Sierra Alloys

What Sierra Alloys does

Sierra Alloys Co. is a specialty metals manufacturer founded in 1974 and based in Irwindale, California, producing custom-forged and rolled titanium, stainless steel, alloy steel, and Inconel bar, plate, and block products. Its manufacturing footprint of nearly 114,000 square feet houses three fast-acting open die forging presses (350-ton, 500-ton, and 800-ton), rolling capabilities for plate up to 14 inches wide, and NADCAP-certified in-house heat treatment. Core product grades include titanium alloys (Ti 6Al-4V, Ti 6Al-4V ELI, Ti 6Al-2Sn-4Zr-2Mo, Ti 10V-2Fe-3Al), precipitation-hardened stainless steels (13-8PH, 15-5PH), alloy steels (4340, 4330), and nickel superalloys (Inconel 718, 625), supplied across thickness ranges of 0.500 to 4.0 inches.

The company operates as a B2B custom mill product supplier to aerospace OEMs and defense contractors, with named relationships spanning Boeing, Lockheed Martin, Northrop Grumman, Collins Aerospace, GE Aviation, Pratt & Whitney, Bombardier, Embraer, Gulfstream, Sikorsky, Bell Helicopter, Spirit AeroSystems, and Textron Aviation. Pricing is quote-based and not publicly disclosed; revenue is generated per order from products manufactured to exact customer-specified sizes and exact lot quantities. Sierra Alloys is a wholly owned subsidiary of STS Metals Inc., a Tinicum-controlled holding company formed in 2019, which also includes TSI Titanium, Sierra Sheet & Plate, and Brown-Pacific; in 2024 STS Metals acquired Valley Forge and folded its forging capabilities into Sierra Alloys.

The company's go-to-market is enterprise field sales targeting aerospace primes, supported by AS9100D certification (valid through 2026), NADCAP heat treating accreditation (audited 2024), and direct quality approvals from Boeing, Lockheed Martin, Northrop Grumman, and Collins Aerospace. Its stated value proposition is a 'lowest total cost solution' built on industry-leading lead times, delivery reliability, customization that eliminates customer material waste, and support for emergent demand via intermediate staged inventories.

Name

Sierra Alloys

Legal name

Sierra Alloys Co.

Website

https://sierraalloys.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

Sierra Alloys is a US specialty metals manufacturer producing custom-forged titanium, stainless steel, alloy steel, and Inconel bar, plate, and block products, primarily serving aerospace OEMs and defense contractors from its Nadcap-certified Irwindale, California facility.

Ownership category

akta.pro rank

Product category

Specialty Metal Mill Products

NAICS

Forging and Stamping (3321)

SIC

Metal Forgings & Stampings (3460)

akta.pro primary industry

Aerospace Structural Metals & Alloys (Titanium, Aluminum, Nickel) (IMABANAL)

akta.pro secondary industries

Metal Airframe Structures & Machined Parts (IMABAEAC), Specialty & Alloy Steel (Stainless, Tool Steel, Electrical Steel, High-Strength/HSLA) (IMAKABAJ)

Keywords

• Specialty metal manufacturing
• Titanium forging products
• Aerospace mill products
• Custom alloy bar plate
• Inconel superalloy forging

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D

Revenue model

1. Specialty Metal Mill Products: Revenue generated from manufacturing and selling custom-forged and rolled titanium, stainless steel, alloy steel, and Inconel bar, plate, and block products. Products are sold in exact customer-specified sizes and lot quantities with pricing based on material type, specifications, and order volume. The company provides a total cost solution through customized products eliminating waste for customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Sierra Alloys manufactures custom-forged and rolled specialty metal mill products — titanium, stainless steel, alloy steel, and Inconel superalloys — supplied as bar, plate, and block in exact customer-specified sizes and exact lot quantities. Products are produced to aerospace-grade specifications using open die forging, rolling, NADCAP-certified heat treatment, and cutting/conditioning operations for aerospace OEMs and defense contractors.

Product overview

Sierra Alloys is a premier supplier of specialty metal mill products, operating as a single unified product offering focused on forged and rolled titanium, stainless steel, alloy steel, and Inconel superalloy bar, plate, and block products. The company's core differentiator is its ability to produce custom sizes in custom lot quantities, allowing customers to receive exact specifications with no excess inventory. Products are manufactured in-house using open die forging presses (350-ton, 500-ton, and 800-ton), rolling capabilities for plate up to 14 inches wide, in-house heat treatment with NADCAP certification, and various cutting services. The four main product categories are Titanium (including TI 6AL-4V and TI 10V-2Fe-3Al), Stainless Steel PH grades (13-8PH and 15-5PH), Alloy Steel (4340 and 4330), and Inconel (718 and 625), each available in flat/rectangular bar, narrow plate, and block configurations with thickness ranges of 0.500 to 4.0 inches for bar and plate.

Differentiator

Problem solved

Functional benefit

Products and services

• Titanium Products Forged titanium bar, plate, and block products including TI 6AL-4V, TI 6AL-4V ELI, TI 6AL-6V-2SN, TI 6AL-2SN-4Zr-2Mo, and TI 10V-2Fe-3Al alloys supplied to aerospace OEMs and defense contractors in exact customer-specified sizes and lot quantities.
• Stainless Steel Products Precipitation-hardened stainless steel products including 13-8PH and 15-5PH alloys supplied as forged bar, plate, and block in custom sizes and lot quantities for aerospace structural and component applications.
• Alloy Steel Products Alloy steel forged products including 4340 and 4330 grades supplied as forged bar, plate, and block in custom sizes and lot quantities for aerospace structural and high-strength component applications.
• Inconel Products Nickel-based superalloy products including Inconel 718 and Inconel 625 supplied as forged bar, plate, and block in custom sizes and lot quantities for high-temperature aerospace engine and structural applications.

Quantifiable outcome

• Best-In-Class service levels with delivery reliability
• +2 more outcomes

Named customers19 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Valley ForgecoreStrategic or Co-development Partner · 1 January 2024Acquired by STS Metals in 2024 and integrated into the Sierra Alloys business, further enhancing forging capabilities within STS Metals.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Market position

Strengths4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sierra-alloys-co-inc-

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sierra Alloys