Type 410 is the basic chromium grade of stainless steel. It combines good corrosion resistance with the ability to develop hardness and mechanical properties by conventional heat treating methods that are similar to those of 4130 alloy steel. It is magnetic in all conditions.

UNS S41000

Stock Lengths 10' to 12'

Max Brinell 241
Unit of Measure

Specifications

Estimated Weight per Foot

N/A 1.044 lb

Estimated Weight 12-Ft. Bar

N/A 12.53 lb

Analysis

N/A Carbon .10/.15
Manganese 1.00 Max.
Phosphorus .04 Max.
Sulphur .030 Max.
Si. 1.00 Max.
Cr.11.50/13.50
Ni. .75 Max.0
Mo. .50 Max.
Cu. .50 Max.

Specifications

N/A The following specifications are generally applicable:
Sheets & Plates: AMS 5504, QQ-S-766, ASTM A 176, ASTM A 240
Bars: AMS 5613, QQ-S-763, ASTM A 276, ASTM A 479

Applications

N/A This grade is used for applications requiring good mechanical properties and involving corrosive conditions that are not too severe, such as valve parts, cutlery, food industry machine parts, screws, bolts, pump rods and pistons, etc. In the annealed condition, it may be drawn or formed. In the aircraft industry, Type 410 is used for parts such as compressor shrouds, where oxidation resistance is required up to 1000°F. Useful at high temperatures only when stresses are low.

Corrosion Resistance

N/A This material is resistant to corrosion from the atmosphere, fresh water, iron-bearing mine waters, food acids, neutral and basic salts, mild acids and alkalis. Maximum corrosion resistance of this grade is obtained by hardening and polishing.

Resistance to Scaling

N/A Resists scaling at temperatures up to approximately 1200° - 1300°F in continuous service. Over 1300°F it has relatively low strength, and resistance to oxidation is reduced.

Mechanical Properties

N/A Specification AMS 5504 requires the following properties of sheets and plates in the annealed condition:
Tensile Strength - 95.000 psi Max.
Elongation in 2" (0.030" thick & under)- 12% Min.
Elongation in 2" (under 0.030" thick )- 15% Min.

Hardenability

N/A Specification AMS 5504 requires that material 3/8" thick and under, and 3/8" specimens from heavier material, shall be capable of attaining hardness of Rockwell "C" 35-45 after being heated to 1750°F, held at heat to 15-30 minutes, and cooled in still air.

Machinability

N/A Type 410 has better machining characteristics than the chromium-nickel grades. It has a machinability rating of 54%, with 1212 rated 100%. Surface cutting speed on automatic screw machines is approximately 90 feet per minute.

Weldability

N/A May be welded by all the commercial processes except forge or hammer welding. Large sections should be preheated prior to welding. Because of its air-hardening properties, annealing after welding is recommended to obtain maximum ductility and toughness.

Forming

N/A This grade has fair forming and stamping properties.

Forging

N/A Forge between 2000° and 2200°F. Do not forge below 1650°F. Cool slowly.

Annealing

N/A Full annealing range is between 1550° and 1650°F. Cool slowly in furnace. Low annealing range is between 1200° and 1400°F. Cool in air.

Hardening

N/A Hardening range is between 1750° and 1850° Quench large sections in oil. Small sections may be quenched in air. Temper to required hardness.