302

302 Stainless Steels to A 240/A 240M (2012)

302 - Specification & Application

  • A 240/A 240M (2012) - Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
  • A 313/A 313M (2010) - Stainless Steel Spring Wire
  • A 314 (2008) - Stainless Steel Billets and Bars for Forging
  • A 368 (2009) - Stainless Steel Wire Strand
  • A 473 (2009) - Stainless Steel Forgings
  • A 478 (2008) - Chromium-Nickel Stainless Steel Weaving and Knitting Wire
  • A 479/A 479M (2011) - Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
  • A 492 (2009) - Stainless Steel Rope Wire
  • A 493 (2009) - Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
  • A 511/A 511M (2012) - Seamless Stainless Steel Mechanical Tubing
  • A 554 (2011) - Welded Stainless Steel Mechanical Tubing
  • A 580/A 580M (2012) - Stainless Steel Wire
  • A 666 (2010) - Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
  • A 959 (2011) - Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
  • SAE AMS-QQ-S-763B (1998) - Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings Standard Withdrawn
  • SAE AMS-S-7720A (1997) - Steel, Corrosion-Resistant (18-8) Bars, Wire and Forging Stock (Aircraft Quality)
  • SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels
  • SAE J 467 (1968) - Special Purpose Alloys

Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Chemical composition(wt.%) of 302 grade: to A 240/A 240M (2012)

Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.15
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 18.0 19.0
Ni 8.00 10.00

302 - Detail

A 240/A 240M (2012) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General  
Comment  Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)  

Mechanical properties of grade 302 A 240/A 240M (2012)

Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
633 (≥) 696 (≥) 21 41 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical properties of grade 302 A 240/A 240M (2012)

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm		 Modulus of elasticity
kN/mm2		 Expansion rate
829 (≥) 871 (≥) 41 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 223
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
788 358 423

Equivalent Grade

1 UNS T72301 2 W2-A 3 T30102 4 T30103 5 T30104 6 T30105 7 T30106 8 T30107 9 T30108 10 T30109 11 T72301 12 W2-A 13 301 14 A 167 Type 301 15 A 240 Type 301 16 A 554 MT 301 17 A 666 Type 301 18 A 240 S30100 19 A 666 S30100 20 S30100

Equivalent Products

1 06Cr19Ni10/S30408/304/S30400/1.4301 Tube

Product shapes we supply:

We can customize the production of 302 grade, contact us for the best solution.
–sales@specificsteel.com