosion resistance, or copper alloys for enhanced thermal conductivity in demanding metal manufacturing applications.

What are the main components of a lance body/tube assembly?

Key components include the connection flange for attachment, cooling water jacket for temperature control, outer shell for structural integrity, and oxygen channel for precise gas delivery in basic metal manufacturing processes.

How does the lance body/tube protect the oxygen delivery mechanism?

The lance body/tube serves as the primary structural housing that shields the internal oxygen delivery system from extreme temperatures, mechanical stress, and environmental factors during metal production operations like steelmaking.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Basic Metal Manufacturing sector.

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