Product Size & Specification
| Parameter Category | Specific Specifications |
| Product Name | Low Temperature Resistant ASTM A333 Gr 6 Seamless Steel Pipe for Cryogenic Equipment |
| Product Standard | ASTM A333 Grade 6, ASME B36.10M, fully compliant with American low-temperature pressure pipeline standards |
| Product Type | Hot Rolled Seamless Carbon Steel Pipe (Low Temperature Resistant) |
| Outer Diameter (OD) | 1/2" (21.3mm) ~ 36" (914.4mm), customized sizes available |
| Wall Thickness (WT) | SCH 10S / SCH 40 / SCH 80 / SCH 160 / XXS, thickness range 2.11mm ~ 60mm |
| Length | 6m / 12m fixed length, random length, customized cutting length |
| Pipe End Treatment | Plain end, beveled end, threaded end (customizable per customer demand) |
| Surface Treatment | Black painting, anti-rust oil, varnish coating, customized surface protection |
| Tolerance Standard | Strict ASTM standard tolerance, OD tolerance ±0.5%, wall thickness tolerance ±10% |
Chemical Composition
| Chemical Element | Content (%) | Function Description |
| Carbon (C) | ≤0.30 | Ensure basic strength and weldability of steel pipe |
| Manganese (Mn) | 0.80–1.20 | Improve steel toughness and low-temperature impact resistance |
| Phosphorus (P) | ≤0.035 | Strict control to avoid low-temperature brittleness |
| Sulfur (S) | ≤0.040 | Reduce impurity content, ensure cryogenic stability |
| Silicon (Si) | 0.15–0.35 | Optimize steel microstructure, enhance corrosion resistance |
Mechanical Performance
| Performance Item | Standard Data | Industry Advantage |
| Tensile Strength | 415–585 MPa | High structural strength, not easy to deform under high pressure |
| Yield Strength | ≥240 MPa | Stable bearing capacity for long-term industrial operation |
| Elongation | ≥30% | Good ductility, resistant to bending and impact damage |
| Minimum Service Temperature | -45°C (-50°F) | Professional cryogenic grade, no brittle fracture at ultra-low temperature |
| Low Temperature Impact Test | Qualified Charpy V-notch impact test at -45°C | Strict cryogenic toughness certification, safe for extreme cold environments |
| Pressure Resistance | Match SCH standard pressure grade | Suitable for high-pressure cryogenic pipeline transmission |
Production Process & Quality Testing
| Process & Testing Link | Detailed Process |
| Production Technology | Hot piercing → cold rolling & cold drawing → precision sizing → heat treatment → finishing → inspection |
| Heat Treatment | Normalized heat treatment, eliminate internal stress, optimize low-temperature toughness |
| Strict Testing Items | Chemical composition analysis, mechanical property test, low-temperature impact test, hydraulic pressure test, ultrasonic nondestructive testing, dimensional tolerance inspection |
| Quality Certification | ISO9001 quality system certified, fully compliant with ASTM & ASME international standards, third-party inspection acceptable |
Wide Application Fields
| Application Industry | Specific Usage Scenarios |
| Cryogenic Equipment Industry | Cryogenic storage tanks, cryogenic heat exchangers, low-temperature pressure vessel supporting pipelines |
| Oil & Gas Industry | LNG natural gas transmission pipelines, low-temperature oil and gas gathering and transportation pipelines, polar oilfield equipment pipelines |
| Petrochemical & Chemical Industry | Low-temperature chemical medium transmission, cryogenic reaction kettle connecting pipes, chemical refrigeration system pipelines |
| Power Industry | Power plant low-temperature cooling systems, thermal power cryogenic auxiliary equipment pipelines |
| Industrial Refrigeration | Large industrial refrigeration equipment, low-temperature cold storage pipeline systems |
Advantages
| Advantage Dimension | Detailed Description |
| Ultra-Low Temperature Resistance | Stable mechanical performance at -45°C low temperature, no brittle failure, far superior to ordinary carbon steel pipes in cold environment service life |
| High Purity & Uniform Texture | Precision smelting process, low impurity content, uniform steel structure, excellent pressure and impact resistance |
| Excellent Weldability & Machinability | Matches supporting fittings (ASTM A420 WPL6 fittings, ASTM A350 LF2 flanges), convenient for on-site cutting, welding and installation |
| Long Service Life | Anti-oxidation and anti-corrosion performance, resistant to low-temperature medium erosion, service life up to 15+ years in conventional cryogenic working conditions |
| Full Customization | Support size, surface, length, packaging customization, meet diversified engineering and equipment matching needs |
Trade & Service Terms
| Trade Item | Service Details |
| MOQ | 1 Ton, small batch trial order acceptable |
| Price Term | FOB, CIF, CFR, EXW, DDP optional |
| Payment Term | T/T, L/C at sight, flexible payment for long-term cooperation |
| Delivery Time | Standard stock goods 3-7 days, customized products 10-20 working days |
| Packaging | Standard seaworthy export packaging (steel bundle + waterproof wrapping + wooden pallet), anti-rust and anti-damage for long-distance shipping |
| After-Sales Service | 24/7 online technical support, product quality problem replacement & refund, professional installation guidance |
| Support Documents | Provide factory certificate, material test report (MTR), inspection report, bill of lading, commercial invoice and other full set of export documents |
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Address: Chenda Road,Daqiuzhuang Town Jinghai County,Tianjin,China.
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