• Subscribe
    Fill something at the
    'Theme option > Overall Elements > Top Bar > Top Bar Subscribtion' section
  • Login
contact: sales@scimetals.com

304 STAINLESS (S30400)


The following specifications cover Stainless Steel 304

  • 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

Property Results

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


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

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 the widest variety of forms and sizes of any stainless steel.

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.

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 precipitation at the weld boundaries.

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



Limitation of Liability and Disclaimer of Warranty: In no event will South Coast Industrial Metals or any of its affiliates be liable for any damages arising from the use of the information included in this document or that it is suitable for the ‘applications’ noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. South Coast Industrial Metals, Inc. assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.