Low Temperature Carbon Steel Pipe Description
- Size : 1/2″ – 24″
- Standard : ASTM, ASME and API
- Schedule : SCH 40 – SCH 160/XXS
- Specifications : ASTM A333 / ASME SA333
LTCS Material for Low Temperature and Welded Pressure Vessels
- Applications: Oil and Gas Industry
- Power Generation Industry
- Offshore Drilling Platforms
- Storage Tanks
- Aerospace Industry
- Chemical Processing Industry
Table of contents
- LTCS Pipe Full Form
- Low Temperature CS Pipe Piping Component
- LTCS Pipe Weight Chart
- Thickness Chart of Low Carbon Steel Pipe
- Low Temperature Service Pipe Welding Procedure
- Types of Low Temperature Carbon Steel Pipe
- LTCS Material Composition
- LTCS Seamless Pipe Applications
- Low Temp Pipe Mechanical Properties
- Advantages of Low Temperature Carbon Tubes
- LTCS ERW Pipes Testing Methods
- Low Carbon Steel Tube Coatings
- Low Temperature Carbon Steel ASTM Code
- LTCS Material Grade
- Low Temp Steel Pipe Size Description
- Disadvantages of Low Temp Carbon Steel Pipe
- LTCS EFW Tube Marking
- Low Temp Heat Exchanger Tubes Certification
- Delivery Condition of Hot Rolled Low Carbon Steel
- LTCS Stands for Low Temperature Carbon Steel pipe.
LTCS Pipe with ASTM A999 Ultrasonic Testing
- Hydrostatic testing
- Ultrasonic testing
- Radiographic testing
- Leak testing
- Magnetic particle testing
- Visual inspection
- Geometric accuracy
- Dimensional Inspection
- Non-Destructive Testing
- Mechanical Testing
- Bend Testing
- Chemical Composition Testing
Check Low Temp Carbon Steel Pipe Equivalent Grades and European Standard
- ASTM A333 Grade 6
- X6CrNiMoTi17-12-2 (1.4571)
Refer Low Temperature Carbon Steel Pipe Temperature Limit
| ASTM A333 Grade | C° | F° |
|---|---|---|
| Gr 10 | -60 | -75 |
| Gr 9 Low Temp Pipe | -75 | -100 |
| Gr 8 | -195 | -320 |
| Gr 7 Carbon Steel Pipe | -75 | -100 |
| Gr 6 | -45 | -50 |
| Gr 4 Carbon Pipe | -100 | -150 |
| Gr 3 | -100 | -150 |
| Gr 1Seamless Pipes | -45 | -50 |
Suitable Nut Bolt, Flanges and Pipe Elbow for Low Temperature Carbon Steel Pipes
Low Temperature CS Pipe Piping Component

| Material | Pipes | Forged Steel Fittings | Buttweld Fittings | Bolts and Nuts | Valves |
|---|---|---|---|---|---|
| Low Temp Carbon Steel | A333 GR6 | ASTM A350 LF2 | A420 WPL6 | A320 Gr L7 /A194 Gr 7 | A352 LCB |
| OD | Size | ID | WT | Weight/ft |
|---|---|---|---|---|
| 1.315 | 1 | 1.049 | 0.133 | 1.68 |
| 1.05 | 3/4 | 0.824 | 0.113 | 1.13 |
| 1.66 | 1 1/4 | 1.380 | 0.140 | 2.27 |
| 2.375 | 2 | 2.157 | 0.109 | 2.64 |
| 1.90 | 1 1/2 | 1.610 | 0.145 | 2.72 |
| 0.84 | 1/2 | 0.622 | 0.109 | 0.85 |
| 2.875 | 2 1/2 | 2.635 | 0.120 | 3.53 |
| 4.0 | 3 1/2 | 3.760 | 0.120 | 4.98 |
| 3.50 | 3 | 3.260 | 0.120 | 4.34 |
| 4.5 | 4 | 4.260 | 0.120 | 5.62 |
| 6.625 | 6 | 6.407 | 0.109 | 7.59 |
| 5.563 | 5 | 5.187 | 0.188 | 10.80 |
Thickness Chart of Low Carbon Steel Pipe
| NPS | OD | Thickness (mm) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| in. | mm | in. | 160 | 140 | 100 | 80 | 60 | 40 | 20 | 10 |
| 1/2 | 21.34 | .840 | 4.78 | 3.73 | 2.78 | 2.11 | ||||
| 1/8 | 1 .29 | .405 | 2.41 | 1.73 | 1.23 | |||||
| 3/8 | 17.15 | .675 | 3.2 | 2.31 | 1.65 | |||||
| 1 | 33.40 | 1.315 | 6.36 | 4.55 | 3.38 | 2.78 | ||||
| 2 | 6 .33 | 2.375 | 8.74 | 5.54 | 3.91 | 2.78 | ||||
| 1 1/2 | 48.26 | 1.900 | 7.14 | 5.08 | 3.68 | 2.78 | ||||
| 3 | 88.90 | 3.500 | 11.13 | 7.62 | 5.49 | 3.04 | ||||
| 6 | 168.28 | 6.625 | 18.25 | 1 .97 | 7.11 | 3.4 | ||||
| 4 | 114.30 | 4.500 | 13.49 | 8.55 | 6.02 | 3.04 | ||||
| 10 | 273.04 | 1 .750 | 28.58 | 25.4 | 18.25 | 15.08 | 12.7 | 9.27 | 6.36 | 4.19 |
| 18 | 457.20 | 18 | 45.24 | 39.67 | 29.36 | 23.88 | 19.05 | 14.27 | 7.92 | 6.36 |
| 14 | 355.60 | 14 | 35.71 | 31.75 | 23.83 | 19.05 | 15.08 | 11.13 | 7.92 | 6.36 |
| 22 | 558.80 | 22 | 53.98 | 47.63 | 34.93 | 28.58 | 22.23 | 9.53 | 6.36 | |
| 30 | 762 | 30 | 12.7 | 6.36 | ||||||
| 26 | 660 | 26 | 12.7 | 6.36 | ||||||
| 34 | 863.60 | 34 | 17.48 | 12.7 | 6.36 | |||||
Low Temperature Service Pipe Welding Procedure
- Material Selection
- Surface Cleaning
- Preheating
- Welding Process
- GTAW
- GMAW
- SMAW
- Filler Material
- E7016
- ER70S-6
- E7018
- Design Joint
- PWHT – Post Weld Heat Treatment
- Inspection
- Post Weld Cleaning

Types of Low Temperature Carbon Steel Pipe
LTCS Seamless Pipe
Low Temp. Heat Exchanger Pipe
Low Temperature Service Pipe
Low Temperature Steel Pipe
Low Temp LSAW Pipe
Low Carbon Steel Hot Finished Pipe
LTCS EFW Pipe
LTCS Carbon ERW Pipe
LTCS SSAW Pipes
LTCS Round Pipe
Low Temperature Steel Clad Pipe
Low Temperature Steel Cold Drawn Pipe
| Grade | Si | C | Mn | S | P | Cr | Cu | Ni | Mo | Al | V |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11 | ≤0.35 | ≤0.10 | ≤0.6 | ≤0.025 | ≤0.025 | ≤0.50 | 35.0-37.0 | ≤0.50 | |||
| 10 | 0.10-0.35 | ≤0.20 | 1.15-1.50 | ≤0.015 | ≤0.03 | ≤0.15 | ≤0.015 | ≤0.25 | ≤0.50 | ≤0.06 | ≤0.12 |
| 9 | ≤0.20 | 0.40-1.06 | ≤0.025 | ≤0.025 | 0.75-1.25 | 1.60-2.24 | |||||
| 8 | 0.13-0.32 | ≤0.13 | ≤0.90 | ≤0.025 | ≤0.025 | 8.40-9.60 | |||||
| 7 | 0.13-0.32 | ≤0.19 | ≤0.90 | ≤0.025 | ≤0.025 | 2.03-2.57 | |||||
| 6 | ≥0.10 | ≤0.30 | 0.29-1.06 | ≤0.025 | ≤0.025 | ||||||
| 4 | 0.18-0.37 | ≤0.12 | 0.50-1.05 | ≤0.025 | ≤0.025 | 0.44-1.01 | 0.40-0.75 | 0.47-0.98 | 0.04-0.30 | ||
| 3 | 0.18-0.37 | ≤0.19 | 0.31-0.64 | ≤0.025 | ≤0.025 | 3.18-3.82 | |||||
| 1 | ≤0.30 | 0.40-1.06 | ≤0.025 | ≤0.025 |
LTCS Seamless Pipe Applications
- Chemical Industry
- Oil and Gas Pipeline
- Food Processing Industry
- Heating
- Power Plant
- Paper and Pulp Industry
- Fabrication Industry

Low Temp Pipe Mechanical Properties
| Grade | Yield Point (MPa) | Tensile Strength (MPa) | Elongation (%) | |
|---|---|---|---|---|
| X | Y | |||
| 11 | ≥240 | ≥450 | – | ≥18 |
| 10 | ≥450 | ≥550 | – | ≥22 |
| 9 | ≥315 | ≥435 | – | ≥28 |
| 8 | ≥515 | ≥690 | – | ≥22 |
| 7 | ≥240 | ≥450 | ≥22 | ≥30 |
| 6 | ≥240 | ≥415 | ≥16.5 | ≥30 |
| 4 | ≥240 | ≥415 | ≥16.5 | ≥30 |
| 3 | ≥240 | ≥450 | ≥20 | ≥30 |
| 1 | ≥205 | ≥380 | ≥25 | ≥35 |
Advantages of Low Temperature Carbon Tubes

- Improved Impact Resistance
- Increase Toughness
- Low Cost
- High Durability
- High Strength
- High Pressure and Temperature
- Corrosion Resistance
- Weld Annealing
LTCS ERW Pipes Testing Methods
- Hydrostatic testing
- Ultrasonic testing
- Radiographic testing
- Leak testing
- Magnetic particle testing
- Visual inspection
- Geometric accuracy
- Dimensional Inspection
- Non-Destructive Testing
- Mechanical Testing
- Bend Testing
- Chemical Composition Testing

Low Carbon Steel Tube Coatings
- Bituminous Coatings
- Ceramic Coatings
- Polypropylene Coatings
- Fusion-Bonded Epoxy Coatings
- Soild CRA
- Black painting
- Epoxy Coatings
- Polyethylene Coatings
- Varnished
- Zinc
Low Temperature Carbon Steel ASTM Code
- 73079390
- Grade 1
- Grade 3
- Grade 6
Low Temp Steel Pipe Size Description
| OD (mm) | WT (mm) | Length (m) |
|---|---|---|
| 42 – 114.3 | 3.5 – 12 | 6 – 12.2 |
| 10 – 127 | 1 – 20 | 6 – 12.0 |
| 114.3 – 180 | 3.8 – 22 | 6 – 12.2 |
| 140 – 368 | 6 – 42 | 6 – 12.2 |
| 68 – 254 | 10 – 55 | 6 – 12.2 |
| 318 – 720 | 14 – 120 | 4 – 12.5 |
| 42 – 114.3 | 3.5 – 6 | 6 – 12.2 |
| 10 – 127 | 1 – 20 | 6 – 12.0 |
| 42 – 114.3 | 6 – 12 | 6 – 12.2 |
| 114.3 – 180 | 8 – 22 | 6 – 12.2 |
| 114.3 – 180 | 3.8 – 8 | 6 – 12.2 |
| 68 – 180 | 10 – 14 | 6 – 12.2 |
| 140 – 340 | 6 – 8 | 6 – 12.2 |
| 69 – 254 | 14 – 55 | 6 – 12.2 |
| 140 – 368 | 8 – 42 | 6 – 12.2 |
| 42 – 114.3 | 3.5 – 12 | 6 – 12.2 |
| 318 – 720 | 14 – 50 | 4 – 12.5 |
| 114.3 – 180 | 3.8 – 22 | 6 – 12.2 |
| 140 – 368 | 6 – 40 | 6 – 12.2 |
| 68 – 254 | 10 – 40 | 6 – 12.2 |
| 318 – 720 | 14 – 40 | 4 – 12.5 |
| 318 – 720 | 14 – 25 | 4 – 12.5 |
| 140 – 368 | 6 – 25 | 6 – 12.2 |
Disadvantages of Low Temp Carbon Steel Pipe
- Low Strength
- Increased brittleness
- Difficult to Weld
- Corrosion Issues
- Reduced Ductility

Low Temp Heat Exchanger Tubes Certification
- MTC EN 10204 3.1/3.2
- Heat treatment charts
- Charpy Impact V-Notch Test
- Raw materials certificate
- Third party inspection report
- NACE
Delivery Condition of Hot Rolled Low Carbon Steel
| Condition | Symbol |
|---|---|
| Normalized | NBK |
| Cold-finished/soft | BKW |
| Cold-finished/hard | BK |
| Annealed | GBK |