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AISI 4130 Alloy Steel | API 6A 21st Edition
AISI 4130 API 6A: High-Integrity Alloy for Sour Service & HPHT. Certified chromium-molybdenum steel for critical wellhead and christmas tree components.
AISI 4130 Alloy Steel | API 6A 21st Edition
AISI 4130 is a low-alloy steel containing nominal 0.30% Carbon, 1% Chromium, and 0.20% Molybdenum. At Progressive Metal Manufacturing, our 4130 inventory is strictly processed to meet the API 6A 21st Edition specifications. This material is renowned for its excellent weldability and response to heat treatment, achieving the high toughness required for subsea and surface pressure-control equipment.
Chemical Composition | Percentage % |
|---|---|
Carbon | 0.43 – 0.48% |
Manganese | 0.75 – 1.00% |
Silicon | 0.15 – 0.35% |
Chromium | 0.80 – 1.10% |
Molybdenum | 0.15 – 0.25% |
Phosphorous | 0.035% Max |
Sulphur | 0.040% Max |
Certified Quality Assurance
At Progressive Metal Manufacturing, we ensure that our AISI 4130 alloy steel meets the most demanding industrial requirements through a rigorous quality assurance framework. Our stock is fully compliant with ISO 9001 standards, and we provide complete material transparency by offering BS EN 10204 3.1 mill certificates or cast and analysis documentation upon request. Whether your project requires specific heat-treat traceability or strict chemical consistency, our certified supply chain provides the technical certainty needed for high-pressure engineering.
Industrial Applications & Versatility
The exceptional strength-to-weight ratio and weldability of AISI 4130 make it a cornerstone material for the oil and gas industry.
Engineered to perform under extreme stress and corrosive conditions, this chromium-molybdenum alloy is the preferred choice for critical infrastructure and subsea components.
Typical applications for our 4130 stock include the manufacturing of high-pressure valve bodies,
heavy-duty pumps, and specialized fittings. From exploration hardware to refinery components,
Progressive Metal Manufacturing provides the structural resilience and material toughness that power the global energy sector.
Precision Supply & Custom Specifications
We operate as a premier stockholder of AISI 4130, providing versatile supply options
that cater to both raw machining and high-precision requirements.
Our facility is equipped to deliver materials as full-length bars or bespoke cut-to-size blanks,
reducing your preparation time and material waste.
Our current inventory availability includes:
Round Bar (Diameters): Precision-stocked from 50mm to 366mm.
Precision Ground Bar: For applications requiring tight tolerances and a superior surface finish, we offer high-tensile ground steel options.
Our veteran technical sales team is ready to assist with your specific alloy steel enquiries,
ensuring your dimensions and tolerances are met with absolute accuracy.
AISI 4140 (80 KSI / 110 KSI)
