ASTM A192 Cold Drawn Seamless Carbon Steel Boiler Tube Supplier
High Pressure Service – OD 6~204mm | WT 1~18mm
Product Overview
Our ASTM A192 / ASME SA192 cold drawn seamless carbon steel boiler tubes are specifically designed for high pressure boiler service in power plants and industrial boilers. Manufactured by the cold drawing process at our Wuxi facility, these tubes offer higher strength than SA179 and are ideal for water wall tubes, economizers, and low temperature superheaters.
Key Specifications:
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Standard: ASTM A192 / ASME SA192
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Material: Carbon Steel (0.06-0.18% C)
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Outer Diameter: 6mm – 204mm (Standard Stock: 19mm – 89mm)
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Wall Thickness: 1mm – 18mm
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Length: 3m – 12m (Custom lengths available)
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Manufacturing Process: Cold Drawn (Seamless)
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Hardness: ≤77 HRB – slightly harder than SA179 for higher pressure service
✅ ASTM A192 certified – Compliant with ASME Boiler & Pressure Vessel Code Section II
✅ Seamless cold drawn – No weld seam – zero leak risk at high pressure
✅ Higher strength than SA179 – Designed for high pressure boiler service
✅ Up to 850°F (454°C) – Elevated temperature capability
✅ 100% hydrostatic & eddy current tested – Guaranteed integrity
✅ EN 10204 Type 3.1 MTC provided with heat number
✅ Factory direct – Competitive pricing and fast delivery
Chemical Composition
| Element | Requirement | Significance |
|---|---|---|
| Carbon (C) | 0.06% – 0.18% | Balanced for strength and weldability |
| Manganese (Mn) | 0.27% – 0.63% | Provides strength, controls hardenability |
| Phosphorus (P) | ≤0.035% | Low for good weldability |
| Sulfur (S) | ≤0.035% | Low for good formability |
💡 Controlled carbon and manganese content ensures consistent mechanical properties and excellent weldability for boiler fabrication.
Mechanical Properties
| Property | Value | Significance for Boiler Service |
|---|---|---|
| Tensile Strength | ≥325 MPa (47,000 psi) | Adequate for high pressure |
| Yield Strength | ≥180 MPa (26,000 psi) | Good balance of strength and ductility |
| Elongation | ≥35% | Good ductility for forming |
| Hardness (HRB) | ≤77 | Slightly harder than SA179 for higher pressure |
Dimensional Tolerances – Cold Drawn
| OD (mm) | Tolerance (mm) | WT (mm) | Tolerance (mm) |
|---|---|---|---|
| <25.4 | ±0.10 | <2.0 | ±0.10 |
| 25.4 – 38.1 | ±0.13 | 2.0 – 3.0 | ±0.12 |
| 38.1 – 50.8 | ±0.15 | >3.0 | ±0.15 |
| 50.8 – 76.2 | ±0.20 | — | — |
Manufacturing Process – Cold Drawing
Cold Drawing Process for Boiler Tubes:
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Hot rolled tubes are pickled to remove scale
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Cold drawing precisely reduces the diameter – increases strength
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Annealing (normalizing) – restores ductility, ensures uniform microstructure
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Straightening – ensures straightness for boiler installation
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Precision cutting – to exact customer length requirements
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100% NDT and hydrostatic testing – guarantees integrity
ASME SA192 vs ASME SA179
| Feature | ASME SA179 | ASME SA192 |
|---|---|---|
| Primary Application | Heat exchangers, condensers | High pressure boilers |
| OD Range | 1/8″ – 3″ | 1/8″ – 7″ (larger) |
| Wall Thickness | Thin (0.5-3mm) | Medium to heavy (1-15mm) |
| Hardness (HRB) | ≤72 | ≤77 |
| Pressure Rating | Low to medium | High |
| Application | Heat transfer equipment | Boilers, superheaters |
💡 SA192 is designed for high pressure boiler service with heavier wall capability and larger diameters.
Key Applications
| Boiler Section | Typical OD | WT Range | Operating Temp | Suitability |
|---|---|---|---|---|
| Water wall tubes | 2″ – 3″ | 4.0 – 6.0mm | 500-700°F | Excellent |
| Economizer tubes | 1.5″ – 2.5″ | 3.0 – 5.0mm | 400-600°F | Excellent |
| Low temp superheater | 1.5″ – 2.5″ | 4.0 – 6.0mm | 700-850°F | Good |
| Downcomer tubes | 3″ – 7″ | 5.0 – 10.0mm | 400-600°F | Excellent |
💡 SA192 covers the majority of subcritical boiler tube applications – water walls, economizers, and low temperature superheaters.
Why Choose Our ASTM A192 Boiler Tubes?
Advantage Description Cold drawing specialist Dedicated cold drawing line for boiler tubes Higher strength than SA179 Designed for high pressure boiler service Wide size range OD 6-204mm – one-stop sourcing Heavier walls Up to 18mm wall thickness – higher pressure rating 100% tested Hydrostatic + eddy current on every tube Full traceability EN 10204 3.1 MTC with heat number Heat treated Normalized for optimal microstructure
Contact for Quote
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: www.hzhmetals.com / www.wuxihengzhihui.com
Contact Person: Alice Yuan
Reply within 24 hours.
Tags: ASTM A192 High Pressure Boiler Tube Seamless Boiler Tube SA192 Tube ASME SA192 Boiler Tube Water Wall Tube
