NAICS 33121 - Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
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Related NAICS Codes for NAICS 33121
Click on any NAICS code to explore that specific industry within NAICS 33121
| NAICS Code | Industry Title |
|---|---|
| 331210 | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
What is NAICS 33121
NAICS code 33121 covers the manufacturing of iron and steel pipes and tubes from purchased steel. This industry primarily involves the fabrication of various types of iron and steel pipe products, including seamless and welded varieties, which are essential components in multiple infrastructure, construction, and industrial applications. Businesses operating in this sector typically engage in shaping, forming, welding, and finishing steel materials to produce pipes and tubes that meet specific dimensional and quality standards. These manufacturers rely on purchased steel as the raw material input, transforming it into durable pipe and tube products for diverse end-users. Government agencies contract these services to fulfill critical infrastructure needs such as water distribution systems, energy pipelines, defense facilities, and transportation projects, where reliable, high-quality steel piping is crucial for safety and operational performance.
Breakdown for NAICS 33121
- Manufactures iron and steel pipes and tubes from purchased steel materials.
- Includes both seamless and welded pipe and tube production.
- Covers products for infrastructure, industrial, and defense applications.
- Subject to industry standards such as ASTM and API specifications.
- Typical business size standards range based on employee count or revenue.
- Supports government projects requiring reliable, high-quality steel pipe.
Included Activities for NAICS 33121
- Cutting, shaping, and welding steel materials to form pipes and tubes.
- Producing seamless steel pipes through extrusion or rotary piercing.
- Fabricating welded steel tubes from rolled steel sheets or strips.
- Applying coatings or treatments to enhance corrosion resistance.
- Performing quality control and testing to meet government and industry standards.
- Packaging and preparing pipe products for shipment and installation.
- Custom manufacturing pipe products to meet specific government project requirements.
- Maintaining compliance with environmental and safety regulations during production.
Business Types for NAICS 33121
- Steel pipe and tube manufacturers
- Metal fabrication companies
- Industrial suppliers specializing in steel products
- Defense contractors supplying infrastructure materials
- Construction materials manufacturers
- Specialty pipe producers focused on infrastructure projects
Government Buyers for NAICS 33121
Federal, state, and local government agencies are among the primary purchasers of iron and steel pipes and tubes manufactured under this NAICS code. Key buyers include the Department of Defense, the Department of Transportation, the Environmental Protection Agency, and public utility commissions. These entities require steel pipes and tubes to support military installations, highway and bridge construction, water and sewage systems, and energy infrastructure projects. The government’s demand is driven by the need for durable, standardized pipe products that comply with strict regulatory and safety standards to ensure long-lasting and efficient service in public works and defense applications.
Contract Types & Procurement for NAICS 33121
Contracts for iron and steel pipe and tube manufacturing typically include firm-fixed-price, indefinite delivery indefinite quantity (IDIQ), and requirements contracts. Procurement methods often involve competitive bidding processes, including sealed bids and negotiated contracts, especially for large infrastructure projects. Contract values vary widely depending on project scope, ranging from small purchase orders for maintenance and repair to multimillion-dollar contracts for large-scale pipeline and construction projects. Government contracting officers emphasize compliance with quality certifications and industry standards, and contracts usually include strict delivery schedules and technical specifications to meet project requirements.
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