Low Temperature steel pipe

The specification covers seamless and welded carbon steel pipes for low-temperature service (down to -150 degrees F). Specific nominal pipe size/schedule foreseen by the ASME B36.10 specification are not manufactured in A333 as higher wall thicknesses have a negative effect on the impact properties of the pipe at very low temperatures.

Sizes

  • 1/4” Nominal to 42”O.D.
  • Wall Thickness – Schedule 10 through XXH
  • Lengths required shall be specified on order. If no definite lengths required, following practice applies: Single Random — 17′ ~ 24′ lengths Double Random — 36′ ~ 44′ lengths

Low Temperature Steel Pipe Specifications & Grades

  • SA333 & A333 – Grades 1, 3, 6 & 8
  • GB/T 18984
  • A671 CC65 CL22 EFW at -50°F (Welded Alternative to A333)

Flanges & Fittings

  • Flanges – A/SA 350 LF2, LF3
  • A/SA-420 WPL6, WPL3

A/SA-333 Grades allow for cold temperature service to minus 150°F. A/SA-333 specification covers wall seamless and welded carbon and intended for use at low temperatures. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

CHEMICAL COMPOSITION ASTM A333 – PIPE

Low-temperature carbon steel pipes ASTM A333 are available in multiple grades designated as 1, 3, 4, 6, 7, 8, 9, 10, & 11:

ASTM A333 PIPE GRADE C Si Mn P S Cr Ni Cu Mo V Al
Gr. 1 <=0.30 0.40-1.06 <=0.025 <=0.025
Gr. 3 <=0.19 0.18-0.37 0.31-0.64 <=0.025 <=0.025 3.18-3.82
Gr. 4 <=0.12 0.18-0.37 0.50-1.05 <=0.025 <=0.025 0.44-1.01 0.47-0.98 0.40-0.75 0.04-0.30
Gr. 6 <=0.30 ≥0.10 0.29-1.06 <=0.025 <=0.025
Gr. 7 <=0.19 0.13-0.32 <=0.90 <=0.025 <=0.025 2.03-2.57
Gr. 8 <=0.13 0.13-0.32 <=0.90 <=0.025 <=0.025 8.40-9.60
Gr. 9 <=0.20 0.40-1.06 <=0.025 <=0.025 1.60-2.24 0.75-1.25
Gr. 10 <=0.20 0.10-0.35 1.15-1.50 <=0.03 <=0.015 <=0.15 <=0.25 <=0.015 <=0.50 <=0.12 <=0.06
Gr. 11 <=0.10 <=0.35 <=0.6 <=0.025 <=0.025 <=0.50 35.0-37.0 <=0.50
MECHANICAL PROPERTIES ASTM A333 PIPE

The table shows the mechanical properties of the three most common ASTM A333 grades, i.e. ASTM , ASTM A333 Gr.3 and, :

Gr. 1 Gr. 3 Gr. 6
Tensile Strength 55,000 65,000 60,000
(min PSI)
Yield Strength 30,000 35,000 35,000
(min PSI)

TESTING REQUIREMENTS ASTM A333 PIPE

IMPACT TEST

Low-temperature carbon steel pipes are supplied in normalized conditions and the Charpy impact test is always executed at specific temperatures to ensure the compliance of the products to the temperature range set by the standard. The minimum impact test temperatures by grade are shown in the table below

A333 Material Grade F C
ASTM A333 Grade Grade 1 -50° -45°
ASTM A333 Grade Grade 3 -150° -100°
ASTM A333 Grade 6 -50° -45°
MECHANICAL TESTS

The mechanical testing on low-temperature carbon steel pipes shall be executed as follows:

  • transverse/longitudinal tension/flattening/hardness/bend: tests to be made on 5% of the pipe from each treated lot. For smaller lots, at least one pipe has to be tested. For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipes.
  • Hydrostatic/ impact/one notched bar impact: shall be made from each heat represented in a heat-treatment load on specimens taken from the finished pipe.
Required Markings on Each Length

(On Tags attached to each Bundle in case of Bundled Pipe) Markings will adhere to prescribed specifications in A 999/A999M and be: Rolled, Stamped, or Stenciled (Mfrs. Option) In addition, markings will include:

Hot Finished or Cold Drawn Manufacture Name
Specification / Grade Hydro or NDE
Seamless or Welded
Schedule Number
the letters “LT” followed by the temperature at which the impact tests were made * and **
the letters “QT” when the pipe is furnished in the quenched and tempered condition

* except when a lower test temperature is required because of reduced specimen size, in which case, the higher impact test temperature applicable to a full size specimen would be marked ** when the size of the finished pipe is insufficient to obtain subsize impact specimens, the marking shall not include the letters “LT” followed by an indicated test temperature unless Supplementary Requirement S! is specified.


Referenced Documents
  • ASTM A 370 Test Methods and Definitions for Mechanical testing of Steel Products
  • ASTM A999/A 999M Specification for General requirements for Alloy and Stainless Steel Pipe
  • ASTM A 671 Specification for General requirements for Alloy and Stainless Steel Pipe
  • ASTM E 23 Test Methods for Notched bar Impact testing of Metallic Materials

Order Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity Feet, centimeters, or number of lengths
Name of material Seamless or Welded Pipe
Grade Grade 1, Grade 3, Grade 6 or Grade 8
Size NPS or Outside Diameter and Schedule Number of Average Wall Thickness
Length Specific or Random
End Finish
Optional Requirements
Heat Analysis Requirement
Stress Relieving
Repair by Welding
Other Temperatures for Impact Test
Hydrostatic Test or Nondestructive Electric Test
Test Report Required
Specification Designation and
Special Requirements or Exceptions to this Specification
Production specification range of low temperature pipe products
No.
Order No.
Size description
Standard
O.D.
/mm
W.T.
/mm
Legnth
/m
1
A333 Gr.6/X42NS
10~127
1~20
6~12.0
ASTM A333
Pipe grades permit low temperature service.
42~114.3
3.5~6
6~12.2
42~114.3
6~12
6~12.2
114.3~180
3.8~8
6~12.2
114.3~180
8~22
6~12.2
68~180
10~14
6~12.2
69~254
14~55
6~12.2
140~340
6~8
6~12.2
140~368
8~42
6~12.2
318~720
14~50
4~12.5
2
A333 Gr.6/X52QS
42~114.3
3.5~12
6~12.2
114.3~180
3.8~22
6~12.2
68~254
10~40
6~12.2
140~368
6~40
6~12.2
318~720
14~40
4~12.5
140~368
6~25
6~12.2
318~720
14~25
4~12.5
3
10~127
1~20
6~12.0
GB/T 18984
42~114.3
3.5~12
6~12.2
114.3~180
3.8~22
6~12.2
68~254
10~55
6~12.2
140~368
6~42
6~12.2
318~720
14~120
4~12.5
Line Pipe Variety Table
API 5L Line Pipe Low-temperature Line Pipe
PSL1 PSL2 ASTM A333/A333M
General condition of service Offshore service Sour service
A/L210 Gr.1
B/L245 BR/L245R

BN/L245N

BQ/L245Q

BNO/L245NO

BQO/L245QO

BNS/L245NS

BQS/L245QS

Gr.6
X42/L290 X42R/L290R

X42N/L290N

X42Q/L290Q

X42NO/L290NO

X42QO/L290QO

X42NS/L290NS

X42QS/L290QS

X46/L320 X46R/L320R

X46N/L320N

X46Q/L320Q

X46NO/L320NO

X46QO/L320QO

X46NS/L320NS

X46QS/L320QS

X52/L360 X52N/L360N

X52Q/L360Q

X52NO/L360NO

X52QO/L360QO

X52NS/L360NS

X52QS/L360QS

X56/L390 X56N/L390N

X56Q/L390Q

X56NO/L390NO X56NS/L390NS
X60/L415 X60N/L415N

X60Q/L415Q

X60QO/L415QO X60QS/L415QS
X65/L450 X65Q/L450Q X65QO/L450QO X65QS/L450QS Gr.10
X70/L485 X70Q/L485Q X70QO/L485QO X70QS/L485QS

Grade and Size Range of Treading Line Pipe
Grade PSL OD mm

(in)

WT mm

(in)

Standards
L175P/A25P PSL1 21.3~508.0

(1/2’’-20’’)

2.77~50.01

(Sch 40-160)

API 5B 15th

API 5L 44th

Or technical specification

L245/B

X42/L290

X52/L360

X56/L390

X60/L415

X65/L450

X70/L485

 Carbon steel for water distribution for temperature 0° – 100°C

 EN – DIN  WNr  AISI/ Tradename  ASTM – UNS  Pipe
seamless
 Pipe
welded
 P235TR1   1.0254  –  –  A/ SA53B  A/ SA53B
 EN10216-1  EN10217-1
Carbon steel for temperature -20° – 400°C for pressure application
 EN – DIN  WNr  AISI/ Tradename  ASTM – UNS  Pipe
seamless
 Pipe
welded
 P235GH   1.0345  –  –  A/ SA106 Gr B/ A  A/ SA672 B65
 EN10216-2  EN10217-2/ -5
 P265GH  1.0425  –  –  A/ SA106 Gr C/ A  A/ SA672 BB70
 EN10216-2  EN10217-2/ -5
 P355N/ NH  1.0562/ 1.0565  –  –  API 5L X52  API 5L X52
 EN10216-3  EN10217-3
 P460N/ NH  1.8905/ 1.8935  –  –  API 5L X65  API 5L X65
 EN10216-3  EN10217-3
Low Alloy steel and Alloy Steel for temperature 0° to 650°C for pressure application
 EN – DIN  WNr  AISI/ Tradename  ASTM – UNS  Pipe
seamless
 Pipe
welded
 16Mo3  1.5415  –  –  A/ SA335 P1  A/ SA691 1CR
 EN10216-2  EN10217-5
 X11CrMo5-1  1.7362  –  –  A/ SA335 P5  A/ SA691 5CR
 EN10216-2  EN10217-5
 X11CrMo9-1  1.7386  –  –  A/ SA335 P9  A/ SA691 9CR
 EN10216-2  EN10217-5
   1.7335  –  –  A/ SA335 P11  A/ SA691 1 1/4CR
 EN10216-2  EN10217-5
   1.7380  –  –  A/ SA335 P22  A/ SA691 2 1/4CR
 EN10216-2  EN10217-5
 X10CrMoVNb9-1  1.4903  –  –  A/ SA335 P91  A/ SA691 91CR
 EN10216-2  EN10217-5
 X10CrWMoVNb9-2  1.4901  –  –  A/ SA335 P92  A/ SA691 92CR
 EN10216-2  EN10217-5
Low temperature carbon steel for pressure purpose and low temp up to -50°C
 EN – DIN  WNr  AISI/ Tradename  ASTM – UNS  Pipe
seamless
 Pipe
welded
 P215NL  1.0451  –  –  A/ SA333 Gr1/ Gr6  A/ SA671CC60/70
 EN10216-4  EN10217-4
 P255QL  1.0452  –  –  A/ SA333 Gr1/ Gr6  A/ SA671CC60/70
 EN10216-4  EN10217-4
 P265NL  1.0453  –  –  A/ SA333 Gr1/ Gr6  A/ SA671CC60/70
 EN10216-4  EN10217-4
 P355NL1/ NL2  1.0566  –  –  A/ SA333 Gr6  A/ SA671CC60/70
A/ SA333 Gr6
 EN10216-3  EN10217-3
Low temperature Nickel Steel for pressure purpose and low temp up to -196°C

 EN – DIN  WNr  AISI/ Tradename  ASTM – UNS  Pipe
seamless
 Pipe
welded
 X10Ni9/ X8Ni9  1.5682/ 1.5662  –  –  A/ SA333 Gr. 8  A/ SA671C100/ CH100
 EN10216-4  EN10217-4
 12Ni14  1.5637  –  –  A/ SA333 Gr3  A/ SA671CF66
 EN10216-4  EN10217-4