Expanded Inventory: 4145H Modified Chemistry Now In Stock

4145H Modified Chemistry Now Available from Stock

HOUSTON, TX - OSS Metals is pleased to announce a significant expansion of our 4145H modified chemistry inventory. This material is now available from stock in a comprehensive range of sizes for immediate delivery.

Inventory Details

Available Sizes

2.500" diameter

3.000" diameter

3.500" diameter

4.000" diameter

4.500" diameter

5.000" diameter

5.500" diameter

6.000" diameter

6.500" diameter

7.000" diameter

8.000" diameter

9.000" diameter

10.000" diameter

Standard Lengths

20-24 foot random lengths

Cut to length service available

Condition

Quenched and tempered

Normalized available on request

Custom heat treatment available

Material Specifications

Chemical Composition

4145H modified chemistry is controlled to tighter ranges than standard 4145:

Element	Range

Carbon	0.42-0.49%
Manganese	0.65-1.10%
Chromium	0.75-1.20%
Molybdenum	0.15-0.25%
Silicon	0.15-0.35%
Phosphorus	0.025% max
Sulfur	0.025% max

Mechanical Properties (Q&T)

Tensile Strength: 140-160 ksi minimum (varies by size)

Yield Strength: 125-145 ksi minimum

Elongation: 15% minimum

Reduction of Area: 45% minimum

Hardness: 285-341 HBW

Applications

4145H modified chemistry is the preferred grade for demanding oil & gas applications:

Drilling Components

Drill collar connections

Stabilizer sleeves

Downhole tool bodies

Sub assemblies

Production Equipment

Wellhead components

Pressure control equipment

High-strength fasteners

Wear components

Why 4145H Modified?

Hardenability Control

The "H" designation indicates controlled hardenability, ensuring consistent response to heat treatment across production lots.

Tight Chemistry

Modified chemistry provides:

Better control of mechanical properties

Improved consistency lot-to-lot

Enhanced performance in demanding applications

API 7-1 Compliance

Our 4145H mod meets the requirements of API Specification 7-1 for drill stem elements.

Quality Assurance

All material includes:

Original mill MTR with full chemistry and mechanical properties

Heat treatment certification

Hardness verification

Full traceability from heat to delivery

Value-Added Services

We can provide:

Precision saw cutting to length

Additional heat treatment if required

Rough machining

Special testing on request

Availability and Lead Time

Stock Material

Available for immediate shipment on orders placed by 2:00 PM local time.

Non-Stock Sizes

Available on short lead times from mill sources.

How to Order

Contact our sales team for pricing and availability:

Phone: (281) 789-2380 Email: sales@ossmetals.com

Provide:

Size and quantity required

Desired lengths or cut requirements

Any special requirements (testing, certification, etc.)