Refined Lead (Pb)

Description

1. Product Overview

Refined Lead (Pb) is a high-purity non-ferrous metal produced through advanced pyrometallurgical or electrolytic refining processes, delivering a minimum purity of 99.97% Pb. It serves as the foundational material for energy storage systems—specifically lead-acid batteries—as well as radiation shielding, cable sheathing, and chemical processing equipment. The key value proposition lies in its exceptional corrosion resistance, high density (11.34 g/cm³), and consistent electrochemical performance, which directly translates to longer battery life and lower total cost of ownership. Strategically, refined lead remains irreplaceable in critical infrastructure and industrial backup power sectors, where reliability and regulatory compliance are paramount.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Pb ≥ 99.97% (by wt.); Impurities (max): Ag ≤ 0.0025%, Cu ≤ 0.001%, As ≤ 0.0005%, Sb ≤ 0.0005%, Sn ≤ 0.0005%, Zn ≤ 0.0005%

• Purity Grade: ASTM B29-03 (Grade 99.97) / GB/T 469-2017 (Grade 99.994 available upon request)

• Physical Form: Virgin ingots (unalloyed); also available as 25–30 kg trapezoidal or 1–2 ton jumbo blocks

• Color & Appearance: Bluish-gray metallic luster, clean surface (no oxides, dross, or visible impurities)

• Density: 11.34 g/cm³ at 20°C

• Melting Point: 327.5°C

• Packaging Options: Steel-strapped wooden pallets (1.25–1.5 MT per pallet), shrink-wrapped; 20 MT per 20-ft container; custom export-grade crating for jumbo blocks

• Shelf Life: Indefinite when stored indoors in dry, non-corrosive environment (oxidation layer forms but does not degrade performance)

3. Core Industrial Applications

• Primary Industry – Battery Manufacturing (85% of offtake): Used for positive and negative grids, pastes, and terminals in automotive SLI, industrial traction, and stationary energy storage batteries. Performs better than secondary recycled lead due to tighter impurity control (especially silver and bismuth), which reduces hydrogen gassing and self-discharge rates by up to 30%.

• Radiation Shielding (Medical & Nuclear): Fabricated into lead bricks, sheets, and protective linings for X-ray rooms, CT scanners, and nuclear waste transport containers. Its high density and low cost per unit of attenuation outperform equivalent thicknesses of concrete or steel in space-constrained environments.

• Cable Sheathing & Telecommunications: Extruded into seamless corrosion-resistant jackets for submarine and underground power cables. Superior to aluminum or plastic alternatives in moist or acidic soils due to lead’s inherent anodic resistance.

• Chemical Processing & Alloying: Base material for lead-calcium and lead-tin alloys used in anodes for electrowinning (zinc, copper) and in sulfuric acid plant equipment. Delivers longer service life at elevated temperatures compared to lower-grade lead.

4. Competitive Advantages

• Quality Consistency: Each batch is spectrographically tested and certified per ISO 9001:2015; traceable from smelter to delivery. Impurity variation ≤ 5% across shipments.

• Supply Reliability: Long-term off-take agreements with vertically integrated smelters (primary and secondary) ensuring stable volume even during LME price volatility. On-time delivery rate > 97% over 24 months.

• Logistics Capability: Dedicated hazardous material (Class 9, UN3077) logistics network with pre-cleared port routing from major export hubs (Asia, South America, Europe).

• Price Competitiveness: Priced at LME Pb cash settlement plus a fixed, transparent premium. Volume discounts from 500 MT/month.

• Sustainability & Compliance: 100% of primary lead sourced from smelters meeting OECD Due Diligence Guidance. Secondary refined lead available with verified recycled content (≥70%) supporting circular economy and lower carbon footprint (scope 3 reduction claims).

• Technical Support: Full material safety data sheets (MSDS), batch certificates of analysis (CoA), and metallurgical advisory for alloy optimization.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT (twenty metric tons) – one full 20-ft general purpose container equivalent

• Loading Capacity: 20MT per standard 20-ft dry container (stacked ing