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Stainless Steel Specifications

 

BAR CHEMICAL COMPOSITION                                     BAR MECHANICAL COMPOSITION

 
Stainless Steels - Specifications

Stainless steel is essentially a low carbon steel which contains chromium at 10% or more by weight. It is this addition of chromium that gives the steel its unique stainless, corrosion resisting properties. The corrosion resistance and other useful properties of the steel are enhanced by increased chromium content and the addition of other elements such as molybdenum, nickel and nitrogen.

Grades - Chemical Composition and Equivalent Standards

AISI ASTM
EN DIN
C % Max
Mn % Max
Si % Max
S % Max
P % Max
Cr % Max
Ni % Max
Mo % Max
Others %
201
-
0.15
5.5-7.5
1.00
0.030
0.060
16.00-18.00
3.50-5.50
-
-
202 - 0.15 7.5-10 1.00 0.030 0.060 17.00-19.00 4.00-6.00 - -
302 1.4310 0.15 2.00 1.00 0.030 0.045 17.00-1900 8.00-10.00 - -
302HQ 1.4567 0.03 2.00 1.00 0.030 0.045 17.00-19.00 9.00-10.00 - Cu : 3.00-4.00
303 1.4305 0.15 2.00 1.00 0.15 Min 0.20 17.00-1900 8.00-10.00 - Cu : 1% max
303EHS - 0.15 2.00 1.00 0.30-0.33 0.20 17.00-19.00 8.00-10.00 - Cu : 1% max
304 1.4301 0.08 2.00 1.00 0.030 0.045 18.00-20.00 8.00-11.00 - -
304HC - 0.05 2.00 1.00 0.030 0.045 18.00-20.00 8.50-9.50 - Cu : 2.00-2.50
304L 1.4306 0.03 2.00 1.00 0.030 0.045 18.00-20.00 8.00-12.00 - -
308LER 1.4331 0.02 1.5-2.0 0.50 0.020 0.025 19.00-21.00 9.50-11.00 - -
309LER 1.4332 0.03 1.5-2.0 0.50 0.015 0.020 23.00-25.00 12.00-14.00 - -
310 1.4841 0.25 2.00 1.50 0.030 0.045 24.00-26.00 19.00-22.00 - -
310S 1.4842 0.08 2.00 1.50 0.030 0.045 24.00-26.00 19.00-22.00 - -
316 1.4401 0.08 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 -
316L 1.4404 0.03 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 -
316LER 1.4430 0.02 1.5-2.0 0.50 0.020 0.020 18.00-20..00 12.00-14.00 2.00-2.75 -
316Ti 1.4571 0.08 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 Ti : Min (5xC%)
317LN 1.4438 0.03 2.00 1.00 0.030 0.045 18.00-20.00 11.00-15.00 3.00-4.00 N : 0.10-0.22
321 1.4541 0.08 2.00 1.00 0.030 0.045 17.00-19.00 9.00-12.00 - Ti : Min (5xC%)
410 1.4006 0.15 1.00 1.00 0.030 0.040 11.50-13.50 - - -
416 1.4005 0.15 1.25 1.00 0.15 Min 0.060 12.00-14.00 - - -
416XM - 0.15 1.25 1.00 030-0.33 0.060 12.00-14.00 - - -
420 1.4021 0.15 Min 1.00 1.00 0.030 0.040 12.00-14.00 - - -
430 1.4016 0.12 1.00 1.00 0.030 0.040 16.00-18.00 - - -
430L - 0.03 1.00 1.00 0.030 0.040 16.00-18.00 - - -
430F 1.4104 0.12 1.25 1.00 0.15 Min 0.060 16.00-18.00 - - -
431 1.4057 0.20 1.00 1.00 0.030 0.040 15.00-17.00 1.25-2.50 - -

Benefits of Stainless Steel

• Corrosion Resistance • Fire And Heat Resistance
• Hygiene • Aesthetic Appearance
• Strength-To-Weight Advantage • Impact Resistance
• Lower Total Life Cycle Cost • 100%Recyclable

Tolerance Chart for SS Round Bars as per ISO

Size Range (mm) h8 h9 h10 h11 h12 h13 K12/K13
Upto 6 -0.018 -0.030 -0.048 -0.075 -0.120 -0.180 -
Over 6 upto 10 -0.022 -0.036 -0.058 -0.090 -0.150 -0.220 -
Over 10 upto 18 -0.027 -0.043 -0.070 -0.110 -0.180 -0.270 -
Over 18 upto 30 -0.033 -0.052 -0.084 -0.130 -0.210 -0.330 +0.10/+0.15
Over 30 upto 50 -0.039 -0.062 -0.100 -0.160 -0.250 -0.390 +0.15/+0.20
Over 50 upto 80 -0.046 -0.074 -0.120 -0.190 -0.300 -0.460 +0.20/+0.25
Over 80 upto 120 -0.054 -0.087 -0.140 -0.220 -0.350 -0.540 +0.25/+0.30

Tolerance Chart For SS Round Bars as per ASTM A 484

Cold Finished Round Bars

Size Range in Inch Tolerance
1/16” to less than 5/16” +/- 0.001”
5/16” to less than 1/2” +/- 0.0015”
1/2” to less than 1” +/- 0.002”
1” to less than 1-1/2” +/- 0.0025”
1-1/2” to less than 4” +/- 0.003”

Cold Finished Hexagon & Square Bars

Size Range in Inch
Tolerance
1/16” to less than 5/16”
+/- 0.002”
5/16” to less than 1/2”
+/- 0.003”
1/2” to less than 1”
+/- 0.004”
1” to less than 2”
+/- 0.006”
2” to less than 3”
+/- 0.008”
3" and over
+/- 0.010”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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