---
title: "High-Purity Copper-Tin Master Alloy"
industry: "Non-Ferrous Metal Production"
verification_protocol:
  urn: "URN:CNFX:ME:HIGH_PURITY_COPPER_TIN_MASTER_ALLOY"
  data_integrity_hash: "6c00f473e0593965c30527dd5e42f818"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:HIGH_PURITY_COPPER_TIN_MASTER_ALLOY"
  data_source_uri: "https://cnfx.com/llms/industry/non-ferrous-metal-production/product/high-purity-copper-tin-master-alloy.md"
  official_resource_url: "https://cnfx.com/industry/non-ferrous-metal-production/product/high-purity-copper-tin-master-alloy"
  is_verified_logic: true
attributes:
  primary_spec:
    status: "config-dependent"
    typical_range: "Melting temperature: 850-1050°C, Composition range: 88-92 wt% Cu, 8-12 wt% Sn, Impurity limits: &lt;0.02 wt% Pb, &lt;0.01 wt% Fe, &lt;0.005 wt% Bi"
    unit: "%"
  secondary_spec:
    status: "config-dependent"
    typical_range: "Melting temperature: 850-1050°C, Composition range: 88-92 wt% Cu, 8-12 wt% Sn, Impurity limits: &lt;0.02 wt% Pb, &lt;0.01 wt% Fe, &lt;0.005 wt% Bi"
    unit: "ppm"
engineering_limits:
  max_safe_operating_point:
    value: 15
    unit: "wt"
    consequence: "Liquid phase separation due to Cu-Sn miscibility gap below 798°C, Density difference (Cu: 8.96 g/cm³, Sn: 7.31 g/cm³) causing gravitational segregation, Peritectic reaction at 798°C forming brittle Cu₄₁Sn₁₁ phase"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Insufficient superheating above liquidus temperature (1040°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Induction melting with 50-100°C superheat and electromagnetic stirring at 0.1-0.3 Tesla field strength"
  - node_2:
      trigger: "Atmospheric oxygen ingress during processing"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Argon shielding with &lt;10 ppm O₂ and vacuum degassing at 0.1-1.0 mbar pressure"
bom_nodes:
  copper-matrix:
    type: "component"
    urn: "URN:CNFX:ME:COPPER_MATRIX"
    interface_type: "physical-logic-coupled"
  tin-alloying-element:
    type: "component"
    urn: "URN:CNFX:ME:TIN_ALLOYING_ELEMENT"
    interface_type: "physical-logic-coupled"
  grain-refiner:
    type: "component"
    urn: "URN:CNFX:ME:GRAIN_REFINER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 1190-1:2012: COPPER AND COPPER ALLOYS - DESIGNATION SYSTEM - PART 1: DESIGNATION OF MATERIALS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 1705-1:1987: COPPER-TIN ALLOYS; CASTING ALLOYS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/non-ferrous-metal-production/product/high-purity-copper-tin-master-alloy.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "9439f2e642c8caac4481b84867f00ee877e954e42932280f22046ee30d2d641e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: High-Purity Copper-Tin Master Alloy

## 1. Technical Definition
Pre-alloyed copper-tin material for precise bronze alloy production

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Melting temperature: 850-1050°C, Composition range: 88-92 wt% Cu, 8-12 wt% Sn, Impurity limits: &lt;0.02 wt% Pb, &lt;0.01 wt% Fe, &lt;0.005 wt% Bi**. Failure boundary: **Tin segregation exceeding 15 wt% local concentration, Oxygen content &gt;0.03 wt% causing oxide inclusions, Intermetallic phase formation at cooling rates &lt;5°C/s**, Mechanism: **Liquid phase separation due to Cu-Sn miscibility gap below 798°C, Density difference (Cu: 8.96 g/cm³, Sn: 7.31 g/cm³) causing gravitational segregation, Peritectic reaction at 798°C forming brittle Cu₄₁Sn₁₁ phase**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Insufficient superheating above liquidus temperature (1040°C) | 8 | Incomplete dissolution of tin particles forming heterogeneous microstructure | Induction melting with 50-100°C superheat and electromagnetic stirring at 0.1-0.3 Tesla field strength |
| Atmospheric oxygen ingress during processing | 8 | Formation of SnO₂ inclusions exceeding 0.03 vol% causing porosity in final castings | Argon shielding with &lt;10 ppm O₂ and vacuum degassing at 0.1-1.0 mbar pressure |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| primary_spec | Config-dependent | % | Verified |
| secondary_spec | Config-dependent | ppm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Induction Melting Furnace**, **Spectrometer Analyzer**, **Continuous Casting Machine**  
**Downstream Applications**: Bronze Bearings, Marine Propellers, Electrical Connectors  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the benefits of using a copper-tin master alloy over separate elements?
**A**: Our copper-tin master alloy ensures precise tin distribution, reduces melting time and energy consumption, minimizes tin oxidation loss, and provides consistent bronze alloy composition for superior casting quality.

### Q: How does this master alloy improve bronze production efficiency?
**A**: The pre-alloyed material eliminates separate tin melting, reduces alloying time by up to 40%, provides better grain refinement, and ensures uniform microstructure in final bronze products.

### Q: What specifications are critical for selecting a copper-tin master alloy?
**A**: Key specifications include copper purity (typically 99.9+%), tin content consistency, low lead content (&lt;100ppm), controlled particle size for melting efficiency, and density matching your furnace requirements.

## 6. Manufacturing Compliance
- ISO 1190-1:2012: COPPER AND COPPER ALLOYS - DESIGNATION SYSTEM - PART 1: DESIGNATION OF MATERIALS
- DIN 1705-1:1987: COPPER-TIN ALLOYS; CASTING ALLOYS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: High-Purity Copper-Tin Master Alloy](https://cnfx.com/industry/non-ferrous-metal-production/product/high-purity-copper-tin-master-alloy)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: HIGH_PURITY_COPPER_TIN_MASTER_ALLOY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: b247ac5e
