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Low Temperature Seamless Steel Pipe (LTCS)–Premium Solutions for Cold Environments
Our Low Temperature Seamless Steel Pipes are specifically engineered to maintain superior impact toughness and structural integrity in sub-zero environments. Designed for applications where the process fluid or ambient temperature drops significantly, these pipes ensure safety and reliability under extreme thermal stress.
Common Standards and Steel Grades
We supply low-temperature pipes manufactured in strict accordance with international standards to meet the rigorous demands of the energy and chemical sectors:
ASTM A333: The standard specification for seamless and welded steel pipe for low-temperature service.
Grades: Grade 1, Grade 3, Grade 6 (most common), Grade 7, Grade 8, Grade 9.
ASME SA333: Parallel standards for pressure vessel and boiler construction.
ASTM A334: Seamless and welded carbon and alloy-steel tubes for low-temperature service.
EN 10216-4: European standard for seamless steel tubes for pressure purposes (e.g., P215NL, P265NL).
Dimensions and Size Range
Our production line covers a comprehensive range of sizes to fit diverse project requirements:
Feature Specification Range
Outer Diameter (OD): 1/4”to 36”(13.7mm–914.4mm)
Wall Thickness (WT): SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS (up to 60mm)
Length: Single Random (5-7m), Double Random (10-12m), or Fixed Lengths
Ends: Plain End, Beveled End, Threaded & Coupled
Key Applications
These pipes are essential components in industries where "brittle fracture" must be prevented at low temperatures:
Oil & Gas: Arctic exploration, offshore drilling platforms, and low-temperature pipeline construction.
LNG Industry: Liquefied Natural Gas terminals, storage tanks, and transport piping.
Petrochemical: Ethylene plants, refrigeration units, and cryogenic processing facilities.
Power Generation: Specialized piping for low-temp compressed air and fluid handling.
Why Choose Our Low-Temp Pipes?
Impact Tested: Every batch undergoes Charpy V-Notch impact testing at temperatures as low as -45°C (for Grade 6) or -195°C (for Grade 8).
Precision Manufacturing: Advanced heat treatment (Normalizing or Quenching & Tempering) to ensure uniform grain structure.
Full Traceability: Supplied with MTC (Material Test Certificate) according to EN 10204 3.1 or 3.2.
ASTM A333 Grade Series Chemical composition
| Element | Grade 1 | Grade 6 (Most Popular) | Grade 3 | Grade 7 | Grade 9 |
| Carbon (max) | 0.3 | 0.3 | 0.19 | 0.19 | 0.2 |
| Manganese | 0.40–1.06 | 0.29–1.06 | 0.31–0.64 | 0.90 max | 0.40–1.06 |
| Phosphorus (max) | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Sulfur (max) | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Silicon | ... | 0.10 min | 0.18–0.37 | 0.13–0.32 | ... |
| Nickel | ... | ... | 3.18–3.82 | 2.03–2.49 | 1.60–2.24 |
| Copper | ... | ... | ... | ... | 0.75–1.25 |
ASTM A333 Pipe Dimension Tolerance
| Nominal Pipe Size (NPS) | OD Tolerance (Over) | OD Tolerance (Under) | Wall Thickness (WT) Tolerance | Length Tolerance | ||
| Single Random (SRL) | Double Random (DRL) | Fixed Length | ||||
| 1/8" to 1-1/2" | +0.4 mm (1/64") | -0.8 mm (1/32") | -12.5% (Min. Wall) | ± 500mm | ± 500mm | +6mm / -0mm |
| Over 1-1/2" to 4" | +0.8 mm (1/32") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
| Over 4" to 8" | +1.6 mm (1/16") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
| Over 8" to 18" | +2.4 mm (3/32") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
| Over 18" to 36" | +3.2 mm (1/8") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
ASTM A333 Grade Series Mechanical Properties Sheet
| Grade | Tensile Strength (min) | Yield Strength (min) | Impact Test Temp. | Min. Avg. Impact (3 Spec) |
| Grade 1 | 380 MPa (55 ksi) | 205 MPa (30 ksi) | -45°C (-50°F) | 18 Joules (13 ft-lb) |
| Grade 3 | 450 MPa (65 ksi) | 240 MPa (35 ksi) | -100°C (-150°F) | 18 Joules (13 ft-lb) |
| Grade 6 | 415 MPa (60 ksi) | 240 MPa (35 ksi) | -45°C (-50°F) | 18 Joules (13 ft-lb) |
| Grade 7 | 450 MPa (65 ksi) | 240 MPa (35 ksi) | -75°C (-100°F) | 18 Joules (13 ft-lb) |
| Grade 8 | 690 MPa (100 ksi) | 515 MPa (75 ksi) | -195°C (-320°F) | 27 Joules (20 ft-lb) |
| Grade 9 | 435 MPa (63 ksi) | 315 MPa (46 ksi) | -75°C (-100°F) | 27 Joules (20 ft-lb) |
SPECIFICATION STANDARD (STEEL PIPE)
| Normal Diameter | OD(MM) | WALL THICKMESS(MM) | |||||||||||||||||
| ANSI B36.10M | ANSI B36.19M | ||||||||||||||||||
| A(MM) | B(INCH) | ASME | SCH5/5S | SCH10S | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH40S | SCH60 | XS | SCH80 | SCH80S | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
| 15 | 1/2" | 21.34 | 1.65 | 2.11 | 2.11 | 2.41 | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 | 3.73 | 4.78 | 7.47 | |||||
| 20 | 3/4" | 26.67 | 1.65 | 2.11 | 2.11 | 2.41 | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 | 3.91 | 5.56 | 7.82 | |||||
| 25 | 1" | 33.40 | 1.65 | 2.77 | 2.77 | 2.9 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 4.55 | 6.35 | 9.09 | |||||
| 32 | 1.1/4" | 42.16 | 1.65 | 2.77 | 2.77 | 2.97 | 3.56 | 3.56 | 3.56 | 4.85 | 4.85 | 4.85 | 6.35 | 9.7 | |||||
| 40 | 1.1/2" | 48.26 | 1.65 | 2.77 | 2.77 | 3.18 | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 | 5.08 | 7.14 | 10.15 | |||||
| 50 | 2" | 60.32 | 1.65 | 2.77 | 2.77 | 3.18 | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 | 5.54 | 8.74 | 11.07 | |||||
| 65 | 2.1/2" | 73.02 | 2.11 | 3.05 | 3.05 | 4.78 | 5.16 | 5.16 | 5.16 | 7.01 | 7.01 | 7.01 | 9.53 | 14.02 | |||||
| 80 | 3" | 88.90 | 2.11 | 3.05 | 3.05 | 4.78 | 5.49 | 5.49 | 5.49 | 7.62 | 7.62 | 7.62 | 11.13 | 15.25 | |||||
| 90 | 3.1/2" | 101.60 | 2.11 | 3.05 | 3.05 | 4.78 | 5.74 | 5.74 | 5.74 | 8.08 | 8.08 | 8.08 | |||||||
| 100 | 4" | 114.30 | 2.11 | 3.05 | 3.05 | 4.78 | 6.02 | 6.02 | 6.02 | 8.56 | 8.56 | 8.56 | 11.13 | 13.49 | 17.12 | ||||
| 125 | 5" | 141.30 | 2.77 | 3.40 | 3.40 | 6.55 | 6.55 | 6.55 | 9.53 | 9.53 | 9.53 | 12.7 | 15.88 | 19.05 | |||||
| 150 | 6" | 168.28 | 2.77 | 3.40 | 3.40 | 7.11 | 7.11 | 7.11 | 10.97 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | |||||
| 200 | 8" | 219.08 | 2.77 | 3.76 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 250 | 10" | 273.05 | 3.40 | 4.19 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 12.7 | 18.26 | 21.44 | 25.4 | 28.58 | 25.4 |
| 300 | 12" | 323.85 | 3.96 | 4.57 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 9.53 | 14.27 | 12.7 | 17.48 | 12.7 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 |
| 350 | 14" | 355.60 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 9.53 | 15.09 | 12.7 | 19.05 | 12.7 | 23.83 | 27.79 | 31.75 | 35.71 | |
| 400 | 16" | 406.40 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 9.53 | 16.66 | 12.7 | 21.44 | 12.7 | 26.19 | 30.96 | 36.53 | 40.49 | |
| 450 | 18" | 457.20 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 9.53 | 19.05 | 12.7 | 23.83 | 12.7 | 29.36 | 34.93 | 39.67 | 45.24 | |
| 500 | 20" | 508.00 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 9.53 | 20.62 | 12.7 | 26.19 | 12.7 | 32.54 | 38.1 | 44.45 | 50.01 | |
| 550 | 22" | 558.80 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 22.23 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | ||||
| 600 | 24" | 609.60 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 9.53 | 24.61 | 12.7 | 30.96 | 12.7 | 38.89 | 46.02 | 52.37 | 59.54 | |
| 650 | 26" | 660.40 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||||||
| 700 | 28" | 711.20 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||||||
| 750 | 30" | 762.00 | 6.35 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | |||||||||||
| 800 | 32" | 812.00 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||||||
| 850 | 34" | 863.60 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||||||
| 900 | 36" | 914.40 | 7.92 | 12.7 | 15.88 | 9.53 | 19.05 | 12.7 | |||||||||||
Low Temperature Seamless Steel Pipe Production Process
We specialize in high-performance grades such as ASTM A333 Grade 6, which are specifically designed for structural integrity in extreme low-temperature environments.
Quality is our priority; every batch undergoes rigorous Charpy V-Notch Impact Testing to ensure the steel maintains superior toughness and resistance to brittle fracture under cold conditions.
Yes, our production strictly follows global standards such as ASTM A333, and we provide a Mill Test Certificate (MTC) according to EN 10204 3.1 detailing all chemical and mechanical properties.
We use professional sea-worthy packaging, including anti-rust oil coating, plastic pipe-end protectors, and waterproof wrapping to ensure your order arrives in perfect condition, free from corrosion or physical damage.
ASTM A333 Grade Series Chemical composition
| Element | Grade 1 | Grade 6 (Most Popular) | Grade 3 | Grade 7 | Grade 9 |
| Carbon (max) | 0.3 | 0.3 | 0.19 | 0.19 | 0.2 |
| Manganese | 0.40–1.06 | 0.29–1.06 | 0.31–0.64 | 0.90 max | 0.40–1.06 |
| Phosphorus (max) | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Sulfur (max) | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Silicon | ... | 0.10 min | 0.18–0.37 | 0.13–0.32 | ... |
| Nickel | ... | ... | 3.18–3.82 | 2.03–2.49 | 1.60–2.24 |
| Copper | ... | ... | ... | ... | 0.75–1.25 |
ASTM A333 Pipe Dimension Tolerance
| Nominal Pipe Size (NPS) | OD Tolerance (Over) | OD Tolerance (Under) | Wall Thickness (WT) Tolerance | Length Tolerance | ||
| Single Random (SRL) | Double Random (DRL) | Fixed Length | ||||
| 1/8" to 1-1/2" | +0.4 mm (1/64") | -0.8 mm (1/32") | -12.5% (Min. Wall) | ± 500mm | ± 500mm | +6mm / -0mm |
| Over 1-1/2" to 4" | +0.8 mm (1/32") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
| Over 4" to 8" | +1.6 mm (1/16") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
| Over 8" to 18" | +2.4 mm (3/32") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
| Over 18" to 36" | +3.2 mm (1/8") | -0.8 mm (1/32") | -12.5% (Min. Wall) | |||
ASTM A333 Grade Series Mechanical Properties Sheet
| Grade | Tensile Strength (min) | Yield Strength (min) | Impact Test Temp. | Min. Avg. Impact (3 Spec) |
| Grade 1 | 380 MPa (55 ksi) | 205 MPa (30 ksi) | -45°C (-50°F) | 18 Joules (13 ft-lb) |
| Grade 3 | 450 MPa (65 ksi) | 240 MPa (35 ksi) | -100°C (-150°F) | 18 Joules (13 ft-lb) |
| Grade 6 | 415 MPa (60 ksi) | 240 MPa (35 ksi) | -45°C (-50°F) | 18 Joules (13 ft-lb) |
| Grade 7 | 450 MPa (65 ksi) | 240 MPa (35 ksi) | -75°C (-100°F) | 18 Joules (13 ft-lb) |
| Grade 8 | 690 MPa (100 ksi) | 515 MPa (75 ksi) | -195°C (-320°F) | 27 Joules (20 ft-lb) |
| Grade 9 | 435 MPa (63 ksi) | 315 MPa (46 ksi) | -75°C (-100°F) | 27 Joules (20 ft-lb) |
SPECIFICATION STANDARD (STEEL PIPE)
| Normal Diameter | OD(MM) | WALL THICKMESS(MM) | |||||||||||||||||
| ANSI B36.10M | ANSI B36.19M | ||||||||||||||||||
| A(MM) | B(INCH) | ASME | SCH5/5S | SCH10S | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH40S | SCH60 | XS | SCH80 | SCH80S | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
| 15 | 1/2" | 21.34 | 1.65 | 2.11 | 2.11 | 2.41 | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 | 3.73 | 4.78 | 7.47 | |||||
| 20 | 3/4" | 26.67 | 1.65 | 2.11 | 2.11 | 2.41 | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 | 3.91 | 5.56 | 7.82 | |||||
| 25 | 1" | 33.40 | 1.65 | 2.77 | 2.77 | 2.9 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 4.55 | 6.35 | 9.09 | |||||
| 32 | 1.1/4" | 42.16 | 1.65 | 2.77 | 2.77 | 2.97 | 3.56 | 3.56 | 3.56 | 4.85 | 4.85 | 4.85 | 6.35 | 9.7 | |||||
| 40 | 1.1/2" | 48.26 | 1.65 | 2.77 | 2.77 | 3.18 | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 | 5.08 | 7.14 | 10.15 | |||||
| 50 | 2" | 60.32 | 1.65 | 2.77 | 2.77 | 3.18 | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 | 5.54 | 8.74 | 11.07 | |||||
| 65 | 2.1/2" | 73.02 | 2.11 | 3.05 | 3.05 | 4.78 | 5.16 | 5.16 | 5.16 | 7.01 | 7.01 | 7.01 | 9.53 | 14.02 | |||||
| 80 | 3" | 88.90 | 2.11 | 3.05 | 3.05 | 4.78 | 5.49 | 5.49 | 5.49 | 7.62 | 7.62 | 7.62 | 11.13 | 15.25 | |||||
| 90 | 3.1/2" | 101.60 | 2.11 | 3.05 | 3.05 | 4.78 | 5.74 | 5.74 | 5.74 | 8.08 | 8.08 | 8.08 | |||||||
| 100 | 4" | 114.30 | 2.11 | 3.05 | 3.05 | 4.78 | 6.02 | 6.02 | 6.02 | 8.56 | 8.56 | 8.56 | 11.13 | 13.49 | 17.12 | ||||
| 125 | 5" | 141.30 | 2.77 | 3.40 | 3.40 | 6.55 | 6.55 | 6.55 | 9.53 | 9.53 | 9.53 | 12.7 | 15.88 | 19.05 | |||||
| 150 | 6" | 168.28 | 2.77 | 3.40 | 3.40 | 7.11 | 7.11 | 7.11 | 10.97 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | |||||
| 200 | 8" | 219.08 | 2.77 | 3.76 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 250 | 10" | 273.05 | 3.40 | 4.19 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 12.7 | 18.26 | 21.44 | 25.4 | 28.58 | 25.4 |
| 300 | 12" | 323.85 | 3.96 | 4.57 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 9.53 | 14.27 | 12.7 | 17.48 | 12.7 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 |
| 350 | 14" | 355.60 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 9.53 | 15.09 | 12.7 | 19.05 | 12.7 | 23.83 | 27.79 | 31.75 | 35.71 | |
| 400 | 16" | 406.40 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 9.53 | 16.66 | 12.7 | 21.44 | 12.7 | 26.19 | 30.96 | 36.53 | 40.49 | |
| 450 | 18" | 457.20 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 9.53 | 19.05 | 12.7 | 23.83 | 12.7 | 29.36 | 34.93 | 39.67 | 45.24 | |
| 500 | 20" | 508.00 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 9.53 | 20.62 | 12.7 | 26.19 | 12.7 | 32.54 | 38.1 | 44.45 | 50.01 | |
| 550 | 22" | 558.80 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 9.53 | 22.23 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | ||||
| 600 | 24" | 609.60 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 9.53 | 24.61 | 12.7 | 30.96 | 12.7 | 38.89 | 46.02 | 52.37 | 59.54 | |
| 650 | 26" | 660.40 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||||||
| 700 | 28" | 711.20 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||||||
| 750 | 30" | 762.00 | 6.35 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | |||||||||||
| 800 | 32" | 812.00 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||||||
| 850 | 34" | 863.60 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||||||
| 900 | 36" | 914.40 | 7.92 | 12.7 | 15.88 | 9.53 | 19.05 | 12.7 | |||||||||||
Low Temperature Seamless Steel Pipe Production Process
We specialize in high-performance grades such as ASTM A333 Grade 6, which are specifically designed for structural integrity in extreme low-temperature environments.
Quality is our priority; every batch undergoes rigorous Charpy V-Notch Impact Testing to ensure the steel maintains superior toughness and resistance to brittle fracture under cold conditions.
Yes, our production strictly follows global standards such as ASTM A333, and we provide a Mill Test Certificate (MTC) according to EN 10204 3.1 detailing all chemical and mechanical properties.
We use professional sea-worthy packaging, including anti-rust oil coating, plastic pipe-end protectors, and waterproof wrapping to ensure your order arrives in perfect condition, free from corrosion or physical damage.
