Low Temperature steel pipe
The ASTM A333 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 alloy steel pipe 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 – ASME SA333 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 PIPEGRADE | 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 A333 Gr.1, ASTM A333 Gr.3 and, ASTM A333 Grade 6:
| 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
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 | ||||
| 13CrMo4-5 | 1.7335 | – | – | A/ SA335 P11 | A/ SA691 1 1/4CR |
| EN10216-2 | EN10217-5 | ||||
| 10CrMo9-10 | 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 | ||||
