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StandardASTM A554- Standard Specification for Welded Stainless Steel Mechanical Tubing 

EN10296-2- Welded circular steel tubes for mechanical and general engineering purposes — Technical delivery conditions —Part 2: Stainless steel

Grades: 201,202,304,304L,316L,409,430,439







Chemical Requirements

Grade

Composition, %
C Mn P
S
Si
Ni Cr Mo

Max


Max
Max
Max



Austenitic
201 0.15 8.0-12.0 0.06 0.03 1.00
1.0-2.5
13.0-15.0
202 0.15 7.5-10.0 0.06 0.03
1.00
3.0-5.0
15.0-17.0
301

0.15

2.0max 0.04 0.03
1.00
5.0-7.0
15.0-17.0
304 0.08 2.0max
0.04
0.03
1.00
8.0-11.0
18.0-20.0
304L 0.035 2.0max
0.04
0.03
1.00
8.0-13.0
18.0-20.0
316 0.08 2.0max
0.04
0.03
1.00
10.0-14.0
16.0-18.0 2.0-3.0
316L 0.035 2.0max
0.04
0.03
1.00
10.0-15.0
16.0-18.0 2.0-3.0
321 0.08 2.0max
0.04
0.03
1.00
9.0-13.0
17.0-20.0
Ferritic
430 0.12 1.00 0.04 0.03 1 0.5max 16.0-18.0


Mechanical Properties

Grade Tensile Requirements

Hardness 

Requirements

Tensile Strength, min Yield Strength, min

Elongation in 2 in. 

or (50mm), min

Brinell, 

max

Rockwell, 

max

ksi Mpa ksi Mpa %

430 60 414 35 241 20 190 90
430Ti 60 414 30 207 20 190 90
304L&316L 70 483 25 172 35 192 90
All other austenitic
75 517 30 207 35 192 90


Tolerances

ASTM A554 Wall Thickness/Outside Dimention Tolerances
Wall Thickness Tolerances
± 10% of specified wall thickness
 Round Tubing Outside Dimention Tolerances
OD Size, in.(mm)
Wall Thickness
OD,±
mm
mm
mm
Under ½ (12.7)
0.51-1.24 0.10
12.7-25.4
0.51-1.65 0.13
12.7-25.4
over 1.65-3.40 0.25
Over 25.4-38.1, incl
0.64-1.65 0.20
Over 25.4-38.1, incl
over 1.65-3.40 0.25
Over 38.1-50.8, incl
0.64-1.24 0.25
Over 38.1-50.8, incl
over 1.24-2.11 0.28
Over 38.1-50.8, incl
over 2.11-3.78 0.30
Over 50.8-63.5, incl
0.81-1.65 0.30
Over 50.8-63.5, incl
over 1.65-2.77 0.33
Over 50.8-63.5, incl
over 2.77-4.19 0.36
Over 63.5-88.9, incl
0.81-4.19 0.36
Over 63.5-88.9, incl
over 4.19 0.51
Over 88.9-127.0, incl
0.89-4.19 0.51
Over 88.9-127.0, incl
over 4.19 0.64
Over 127.0-190.5, incl
1.24-6.35 0.64
Over 127.0-190.5, incl
over 6.35 0.76
Over 190.5-406.4, incl
all
Square & Rectangular Outside Dimention Tolerances
Largest Specified OD Across Flats, in.(mm)
Wall Thickness
across flats, Convexity or Concavity, ±
mm mm
mm
To 1 ¼ (31.8), incl
all
0.38
Over 1 ¼ to 2 ½ (31.8-63.5), incl
all
0.51
Over 2 ½ to 5 ½ (63.5-139.7), incl
all
0.76
Over 5 ½  to 8 (139.7-203.2), incl
all
1.52
Square & Rectangular Outside Dimention Tolerances
Wall Thickness, in.(mm)
Radii of Corners, max
mm mm
Over 0.020-0.049 (0.51-1.24), incl
2.4
Over 0.049-0.065 (1.24-1.65), incl
3.2
Over 0.065-0.083 (1.65-2.11), incl
3.6
Over 0.083-0.095 (2.11-2.42), incl
4.8
Over 0.095-0.109 (2.42-2.77), incl
5.2
Over 0.109-0.134 (2.77-3.40), incl
5.6
Over 0.134-0.156 (3.40-3.96), incl
6.4
Over 0.156-0.200 (3.96-5.08), incl
9.5
Over 0.200-0.250 (5.08-6.35), incl
12.7
Over 0.250-0.375 (6.35-9.53), incl
19.1
Square & Rectangular Twist Tolerances
Largest Size, in.(mm)
Twist in 3 ft (1m), max
mm
mm
Under  ½ (12.7)
1.4
 ½ to 1 ½ (12.7-38.1), incl
2.1
Over 1 ½ -2 ½ (38.1-63.5), incl
2.6
Over 2 ½ - 4 (63.5-101.6), incl
3.5
Over 4 - 6 (101.6-152.4), incl
6.9
Over 6 (152.4)
10.4


 Slot Tube Size List

Drawing
OD Slot Drawing
OD Slot
d/a*b*c
w*h
d/a*b*c
w*h

φ25.4
14*14
25*21 14*14
φ28
5*5
31.8*31.8 15*15
φ31.8
13*15 32*32 15*5
φ31.8
18.5*15 38*25 20*15
φ38.1
15*15 38*38 15*15
φ38.1
23.5*13 40*40 15*15
φ38.1
19*13 40*40 20*20
φ42.4
19.7*26.2 40*60 15*15
φ42.4
15*15 50*50 20*20
φ42.4
20*15 50*50 15*15
φ42.4
24*24 50*25 25*15
φ48.3
24*24 50*25 15*15
φ48.3
19.7*31.8 60*40 15*15
φ48.3
27*30 60*40 24*24
φ48.3
30*27 60*60 25*25
φ50.8
13.8*15 75*45 20*25
φ50.8
15*15 75*45 25*25
φ50.8
19.7*31.8 75*45 35*28
φ50.8
19*38 70*30 42*6
φ50.8
20*20 71*26 15*12
φ50.8
20*25
100*30 34*19
φ50.8
25*25 60*40 20*20
φ50.8
28*21 87*65 24*28
φ60
25*25 80*40 33*26
φ60
25*40 80*40 24*24
φ60.3
20*20 93*57 25*25
φ60.3
34*34 100*52 45*40
φ63
15*15 110*40 33*26
φ63
20*20
100*68
42*27
φ63
23*34
φ63
25*25
φ63
19*38
φ76
25*25
φ76
38*45
φ90
57*35
103*68
25.3*13

φ50.8
15*15
φ76
25*25

85*40

25*13

25*20


60*20

30*5

7*7

40*40 15*15

120*33*74 15*12

82.7*20*35*36*23

140*50
36*20


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