ASTM A334 Grade 1 Seamless Tube is falls under the ASTM A334 / ASME SA334 specification, which is specifically for low-temperature service. The outer diameter of these ferritic carbon steel tubes varies from ¼” to 2”, and the wall thickness is 1mm to 8mm, made by hot rolling or cold drawing. The lengths range from 5800mm up to 27000mm; custom lengths are available upon request. It contains carbon, manganese, silicon, phosphorus, and sulfur, which guarantee its good mechanical properties in severe environments. It is a type of Carbon Steel Pipes & Tubes and equipped with NACE MR0103 and NACE MR0175 certification and HIC testing, these tubes are used in architectural, construction, agricultural and corrosive service industries. USA Piping Solution is a reliable supplier of ASTM A334 Grade 1 Seamless Tubes with certified high-quality products that are designed to meet the needs of your project.
Specification table of ASTM A334 Grade 1 Seamless Tube
| Feature | Detail |
|---|---|
| Standard | ASTM A334 / ASME SA334 |
| Grade | Grade 1 (Low Temperature Carbon Steel) |
| Type | Seamless / Welded |
| Outer Dimensions (OD) | 6 mm – 1020 mm |
| Supplier Size Range | 4" NB to 26" NB |
| Wall Thickness | 2.0 mm – 14 mm |
| Schedules | SCH 20, 30, 40, STD, XH, 80, 100, 120, 140, 160, XXH & heavier |
| Lengths | 5800 mm, 6000 mm, 6096 mm, 7315 mm, 11800 mm, and custom lengths |
ASME SA 334 CS Grade 1 Pipe Seamless Tube
|
Property |
Requirement |
|---|---|
|
Tensile Strength |
≥ 380 MPa |
|
Yield Strength |
≥ 205 MPa |
|
Elongation |
≥ 35% |
|
Hardness |
≤ 163 HB (Brinell) |
Types of ASTM A334 Grade 1 Seamless Tube
ASTM A334 Grade 1 Seamless Tube Size Chart
| NB Size (Inches) | Sch 5 | Sch 10 | Sch 40 | Sch 80 | Sch 160 |
|---|---|---|---|---|---|
| 1/2 | ✓ | ✓ | ✓ | ✓ | — |
| 3/4 | ✓ | ✓ | ✓ | ✓ | — |
| 1 | ✓ | ✓ | ✓ | ✓ | — |
| 1.25 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 1.5 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 2 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 2.5 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3.5 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 4 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 5 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 6 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 8 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 10 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 12 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 14 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 16 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 18 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 20 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 22 | ✓ | ✓ | ✓ | ✓ | — |
| 24 | ✓ | ✓ | ✓ | ✓ | — |
Pressure Rating Chart of ASTM A334 Grade 1 Seamless Tube
| NPS (Inch) | DN (mm) | Outside Diameter (mm) | Wall Thickness (mm) | Weight (kg/m) | Weight (lb/ft) | Test Pressure (psi) | Test Pressure (kPa) |
|---|---|---|---|---|---|---|---|
| 3/4 | 20 | 26.7 | 2.11 | 1.28 | 0.86 | 700 | 4830 |
| 1 | 25 | 33.4 | 2.77 | 2.09 | 1.41 | 700 | 4830 |
| 1 1/4 | 32 | 42.2 | 2.77 | 2.69 | 1.81 | 1000 | 6890 |
| 1 1/2 | 40 | 48.3 | 2.77 | 3.11 | 2.09 | 1000 | 6890 |
| 2 | 50 | 60.3 | 2.77 | 3.93 | 2.64 | 1000 | 6890 |
| 2 1/2 | 65 | 73.0 | 3.05 | 5.26 | 3.53 | 1000 | 6890 |
| 3 | 80 | 88.9 | 3.05 | 6.46 | 4.34 | 1000 | 6890 |
| 3 1/2 | 90 | 101.6 | 3.05 | 7.41 | 4.98 | 1200 | 8270 |
| 4 | 100 | 114.3 | 3.05 | 8.37 | 5.62 | 1200 | 8270 |
| 5 | 125 | 141.3 | 3.40 | 11.58 | 7.78 | 1200 | 8270 |
| 6 | 150 | 168.3 | 3.40 | 13.85 | 9.30 | 1000 | 6890 |
| 8 | 200 | 219.1 | 4.78 | 25.26 | 16.96 | 800 | 5520 |
Difference between ASTM A334 Grade 1 vs Grade 6 (ASTM A334)
| Property | Grade 1 | Grade 6 | Key Difference |
|---|---|---|---|
| Yield Strength (min) | 207 MPa (30 ksi) | 241 MPa (35 ksi) | Grade 6 is 16% stronger. |
| Tensile Strength (min) | 380 MPa (55 ksi) | 415 MPa (60 ksi) | Grade 6 offers higher UTS. |
| Manganese (Mn) Range | 0.40–1.06% | 0.29–1.06% | Both have a very similar range. |
| A106 Equivalent | Similar to A106 Grade A | Similar to A106 Grade B | Match Grade 6 with A106 Gr B for consistency. |
| Industry Preference | Less common (niche) | Most popular LTCS grade | Grade 6 dominates global procurement. |
| Impact Test Temp | -50°F (-45°C) | -50°F (-45°C) | Both serve the same temperature floor. |
Application & Industrial Usage of ASTM A334 Grade 1 Seamless Tube
- Oil & Gas Industry
- Petrochemical Industry
- Chemical Processing Plants
- Power Generation Plants
- Thermal Power Stations
- Thermal Power Stations
- Boiler Manufacturing Industry
- Heat Exchanger Industry
- Refineries
- LNG & Cryogenic Processing Plants
- Construction & Infrastructure Industry
ASTM A334 Grade 1 Seamless Tube Price List
| Product | Price Range (USD) | Unit |
|---|---|---|
| ASTM A334 Grade 1 CS Pipes | 295 - 700 | per Ton |
| ASTM A334 Gr 1 Cold Drawn Seamless Steel Tube | 750 - 1200 | per Metric Ton |
| A334 Gr.1 Low Temperature Seamless Pipe | 490 - 980 | per Ton |
Note: Please be advised that these prices are indicative and may fluctuate according to global market conditions, raw material costs, and order specifications.
Other Grades of ASTM Pipes & Tubes
- ASTM A691 Grade 91 (9Cr-1Mo-V) EFW Pipe
- ASTM A691 Grade 22 (2¼Cr-1Mo) EFW Pipe
- ASTM A691 Grade 11 (1¼Cr-½Mo) EFW Pipe
- ASTM A691 Grade 5 (5Cr-½Mo) EFW Pipe
- ASTM A691 Grade 9 (9Cr-1Mo) EFW Pipe
- ASTM A519 4130 Seamless Tube
- ASTM A519 4140 Seamless Tube
- ASTM A519 8620 Seamless Tube
- ASTM A192 / ASME SA192 tubes
- ASTM A333 Grade 1 Pipe
- ASTM A334 Grade 6 Seamless Tube
Frequently Asked Questions
What is ASTM A334?
ASTM A334 is a standard specification for seamless and welded carbon and alloy steel pipes designed for low-temperature service applications.
What material is SA 334 GR 1?
SA 334 Grade 1 is a low-temperature carbon steel material used for seamless and welded pipes in cold service conditions.
Is ASTM A234 WPB seamless or ERW?
ASTM A234 WPB fittings can be manufactured from seamless, ERW, or welded pipes depending on the application and production method.
What is the difference between ASTM A334 Grade 1 and Grade 6?
Grade 6 contains nickel, which gives it better toughness and impact resistance at lower temperatures compared to Grade 1.
Is ASTM A334 Grade 1 suitable for low-temperature applications?
Yes, ASTM A334 Grade 1 is specifically designed for low-temperature applications and performs well in cold service environments.