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STAINLESS STEEL 304 - ALLOY COMPOSITION

Find below the search results for the material you've specified. Please note here this information is NOT to be used for design purposes, and in no event shall MSO be liable for any damages arising from the misuse of this information

Stainless Steel 304

Related Metals:

Reval 30(tm)
Speed-E-Mac 304(tm)
304 SCQ(tm)
5R10(tm)
Prodec 304(tm)
Project 70 304(tm)
Project 7000 Stainless 304(tm)
Maxival(tm) 304                                    

Specifications:

AFNOR Z7CN 18-09
AISI 304
AMS 5501
AMS 5513
AMS 5560
AMS 5563
AMS 5564
AMS 5565
AMS 5566
AMS 5567
AMS 5639
AMS 5697
ASTM A167
ASTM A182
ASTM A193 (304, B8, B8A)
ASTM A194
ASTM A213
ASTM A240
ASTM A249
ASTM A269
ASTM A270
ASTM A271
ASTM A276
ASTM A312
ASTM A313
ASTM A314
ASTM A320
ASTM A336
ASTM A358
ASTM A368
ASTM A376
ASTM A409
ASTM A430
ASTM A473
ASTM A478
ASTM A479
ASTM A492
ASTM A493
ASTM A511
ASTM A554
ASTM A580
ASTM A632
ASTM A666
ASTM A688
ASTM A793
ASTM A813
ASTM A814
ASTM A851
DIN 1.4301
MIL A-23196
MIL S-23195
MIL S-23196
MIL S-27419
MIL S-5059
MIL T-5695
MIL T-6845
MIL T-8504
MIL T-8506
QQ S763
QQ S766
UNS S30400

Chemistry Data

Carbon

0.08 max

Chromium

18 - 20

Iron

Balance

Manganese

2 max

Nickel

8 - 10.5

Phosphorus

0.045 max

Silicon

1 max

Sulphur

0.03 max

General Information

Principal Design Features

One of the most widely used and oldest of the stainless steels. This was originally called 18-8 which stood for its chromium and nickel content. It possesses an excellent combination of strength, corrosion resistance and fabricability. It is available in


Applications

The list is endless. Almost every conceivable industry uses some of this material in some way. Everything from stovetops to ball point pen barrels to flatware to fasteners has been fabricated from this alloy.


Machinability

Slow speeds and heavy feeds will minimize this alloys tendency to work harden. Due to long stringy chips, the use of chip breakers is advisable. Many companies now offer premium machinability grades, such as CarTech with their Project 70 and 7000 series.


Corrosion Resistance

Resistant to a wide range of environments between moderately reducing and slightly oxidizing. This covers food, fresh water, sterilizing solutions and dilute nitric and acetic acids.


Welding

All fusion and resistance processes have been successfully employed in welding 304. AWS E/ER308 or 312 filler metal is recommended. For cleaner, stronger welds, may users choose 304L which has a controlled low carbon content designed to reduce carbide pre


Hot Working

Forging, heading and other hot working should follow uniform heating to 2100-2300 F (1149-1260 C). Rapid cooling is necessary to attain maximum corrosion resistance in finished parts.


Cold Working

Readily fabricated by most cold working methods, 304 may require intermediate annealing to avoid cracking or tearing from radical deformation. Full annealing should follow any operation to reduce internal stress and optimize corrosion resistance.


Annealing

1850-2050 F (1010-1121 C) followed by rapid cooling.


Hardening

This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.


Physical Data

Density (lb / cu. in.)

0.285

Specific Gravity

7.9

Specific Heat (Btu/lb/Deg F - [32-212 Deg F])

0.12

Electrical Resistivity (microhm-cm (at 68 Deg F))

432

Melting Point (Deg F)

2650

Modulus of Elasticity Tension

28

Mechanical Data

Form

Strip

Condition

Extra Full Hard

Temper

70

Tensile Strength

200

Rockwell

C45


Form

Strip

Condition

Full Hard

Temper

70

Tensile Strength

185

Yield Strength

140

Elongation

8

Rockwell

C41


Form

Strip

Condition

Half Hard

Temper

70

Tensile Strength

150

Yield Strength

110

Elongation

17

Rockwell

C32


Form

Strip

Condition

Quarter Hard

Temper

70

Tensile Strength

125

Yield Strength

75

Elongation

25

Rockwell

C25


Form

Strip

Condition

Three Quarter Hard

Temper

70

Tensile Strength

175

Yield Strength

135

Elongation

11

Rockwell

C37

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