440c Stainless Steel

GRADE STAINLESS STEEL 440C | AISI 440C | UNS S44004

Stainless Steel 440C is a high carbon chromium stainless steel. It has great corrosion resistance when hardened. It shows great resistance to wear and abrasion. It is magnetic in all conditions and yields the highest hardnesses of hardenable stainless steels.

440C Bearing Quality (BQ) is a Martensitic stainless steel with high strength, corrosion resistance and hardness obtained by low temperature heat treatment.

Typical Applications

  • Balls
  • Bearings
  • Races
  • Nozzles
  • Oil well pump parts
  • Valve parts
  • Cams
  • Aircraft parts

Chemistry (range or maximum in %)

Grade C MN S NI CR Other
440C .95/1.20 1.00 0.03 0.75 16.00/18.00 Mo .40/.65
Cu .50
440C BQ

Grade 440C Bar Properties

Grade Shape Size Range Tensile KSI Elongation % Red. of area % Brinell Hardness Relative Machinability * Specification
440C Rounds 1/4″ – 8″ 110 65 14 25 230 40% AMS 5630/ASTM A-276
440C BQ Rounds 1/2″ – 6″

Cronidur® 30 Stainless Steel

Cronidur® 30, a stainless martensitic steel, has greater corrosion resistance then 440c, and is longer wearing. Applications include aviation, medical engineering, industrial applications, precision mechanics, and many more!

Cronidur® 30 is the ideal solution!

  • For tools and machine parts which need high toughness under static and dynamic stresses
  • For tools and machine parts which are in contact with very corrosive fluids or gases even under bad abrasive conditions
  • Compared to the commonly used tool steels 1.2316, 1.4112 and 1.4125 if higher corrosion resistance is requested
  • And/or if there are higher requirements concerning grindability and polishabilty to achieve better surface conditions

OUR
OFFICES

South Carolina

2217 E. Bobo Newsome Hwy
Hartsville, South Carolina 29550

Map & Driving Directions

800.798.5619 | toll free
843.383.2182 | phone
843.383.2183 | fax

Las Vegas

6335 N. Hollywood Blvd, Suite 130
Las Vegas, Nevada 89115

Map & Driving Directions

800.798.5619 | toll free
702.405.2710 | phone
702.405.2714 | fax

Connecticut

322 Main St. 2W-1R
Willimantic, CT 06226

Map & Driving Directions

860.455.2191 | phone
860.455.2109 | fax

Ohio

819 Mckay Ct Suite 203
Boardman, Oh 44512

Map & Driving Directions

877-313-1053 | toll free
330-272-0850 | phone

AERO METALS ALLIANCE

Aero Metals Alliance (AMA) provides Aluminium, Stainless Steel, Alloy Steel, Titanium, Nickel Alloys and supply chain management services to the world’s leading aerospace companies. We currently operate from fourteen Service Centres in five countries throughout the America, Europe and Asia

This enables us to aggregate demand across a single supply chain on behalf of the world’s leading OEMs whilst at the same time providing a truly responsive local service to meet the needs of individual sub-contractors anywhere in the world.

Each of our Service Centres are equipped with the latest technology to meet the specific needs of each of our customers.

OUR BUSINESSES

In the markets in which they operate, our businesses have established their own reputations
for industry experience, knowledge and expertise.

Gould Alloys
Progressive Alloy Steels Unlimited
Service Centers Aero
Sunshine Metals Inc.
Wilsons Metals
Aero Metals Alliance