Welcome to Changzhou Tenjan Steel Tube Co., Ltd
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ASTM A192 seamless steel tubes represent the industry standard for high-pressure boiler applications in power generation and industrial settings. These carbon steel seamless tubes are specifically engineered for water wall panels, superheater sections, and economizer tubes in high-pressure boiler systems. As a fundamental material compliant with ASME Section I regulations, ASTM A192 boiler tubes deliver exceptional performance in high-temperature high-pressure service, combining reliable pressure-bearing capability with optimized heat transfer efficiency for critical thermal energy applications.
Material Specifications & Standard Scope
As a specialized ASTM A192 standard tube, this product falls under the comprehensive requirements of ASTM A450/A450M for carbon steel boiler and superheater tubes. The standard specifies the manufacture of seamless cold-drawn or hot-rolled tubes with precise dimensional control for high-pressure applications.
Key Scope of ASTM A192:
• Material grade: Carbon steel with controlled chemistry for high-temperature stability
• Outside diameter range: 0.5 inch (12.7 mm) to 4.0 inches (100 mm)
• Wall thickness: 0.083 inches (2.11 mm) to 0.5 inches (12.7 mm)
• Manufacturing process: Seamless process only, with subsequent cold-drawing or hot-rolling
Technical Requirements & Chemical Composition
ASTM A192 high-pressure boiler tubes must conform to rigorous chemical and mechanical property requirements as defined in the standard specification.
Fundamental Technical Requirements:
• Chemical composition:
Carbon (C): 0.15%-0.27%
Manganese (Mn): 0.40%-0.90%
Phosphorus (P): ≤0.030%
Sulfur (S): ≤0.030%
Silicon (Si): 0.10%-0.35%
• Mechanical properties:
Tensile strength: ≥415 MPa
Yield strength: ≥240 MPa
Elongation: ≥30% (in 2 inches)
•Heat treatment: Tubes are supplied in the normalized condition to ensure grain refinement and stability
Dimensional Data & Manufacturing Process
The production of ASTM A192 seamless tubes at Tenjan involves advanced manufacturing techniques to meet the exacting requirements of boiler applications.
Controlled Manufacturing & Dimensions:
• Seamless process: The seamless tubes are manufactured by piercing a solid round billet, followed by a cold drawing process to achieve precise dimensions and a superior surface finish.
• Dimensional precision: Tight control of outer diameter and wall thickness tolerances ensures proper fit-up in boiler tube assemblies
• Surface quality: Superior internal surface finish with minimal roughness to optimize heat transfer efficiency
• Straightness requirements: Maximum deviation of 2mm/m for cold-drawn tubes and 3mm/m for hot-rolled tubes
Quality Assurance & Testing Protocols
ASTM A192 carbon steel tubes from Tenjan undergo comprehensive testing to verify compliance with all standard-mandated requirements.
Comprehensive Quality Assurance:
• Hydrostatic testing: Each tube is subjected to hydrostatic testing per standard requirements
• Non-destructive testing: 100% ultrasonic examination in accordance with ASTM A530/A530M
• Flattening test, flaring test, and hardness test conducted as required
• Third-party inspection: Supported by independent verification agencies with mill test certificates complying with ASTM A1016/A1016M
Applications & Industrial Use
ASTM A192 seamless carbon steel tubes serve critical functions in high-pressure thermal energy systems across multiple industries.
Primary Application Areas:
• Power generation boilers: Water wall tubes, superheater sections, and economizer tubes in fossil fuel power plants
• Industrial boiler systems: High-pressure steam generation equipment in process industries
• Heat recovery steam generators: Tubing for waste heat recovery systems
• Thermal processing equipment: High-temperature fluid conveyance in industrial processes
Tenjan's Manufacturing Advantage
Tenjan Steel brings specialized expertise in the production of high-pressure boiler tubes that meet the stringent requirements of ASTM A192 specifications.
Our Commitment to Excellence:
• Full-process control: Comprehensive manufacturing oversight from steelmaking to final heat treatment
• Technical expertise: Advanced production capabilities for both cold-drawn and hot-rolled boiler tubes
• Quality certification: Manufacturing processes certified under ISO 9001 quality management system
• Customized solutions: Tailored dimensional options and heat treatment processes to meet specific project requirements
• Professional support: Technical assistance for material selection and application engineering
Through continuous process innovation and strict quality control, Tenjan ensures that our ASTM A192 seamless tubes deliver reliable performance in the most demanding high-pressure, high-temperature boiler applications, backed by comprehensive technical support and customer service.
Custom Sizes OD10-108mm - ASTM/EN/DIN/JIS/GOST Certified - Small-Batch Friendly
| Parameter | Key Features |
| Outer Diameter | 10-108mm (0.39"-4.25") • Fully customizable |
| Wall Thickness | 1-20mm (0.039"-0.79") • ±0.1mm precision tolerance |
| Material | Carbon Steel • Alloy Steel • Special grades available |
| Process | Cold Drawn & Cold Rolled for superior finish |
| Industry | Typical Grades We Supply |
| GB | DT4,Y15,10#,20#,20G,Q235,25Mn,35#,45#,55# |
| ASTM | 1215,1008,1010,1020,A105,A106 Gr.B,A36,1026,1035,1045,1055,SA179,SA192 |
| EN | DC01,11SMn30,P235TR1,P195GH,P265TR2,E235 |
| DIN | DC01,11SMn30,CK10,C10,ST35.8,C20,CK20, ST45.8,St37,S235JR,C26D,CK35,CK45,CK55 |
| JIS | SUM22,S10C,STKM11A,STPT370,STB35,S20C,STKM12, STKM13,STPT410,STB42,SS400,S35C,S45C,S55C |
| GOST | 08КП,10,20,Ст3сп,25,35,45,55 |
| Other Speical Grades can be customized | |
| Standard | Key Applications Parts | Relevant Standards | Our Advantages |
| Automotive and Motorcycle Component | Shock Absorbers,Steering Systems,Thrust Rods | EN 10305-1,JIS G3445, DIN 2391,ASTM A519 | High fatigue strength,High yield strength,lightweight,precision dimensions (±0.1mm) |
| Engineering and Mining Support | Anchor Bolts,Support Pipes,Hydraulic Props | ASTM A519,DIN 2391, JIS G3441,EN 10297-1, ISO 10799 | High Strength &Yield Strength&High Elongation Customization Service - Special steel grades,dimensions and surface treatments available according to project requirements |
| Construction Machinery | Drive shaft sleeves ,Gearbox Guide Tubes,Crane Boom Guide Tubes,Excavator Arm Tubes,Loader Frame Tubes, Arctic Low-Temperature Tubes | ASTM A519,DIN 2391, JIS G3445,EN 10210-1, GOST 8733,ASTM A106, ISO 9329 | ID/OD tolerances of ±0.05mm.Wall thickness uniformity straightness ≤0.5mm/m |
| Fluid Transport Systems | Oil/Gas pipelines,chemical systems,Power/Energy | ASTM A106 Gr.B, EN 10216-2,GOST 8734 | Eddy Current + Ultrasonic Testing,Hydrostatic Testing |
| High-Pressure Boilers | Superheaters,Steam lines,Reheaters,Economizers) | ASTM A192,DIN 17175, EN 10216, JIS G3461/G3462 | Enhanced material density through cold-drawing/rolling ensures long-term stability Full Compliance with Int'l Standards,Superior Creep & Fatigue Resistance |
| Geological Drilling | Drill Pipe,Tubing | ASTM A519,API 5DP, EN 10208-2 | High Strength & Wear Resistance precision Dimensions Impact & Fatigue Resistance |
| Agricultural Machinery | Hydraulic cylinders,drive shafts,Lift arms, steering housings,Boom frames | ASTM A519,EN 10210-1, DIN 2391,GOST 8733, JIS G3445 | Material Advantages:High Strength & Lightweight,Precision Cold-Drawing Technology,Dimensional accuracy ±0.05mm |
| Petroleum Cracking Units | Reformer Tubes,Heat Exchanger Tubes,Reactor Feed Pipes,Transfer Lines,Quench Oil Pipes | ASTM A335,ASTM A213, EN 10216-2 | Optimized Material Purity,Precision Dimensional Control,Customized Solutions |
Tailored Features · Designed Exclusively for Your Needs
Breakthrough in Pure Iron 1215 Steel Tube Mass Production – 30% Cost Saved vs. Solid Bar Machining Industry-First Innovation:
We’ve achieved mass production of precision soft iron carbon tubes and 1215 free-cutting steel tubes, eliminating costly machining steps for OEMs.
Key Benefits:
✔ 30% Lower Total Cost– Replace solid round bars (no boring needed)
✔ Faster Production – Reduced machining & assembly time
✔ Less Waste – Precision hollow tubes optimize material use
Applications: Automotive, Hydraulics, Fasteners, and Machined Components.
Cold Drawing + Cold Rolling Dual-Process Technology – Affordable Small-Diameter Seamless Steel TubesInnovative Production for Precision Tubes:
Our self-developed piercing mill combines cold drawing & cold rolling, optimizing efficiency for small-diameter seamless steel tubes (OD<50mm).
Key Advantages:
✔ Lower Cost – Dual-process reduces material waste & energy use
✔ Tighter Tolerances– Improved surface finish & dimensional accuracy
✔ Faster Lead Time– Streamlined production vs. traditional methods
Applications: Automotive, Hydraulics,Oil & Gas/Petrochemical，High-Pressure Boilers，and Fluid Transport Systems.
100+ Carbon Steel Grades – Customize for 20% Cost Savings (Machining,Construction More） Premium Steel Supply Chain:
Partnering with Baosteel, Xingcheng Shagang, we offer 100+ fully customizable carbon steel grades with guaranteed quality and stable supply.
Customization Advantages:
✔ Chemical Composition– Adjust C, Mn, Si, etc. for specific applications
✔ Mechanical Properties– Yield/Tensile strength optimization
✔ Rigorous QC– Full inspection (UT, hardness testing, dimensional checks)
✔ 20% Procurement Savings– Bulk pricing process efficiency
Key Industries Served: Machining Automotive，Construction Infrastructure, Oil Gas, Heavy Equipment
High-Precision Tube Straightening Technology - ≤0.5mm/m Tolerance for 30% Faster MachiningIndustry-Leading Straightening Solutions:
Our proprietary system delivers carbon steel tubes with ≤0.5mm/m straightness-4X more precise than industry standards, specifically engineered for high-speed machining applications.
Key Advantages:
✔ 30% Production Boost- Perfect straightness reduces lathe processing time
✔ Tool Life Extension- Minimizes cutting tool stress and wear
✔ Cost Efficiency- Lower maintenance and higher throughput
Technical Superiority:
In-House Developed Equipment- Customized for machining-grade precision
20+ Years Expertise- Master technicians ensure optimal results
Automated Quality Control- Consistent straightness verification
Ideal for:Hydraulic Cylinder Tubes, Automotive Shafts, Industrial Machinery, Oil Gas Equipment
Ultrasonic + Eddy Current Dual-Testing - 0.20mm Flaw Detection for Critical Steel Tubes Industry-Leading NDT Precision:
Our dual-technology inspection systemdelivers 0.20mm flaw detection accuracy- the gold standard for mission-critical tubing applications.
Dual-Testing Advantages:
✔ Ultrasonic Testing (UT)- Detects 0.20mm micro-cracks & inclusions
✔ Eddy Current (ET)- Pinpoints surface/subsurface defects
✔ Multi-Probe Array- 360° coverage (ID/OD/wall thickness)
Two-Layer Quality Assurance
Flaw Detection: Cracks/pores/inclusions ≤0.20mm
Dimensional Control: ±0.05mm tolerance verification
Critical Applications: Automotive Airbag Tubes,Fluid Transport Systems, Petrochemical High-Pressure Piping
Why settle for generic materials when we can align specifications directly to your application? By focusing on only what you need, we deliver superior cost efficiency without compromising quality—saving you time and resources.
Our surplus capacity acts as a safety net, eliminating risks of bottlenecks or missed deadlines—critical for projects with strict timelines.
• Advanced metalworking: Piercing, pickling, heat treatment & cold forming
• Precision verification: Dual NDT (Ultrasonic/Eddy Current) + material testing (Tensile/Chemical)
• 24/7 lab monitoring of 60+ parameters ensuring product consistency
IATF16949: Automotive-grade quality for precision parts.
TS (Pressure Pipe): Safety compliance for critical infrastructure (e.g., pipelines, boilers).
ISO9001: General excellence in process management.
Plus optional third-party validation (TÜV/SGS) for added credibility in regulated markets like aerospace, energy, or medical devices.
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