ASTM A333 Grade 6 Pipe belongs to the specification of A333 which is a set of pipes that are intended for low temperature services. The specification covers alloy steel, welded and seamless pipes from carbon steel as well.

ASTM A333 Grade 6 Pipes
SA333 Pipe A333 Gr 6 Material

There are different grades that are manufactured from different grades of raw material. Hi-tech Metal & Tubes is a leading supplier, stockiest and distributor of A333 pipes. Our A333 Seamless Pipes is used in a host of applications with low temperature such as marine applications, paper and pulp, ship building and in refineries as well. The LTCS ASTM A333 Gr 6 material comprises of iron, carbon and phosphorous, sulfur and manganese in the composition. The specific quantities of the composition give the products the great mechanical properties. Our A333 Pipes Material is of high wear and tear resistant, it is stronger, has high yield strength and certain level of corrosion resistance. We supply the A333 products to industries such as power plants, boilers, heat exchangers and condensers for their low temperature operation components. These products don’t require filler material while welding. Therefore the SA333 Pipes can be welded with ease onto any piping system. Please contact us with any of your inquiries for any information.


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ASTM A333 Grade 6 Pipes can be manufactured using a few distinctive methods, each of which produces a pipe with certain characteristics. These characteristics incorporate quality, corrosion resistance, wall thickness, temperature and weight limitations.


ASTM A333 Grade 6 Pipe standard specifications

Specifications of ASTM A333 Grade 6 Pipe ASTM A333 ASME SA333
LTCS ASTM A333 Gr 6 Dimensions ASTM, ASME and API
SA333 Pipes Size 1/2 inch NB to 36 inch NB
ASTM A333 Grade 6 Thickness 3 to 12 MM
A333 Gr 6 Material Schedules Schedules 40, 80, 160, XS, XXS
A333 Seamless Pipes Length Minimum 3 M, maximum 18 M, or according to customer’s requirement

Weight Chart of LTCS ASTM A333 Gr 6 Pipe

Nominal bore Size Outside Diameter 40S 5S 10S S10 S20 S40 S60 XS/80S S80 S100 S120 S140 S160 XXS
1/8 10.29 1.2 1.73 2.41
1/4 13.72 1.7 2.24 3.02
3/8 17.15 1.7 2.31 3.2
20 3/4 26.67 2.9 1.7 2.1 2.87 3.91 3.91 5.56 7.82
25 1 33.4 3.4 1.7 2.8 3.38 4.55 4.55 6.35 9.09
15 1/2 21.34 2.8 1.7 2.1 2.77 3.73 3.73 4.78 7.47
32 1 1/4 42.16 3.6 1.7 2.8 3.56 4.85 4.85 6.35 9.7
40 1 1/2 48.26 3.7 1.7 2.8 3.68 5.08 5.08 7.14 10.2
50 2 60.33 3.9 1.7 2.8 3.91 5.54 5.54 9.74 11.1
65 2 1/2 73.03 5.2 2.1 3.1 5.16 7.01 7.01 9.53 14
80 3 88.9 5.5 2.1 3.1 5.49 7.62 7.62 11.1 15.2
100 4 114.3 6 2.1 3.1 6.02 8.56 8.56 11.1 13.5 17.1
125 5 141.3 6.6 2.8 3.4 6.55 9.53 9.53 12.7 15.9 19.1
150 6 168.3 7.1 2.8 3.4 7.11 10.97 11 14.3 18.3 22
90 3 1/2 101.6 5.7 2.1 3.1 5.74 8.08 8.08
200 8 219.1 8.2 2.8 3.8 6.4 8.18 10.3 12.7 12.7 15.1 19.3 20.6 23 22.2
250 10 273.1 9.3 3.4 4.2 6.4 9.27 12.7 12.7 15.1 19.3 21.4 25.4 28.6 25.4
350 14 355.6 9.5 4 4.8 6.4 7.9 11.1 15.1 12.7 19.1 23.8 27.8 31.8 35.7
400 16 406.4 9.5 4.2 4.8 6.4 7.9 12.7 16.7 12.7 21.4 26.2 31 36.5 40.5
300 12 323.9 9.5 4 4.6 6.4 10.3 14.3 12.7 17.5 21.4 25.4 28.6 33.3 25.4
450 18 457.2 9.5 4.2 4.8 6.4 7.9 14.3 19.1 12.7 23.8 29.4 34.9 39.7 45.2
550 22 558.8 9.5 4.8 5.5 6.4 9.5 22.2 12.7 28.6 34.9 41.3 47.6 54
600 24 609.6 9.5 5.5 6.4 6.4 9.5 17.5 24.6 12.7 31 38.9 46 52.4 59.5
650 26 660.4 9.5 7.9 13 12.7
500 20 508 9.5 4.8 5.5 6.4 9.5 15.1 20.6 12.7 26.2 32.5 38.1 44.5 50
800 32 812.8 9.5 7.9 13 17.5 12.7
700 28 711.2 9.5 7.9 13 12.7
850 34 863.6 9.5 7.9 13 17.5 12.7
900 36 914.4 9.5 7.9 13 19.1 12.7
750 30 762 9.5 6.4 7.9 7.9 13 12.7

Chemical Formula of SA333 Pipe

A333 Gr.6
C Mn P S Si Ni
0.3 0.29-1.06 0.025 0.025 ≥0.10

A333 Seamless Pipe of Mechanical Behaviour

Grade High Yield strength Tensile strength Elongation (%)
A333 Gr.6
35 000 (240) 60 000 (415) 30 min

A333 Grade 6 Pipe Stockhouse

ASTM A333 gr 6 pipe
  • A333 Grade 6 Pipes
  • A333 Seamless Pipes
  • LTCS ASTM A333 Gr 6
  • SA333 Pipes
  • ASTM A333 Pipes
SA 333 Pipe
  • ASTM A333 Grade 6 Pipes
  • SA 333 Gr 6 Material
  • A333 Grade 6 Seamless Pipes
  • ASTM A333 Grade 6
  • SA333 Gr 6 Material