Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Delivery Time | 7days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Specification | ASTM A333, ASME SA333 |
| Material | Grade 6 |
| O.D. | 0.75" TO 6" (19.05mm TO 154.2mm) |
| W.T. | 0.06" TO 1" (1.5MM TO 25.4MM) |
| Length | Single Random, Double Random & Cut Length |
| End | Plain Ends / Beveled Ends |
| Process | Cold Drawn, Hot Finished |
| Test | ET/HT |
| Application | Boiler, Heat Exchanger, Condenser |
| High Light | ASTM A333 Gr.6 Carbon Steel Seamless Tube, Low-temperature Tube |
| Brand Name | YUHONG |
| Model Number | ASTM A333 Gr.6 Carbon Steel Seamless Tube |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008. |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 7days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Specification | ASTM A333, ASME SA333 |
| Material | Grade 6 | O.D. | 0.75" TO 6" (19.05mm TO 154.2mm) |
| W.T. | 0.06" TO 1" (1.5MM TO 25.4MM) | Length | Single Random, Double Random & Cut Length |
| End | Plain Ends / Beveled Ends | Process | Cold Drawn, Hot Finished |
| Test | ET/HT | Application | Boiler, Heat Exchanger, Condenser |
| High Light | ASTM A333 Gr.6 Carbon Steel Seamless Tube, Low-temperature Tube | Brand Name | YUHONG |
| Model Number | ASTM A333 Gr.6 Carbon Steel Seamless Tube | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008. |
| Place of Origin | CHINA | ||
| High Light | ASTM A333 Gr. 6 carbon steel pipe ，seamless tube for low temperature ，alloy steel pipe with warranty | ||
ASTM A333 Gr.6 Carbon Steel Seamless Tube for Low-temperature Service
Comparison with Other Low-Temperature Carbon Steels (Within A333/A334)
| Material Standard | Grade | Key Difference vs. A333 Gr.6 | Typical Lowest Temp | Primary Use Case vs. Gr.6 |
|---|---|---|---|---|
| ASTM A333 | Gr.6 (Seamless) | Baseline for comparison. Normalized C-Mn steel for -45°C service. | -45°C (-50°F) | The standard choice for seamless low-temp process piping. |
| ASTM A333 | Gr.1 (Welded) | Similar chemistry, but supplied as welded pipe. Often cheaper. | -46°C (-50°F) | Used where seamless is not mandated by code; for lower pressure/less critical service. |
| ASTM A333 | Gr.3 | Nickel-alloyed (3.5% Ni). More expensive but allows service down to -100°C. | -100°C (-150°F) | Used when temperatures exceed the capability of Gr.6. |
| ASTM A333 | Gr.8 | 9% Nickel steel. Austenitic structure at cryogenic temps. | -195°C (-320°F) | For deep cryogenics (LNG, liquid nitrogen/oxygen). Far more expensive. |
| ASTM A334 | Gr.6 (Tubing) | Identical material spec to A333 Gr.6, but covers seamless and welded TUBING (smaller OD, tighter tolerances). | -45°C (-50°F) | Used for instrument lines, heat exchanger tubes, and small-bore tubing applications. |
*Takeaway: Within the low-temperature carbon steel family, A333 Gr.6 is the workhorse for the -45°C range. Choose a higher grade (Gr.3, Gr.8) for lower temperatures, and consider Gr.1 (welded) or A334 (tubing) for different product forms.
ASTM A333 Gr.6 Carbon Steel Seamless Tube Equivalent Grades
| DIN | EN | BS | NFA | ASME |
|---|---|---|---|---|
| DIN 17178 FGP 28 | EN P215NL 10216-4 | NFA A 36-2051) A 42 AP | ASTM A333 Gr.6 | ASME SA333 Gr. 6 |
ASTM A333 Gr.6 Carbon Steel Seamless Tube Chemical Properties
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| max 0.30 | min 0.10 | 0.29 – 1.06 | 0.025 | 0.025 | – | – | – | – | – |
ASTM A333 Gr.6 Carbon Steel Seamless Tube Mechanical Properties
| Yield Strength | Tensile Strength | Elongation A5 min | |||
|---|---|---|---|---|---|
| MPa min | ksi min | MPa min | MPa min | ksi min | Percentage |
| 240 | - | 415 | – | 60 | 30 |
*Impact Toughness (Charpy V-Notch) Requirements:
Test Temperature: -50°F (-45°C).
Minimum Average Energy: 13 ft-lbf (18 J) for a set of three specimens.
Minimum Single Value: 10 ft-lbf (14 J).
Specimen Size: Standard full-size (10mm x 10mm). If sub-sized specimens must be used due to thin walls, the required energy values are proportionally reduced.
Testing & Inspection Requirements (Typical for Seamless)
Hydrostatic Test: Every length of pipe must be tested to a specified pressure without leakage.
Non-Destructive Electric Test (NDE): Seamless pipe is typically subjected to an eddy current test or ultrasonic test to detect major longitudinal imperfections.
Flattening Test, Flange Test, or Reverse Bend Test: One of these is performed on seamless pipe to check ductility.
Chemical Analysis: Check of ladle or product analysis.
Tension Test: To verify mechanical properties.
Impact Test (CVN): Mandatory for A333 Gr.6. Tests are performed on heats of steel and often by lot.
Applications
A333 Gr.6 seamless tubes are used in critical low-temperature process piping and equipment:
Liquefied Natural Gas (LNG) facilities
Cryogenic processing plants
Refrigeration systems
Cold storage piping
Skid-mounted process units for oil & gas in cold climates
Ammonia and ethylene transport lines
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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