---
title: "Header Body"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HEADER_BODY"
  data_integrity_hash: "8d54e3449b7d4353f1c0d012e080d1f7"
  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:HEADER_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/header-body.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/header-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-350 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 450
    unit: "MPa"
    consequence: "High-cycle fatigue from pressure pulsations exceeding 20 Hz with amplitude &gt;15% of mean pressure, or stress corrosion cracking in chloride environments &gt;50 ppm at temperatures &gt;60°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal cycling between -40°C and 200°C at &gt;5 cycles/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integral forged construction with controlled cooling rates during manufacturing and post-weld heat treatment at 1050°C for 2 hours"
  - node_2:
      trigger: "Cavitation from fluid velocity exceeding 15 m/s through 90° port transitions"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Computational fluid dynamics-optimized radius transitions (R/D ratio &gt;1.5) and surface hardening to 55 HRC minimum"
bom_nodes:
  fluid-passage:
    type: "component"
    urn: "URN:CNFX:ME:FLUID_PASSAGE"
    interface_type: "physical-logic-coupled"
  port-interface:
    type: "component"
    urn: "URN:CNFX:ME:PORT_INTERFACE"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI B4.1-1967 - PREFERRED LIMITS AND FITS FOR CYLINDRICAL PARTS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 8580:2003-09 - MANUFACTURING PROCESSES - TERMS AND DEFINITIONS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/header-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0edcd8c12b67efb2aaa7c4542ed135b7f17cf8fe28d9b301c4e17be386698375"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Header Body

## 1. Technical Definition
The main structural component of a header or manifold that houses fluid passages and connection ports.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-350 bar**. Failure boundary: **Material yield strength at 450 MPa (AISI 316L stainless steel) or fatigue limit at 10^7 cycles under 280 MPa alternating stress**, Mechanism: **High-cycle fatigue from pressure pulsations exceeding 20 Hz with amplitude &gt;15% of mean pressure, or stress corrosion cracking in chloride environments &gt;50 ppm at temperatures &gt;60°C**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Thermal cycling between -40°C and 200°C at &gt;5 cycles/hour | 8 | Thermal fatigue cracking at weld joints between header body and connection ports | Integral forged construction with controlled cooling rates during manufacturing and post-weld heat treatment at 1050°C for 2 hours |
| Cavitation from fluid velocity exceeding 15 m/s through 90° port transitions | 8 | Erosion-corrosion pitting at internal passage surfaces leading to wall thickness reduction &gt;0.5 mm/year | Computational fluid dynamics-optimized radius transitions (R/D ratio &gt;1.5) and surface hardening to 55 HRC minimum |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Coordinate Measuring Machine**, **Industrial Cleaning System**  
**Downstream Applications**: Engine Intake Manifolds, Hydraulic System Headers, Industrial Heat Exchanger Bodies  

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

### Q: What is a header body used for in machinery?
**A**: A header body serves as the main structural component in headers or manifolds, housing fluid passages and connection ports to distribute or collect fluids in industrial systems.

### Q: Which materials are best for header bodies in corrosive environments?
**A**: Stainless steel header bodies offer excellent corrosion resistance for harsh environments, while aluminum alloy provides lightweight durability, and carbon steel is cost-effective for general use.

### Q: What are the key components of a header body assembly?
**A**: Key components include fluid passages for flow, mounting flanges for secure installation, and port interfaces for connecting to pipes, valves, or other equipment in the system.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- ANSI B4.1-1967 - PREFERRED LIMITS AND FITS FOR CYLINDRICAL PARTS
- DIN 8580:2003-09 - MANUFACTURING PROCESSES - TERMS AND DEFINITIONS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Header Body](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/header-body)**

### 🌐 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**: HEADER_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 30fcb1ab
