Thank you for writing to us. One of our executive will reach back to you through your submitted medium. In case there’s an urgency, feel free to connect over WhatsApp for faster response.
Prefer calling? Dial +919029362692 (International callers) or +919029362692 (Indian callers).
Product name:Gr12 Titanium Hemispherical Head
Standard: ASME VIII-I, DIN28013
Material: GR1, GR2, GR7, GR12
Size: Customized
Gr12 Titanium Hemispherical Head
Hemispherical head refers to the head composed of half spherical shell and straight edge (cylindrical short joint). The radius of curvature of the spherical shell is equal everywhere and the force is uniform. Compared with other heads, hemispherical heads require the smallest wall thickness under the same internal pressure. At the connection between the spherical shell and the cylinder with the same thickness, the edge stress caused by the change of curvature radius is only 3.1% of the overall membrane stress of the cylinder, which can be ignored. Therefore, the mechanical properties of hemispherical head are the best and the materials used are the most economical.
Product name:Gr12 Titanium Hemispherical Head
Standard: ASME VIII-I, DIN28013
Material: GR12
Size: Customized
MOQ:1PC
Spherical head, also known as spherical crown head, is a head formed by the spherical crown part of the spherical shell, including hemispherical head and non folded spherical head.
The spherical head has excellent forging, smooth surface, acid and alkali resistance, high temperature resistance, beautiful appearance and strong texture performance.
The applicable medium of spherical head is gas, liquid and steam.
Spherical heads are used in petroleum, electronics, chemical industry, medicine, textile, food, machinery, construction, nuclear power, aerospace, military and other industries.
Precautions for use of spherical head:
1. Carbon steel spherical head will crack in nitrate, ammonia, alkaline sodium and other environments. Explain to eliminate residual stress when ordering head.
2. Stress corrosion cracking of austenitic stainless steel will occur in the specific environment with chloride ions. Select appropriate materials when designing spherical head.
3. For carbon steel vessels requiring hot galvanizing or aluminizing, heat treatment shall be carried out first to remove residual stress
Titanium grade 12 pipe (Ti-0.3Mo-0.8Ni)
Chemical compositions(weight%,<=)
Mo
Ni
Fe
C
N
0.2-0.4
0.6-0.9
0.30
0.08
0.03
H
O
Ti
Others
Total
0.015
0.25
Remainder
0.10
0.40
Physical properties(>=)
Σb
Tensile Strength
(Mpa)
σr0.2
Yield Strength
(Mpa)
δL0+50mm
Elongation
(%)
ψ
Reduction of area
(%)
440
345
18
Product name:Gr7 Titanium dished Head
Standard: ASME VIII-I, DIN28013
Material: GR1, GR2, GR7, GR12
Size: Customized
Gr7 Titanium Hemispherical Head
Dish-shaped head refers to the head composed of three parts: partial spherical shell, circular arc prayer side and good side (cylinder short treatment). Due to the abrupt change of radius of curvature at the junction between spherical shell and flanged edge, flanged edge and straight edge, the edge stress is much larger than the film stress caused by inner ash, and its mechanical properties are worse than that of spherical and elliptic head.
Because of the shallow disc head, the requirements of stamping equipment and mold are low, so it is more convenient to manufacture. Rarely used in force vessels, only where pressure is low and a reduced head depth is required or where a die is lacking.
The disc-shaped head is a continuous surface. The radius of curvature of the warp has a sudden change at the junction of three parts. As the curvature changes, there is bending stress. The result of the superposition of the bending stress and the tensile stress makes the stress in this part stand out from the other parts. Compared with the oval head, the stress distribution is not as uniform, but the machining is easier, so it is not ideal in engineering use. But when the mold processing of oval head is difficult, disc head is used instead.
Size range: 50mm-10000mm with integral formed,larger sizes with subsection formed can be specified.
Standard: ANSI, ASME ,MSS, API, DIN, JIS, BS,AWWA
Thickness: 2mm-300mm
Material: Titanium, titanium alloy
Material grade:Grade 7
Application: mainly for pressure vessels and boilers in diverse industry such as oil, chemical,winery, pharmaceutical, environmental and military.
Grade 7 (Ti-0.2Pd) titanium
Chemical compositions(weight%,<=)
Pd
Al
V
Fe
C
0.12-0.25
----
----
0.30
0.08
N
H
O
Other(total)
Ti
0.05
0.015
0.2
0.4
Remainder
Physical properties(>=)
Σb
Tensile Strength
(Mpa)
σr0.2
Yield Strength
(Mpa)
δL0+50mm
Elongation
(%)
ψ
Reduction of area
(%)
370
250
20
25
Product name:Gr7 Titanium dished Head
Standard: ASME VIII-I, DIN28013
Material: GR1, GR2, GR7, GR12
Size: Customized
Gr7 Titanium Hemispherical Head
Dish-shaped head refers to the head composed of three parts: partial spherical shell, circular arc prayer side and good side (cylinder short treatment). Due to the abrupt change of radius of curvature at the junction between spherical shell and flanged edge, flanged edge and straight edge, the edge stress is much larger than the film stress caused by inner ash, and its mechanical properties are worse than that of spherical and elliptic head.
Because of the shallow disc head, the requirements of stamping equipment and mold are low, so it is more convenient to manufacture. Rarely used in force vessels, only where pressure is low and a reduced head depth is required or where a die is lacking.
The disc-shaped head is a continuous surface. The radius of curvature of the warp has a sudden change at the junction of three parts. As the curvature changes, there is bending stress. The result of the superposition of the bending stress and the tensile stress makes the stress in this part stand out from the other parts. Compared with the oval head, the stress distribution is not as uniform, but the machining is easier, so it is not ideal in engineering use. But when the mold processing of oval head is difficult, disc head is used instead.
Size range: 50mm-10000mm with integral formed,larger sizes with subsection formed can be specified.
Standard: ANSI, ASME ,MSS, API, DIN, JIS, BS,AWWA
Thickness: 2mm-300mm
Material: Titanium, titanium alloy
Material grade:Grade 7
Application: mainly for pressure vessels and boilers in diverse industry such as oil, chemical,winery, pharmaceutical, environmental and military.
Grade 7 (Ti-0.2Pd) titanium
Chemical compositions(weight%,<=)
Pd
Al
V
Fe
C
0.12-0.25
----
----
0.30
0.08
N
H
O
Other(total)
Ti
0.05
0.015
0.2
0.4
Remainder
Physical properties(>=)
Σb
Tensile Strength
(Mpa)
σr0.2
Yield Strength
(Mpa)
δL0+50mm
Elongation
(%)
ψ
Reduction of area
(%)
370
250
20
25
Ladhani Metal Corporation manufactures SS Arc Tube Shields engineered to provide maximum protection for boiler tubes operating under severe thermal and erosive conditions. These shields are designed with a curved or arc profile to cover specific tube sections that are most vulnerable to flue gas turbulence, abrasive ash particles, and soot blower impact. Widely used in superheaters, reheaters, economizers, and waste heat recovery boilers, SS Arc Tube Shields ensure extended service life, reduced downtime, and improved efficiency of boiler systems.
Function of SS Arc Tube Shields
• Protect tube surfaces from localized erosion and high-temperature oxidation
• Provide angular coverage in zones most affected by flue gas and ash flow
• Extend tube life and minimize costly replacements
• Enhance operational reliability in high-stress boiler environments
Ladhani Metal Corporation manufactures, supplies, and exports SS Arc Tube Shields in various radii, thicknesses, and custom-fit designs for use in power plants, WHRBs, HRSGs, and industrial steam boilers.
Available Grades
• SS 304 / SS 304L
• SS 310 / SS 310S
• SS 316 / SS 316L
• SS 410 / SS 420 / SS 430
• 1Cr13
• 1Cr18Ni9Ti
• 1Cr20Ni14Si2
• 1Cr25Ni20Si2
• Cr23Ni13
• Cr25Ni20
Applications: Suitable for thermal power plants, waste heat recovery boilers, HRSGs, petrochemical heaters, and cement industry boilers operating under erosive and high-temperature environments.
Uses
• Protects boiler tube bends, elbows, and high-impact areas
• Shields against abrasive flue gas streams and soot blower erosion
• Extends operational life of superheater, reheater, and economizer tubes
• Reduces maintenance frequency and shutdown costs
Features
• High-temperature oxidation and erosion resistance
• Strong mechanical integrity with precision-engineered fit
• Manufactured in stainless steel and heat-resistant alloys
• Easy to install, remove, and replace during boiler overhauls
Applications
• Power generation boilers – Protects high-erosion flue gas path tubes
• Waste heat recovery boilers – Shields against abrasive gas flows
• HRSGs – Ensures durability in cyclic temperature operations
• Industrial and process heaters – Reliable in corrosive and scaling conditions
Conclusion
SS Arc Tube Shields by Ladhani Metal Corporation provide effective, long-lasting protection for boiler tubes exposed to harsh environments. Available in stainless steel grades (SS 304/304L, SS 310/310S, SS 316/316L, SS 410/420/430) and special alloys (1Cr13, 1Cr18Ni9Ti, 1Cr20Ni14Si2, 1Cr25Ni20Si2, Cr23Ni13, Cr25Ni20), these shields are precision-engineered to improve boiler tube performance, reduce wear, and deliver export-quality durability.
Ladhani Metal Corporation manufactures Arc Tube Shields engineered to protect boiler tubes in areas subjected to severe erosion, high-velocity flue gases, and soot blower impact. Arc Tube Shields are precision-formed to cover the tube surface at specific angles, providing enhanced protection where abrasive particles and thermal stresses are most concentrated. They are widely used in superheaters, reheaters, economizers, and waste heat recovery boilers, ensuring extended service life and improved operational efficiency.
Function of Arc Tube Shields
• Protect boiler tubes from localized erosion and high-temperature oxidation
• Provide coverage in angular positions most prone to flue gas impact
• Extend tube life in high-stress and ash-laden boiler zones
• Reduce downtime and maintenance costs in boilers and HRSG systems
Ladhani Metal Corporation manufactures, supplies, and exports Arc Tube Shields in multiple sizes, thicknesses, and custom radii to match exact tube curvature for power plants, WHRBs, HRSGs, and industrial boilers.
Available Grades
• SS 304 / SS 304L
• SS 310 / SS 310S
• SS 316 / SS 316L
• SS 410 / SS 420 / SS 430
• 1Cr13
• 1Cr18Ni9Ti
• 1Cr20Ni14Si2
• 1Cr25Ni20Si2
• Cr23Ni13
• Cr25Ni20
Applications: Thermal power plants, waste heat recovery boilers, HRSGs, petrochemical heaters, and cement industry boilers operating under erosive and high-temperature conditions.
Uses
• Shields tube surfaces exposed to flue gas turbulence
• Protects elbows, bends, and critical tube sections from ash erosion
• Minimizes wear caused by soot blower operation
• Extends tube service life and reliability
Features
• Excellent resistance to erosion and oxidation at elevated temperatures
• High mechanical strength with precision fit
• Available in stainless steels and special alloys for diverse boiler environments
• Easy to install and replace during boiler maintenance
Applications
• Power generation boilers – Protection in high-erosion flue gas paths
• WHRBs and HRSGs – Long-term durability under cyclic operation
• Industrial boilers – Enhanced reliability in abrasive environments
• Process heaters – Protection against scaling, oxidation, and erosion
Conclusion
Arc Tube Shields by Ladhani Metal Corporation offer reliable protection for boiler tubes against erosion, scaling, and oxidation. Manufactured in stainless steel grades (SS 304/304L, SS 310/310S, SS 316/316L, SS 410/420/430) and special alloys (1Cr13, 1Cr18Ni9Ti, 1Cr20Ni14Si2, 1Cr25Ni20Si2, Cr23Ni13, Cr25Ni20), these shields are designed for durability, precision fit, and export-ready performance in critical boiler operations.
#Mumbai #Pune #Ahmedabad #Vadodara #Surat #Rajkot #Jamnagar #Bharuch #Ankleshwar #Vapi #Delhi #Faridabad #Ghaziabad #Noida #Gurugram #Chennai #Coimbatore #Tiruchirappalli #Hyderabad #Visakhapatnam #Vijayawada #Bangalore #Mangalore #Mysore #Kolkata #Durgapur #Asansol #Bhubaneswar #Rourkela #Raipur #Bhilai #Bilaspur #Nagpur #Nashik #Aurangabad #Indore #Bhopal #Jabalpur #Kanpur #Lucknow #Varanasi #Jaipur #Kota #Udaipur #Jodhpur #Chandigarh #Ludhiana #Jalandhar #Haridwar #Dehradun #Agra #Meerut #Aligarh #Moradabad #Bareilly #Mathura #Gwalior #Rewa #Satna #Sagar #Ujjain #Ratlam #Solapur #Kolhapur #Amravati #Akola #Jalgaon #Latur #Sangli #Nanded #Gandhinagar #Bhavnagar #Mehsana #Surendranagar #Junagadh #Nadiad #Nizamabad #Karimnagar #Warangal #Kurnool #Nellore #Tirupati #Madurai #Tirunelveli #Thoothukudi #Belgaum #Hubli #Tumkur #Sambalpur #Jamshedpur #Ranchi #Dhanbad #Patna #Muzaffarpur#halftubeshield #utypehalftubeshield #tubeshieldexporter #TubeShield #HalfTubeShield #SSHalfRoundShield #BoilerTubeShield #BoilerShield #TubeProtection #Tubeshieldmanufacturer #BoilerTubeProtection #SSTubeShield #MetalIndustry #SteelFabrication #IndustrialShielding #SS304Shield #SS316Shield #StainlessSteelShield #WeldOnShield #WeldedTubeShield #TubeCladding #BoilerTubeSleeve #TubeSleeve #MetalFabrication #PowerPlantSupplies #RefineryEquipment #ProcessIndustry #MetalComponent #TubeShieldForBoilers #BoilerParts #SteelSolutions #TubeShieldManufacturer #TubeShieldSupplier #SSShielding #IndustrialTubeShield #BoilerTubeGuard #CustomMetalParts #SteelIndustryIndia #MetalEngineering #HeavyIndustrySupply #StainlessSteelIndia #SteelExporters #MetalComponentExport #FabricatedProducts #SteelDealer #IndustrialSupplyIndia #BoilerTubeFittings #TubeShieldingSolutions #HalfTubeCover #HeatExchangerShield #HalfRoundReheaterShield #ReheaterTubeShield #BoilerReheaterProtection #PowerPlantTubeShield #BoilerErosionShield #SteamBoilerTubeShield #HighTempTubeShield #BoilerWearProtection