ASTM A334 Low Temperature Pipe

1.Specifications:ASTM A 334, ASME SA 334
2.Size Range:4"NB to 26"NB
3.Wall Thickness:2.0mm-14 mm
4.Schedules:20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
5.Type:Seamless / Welded/ Low Temperature
6.Length:5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on.
7.Outer Dimensions:6mm-1020mm
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Product Details

ASTM A334 Low Temperature Pipe is suitable for seamless steel tubes used in pressure vessels at -45℃~-195℃ and heat exchangers at Low Temperature.The steel tube has strong structure, corrosion resistance, high quality and other excellent properties.

Specifications:ASTM A 334, ASME SA 334

Size Range:4” NB to 26” NB

Wall Thickness:2.0mm-14 mm

Schedules:20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier

Type:Seamless / Welded/ Low Temperature

Length:5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on.

Outer Dimensions:6mm-1020mm

ASME SA / ASTM A334 Low Temperature Pipe Chemical Composition :

C, %

Mn, %

Si, %

P, %

S, %

0.30 max

0.29-1.06

0.10 min

0.025 max

0.025 max

A334 Grade 6 Seamless Pipes and Tubes Mechanical properties:

Tensile Strength , MPa

Yield Strength, MPa

Elongation, %

Hardness, HB

415 min

240 min

30 min

190 max

Chemical Requirements For ASTM A334 Grade 6 Seamless Tubes

Grade

Mfg. Process

Chemical composition(%)

C

Si

Mn

P

S

Ni

Cr

Mo

Others

Grade 1

S, E, AT

0.30Max

-

0.40~1.06

0.05Max

0.60Max

-

-

-

(STBL450)

Grade 3

S, E, AT

0.19Max

0.18~0.37

0.31~0.64

0.05Max

0.050Max

3.18-3.82

-

-

-

Grade 6

S, E, AT

0.30Max

0.10Max

0.29~1.06

0.048Max

0.058Max

-

-

-

-

Grade 7

S, E, AT

0.19Max

0.13~0.32

0.90Max

0.04Max

0.050Max

2.03~2.57

-

-

(STBL690)

Grade 8

S, E, AT

0.18Max

0.13~0.32

0.90Max

0.045Max

0.045Max

8.40~9.60

-

-

(Cu 0.75~1.25)

Grade 9

S, E, AT

0.20Max

-

0.40~1.06

0.045Max

0.50Max

1.60~2.24

-

-

-

 Tensile Requirements For ASTM A334 Grade 6 Seamless Tubes

Grade

Tensile Test MPa or N/mm2

Remaks
(Similar to JIS)

Min Yield point

Tensile Strength

Gr. 1

205

380Min

Impact Test(J)
2V 18

Gr. 3

240

450Min

2V 18

Gr. 6

240

415Min

2V 18

Gr. 7

240

450Min

2V 18

Gr. 8

520

690Min

2V 18

Gr. 9

315

435Min

2V 18

ASTM A334 Low Temperature Pipe refers to Low alloy steel used in special Low Temperature environment. It is a special steel rapidly developed to meet the needs of petroleum, chemical industry and other industries.Low temperature steel has excellent low temperature toughness, good processing performance and corrosion resistance, and has been widely used in petrochemical, natural gas and other industrial sectors.

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