Does an ASTM A105 end cap show corrosion resistance?
This material shows moderate corrosion resistance and can limit pitting, crevice corrosion, and stress-induced cracking. Manufacturers often provide an ASTM A105 end cap with a galvanized coating (zinc) to extend the service life. It creates a protective barrier that keeps the surface from getting damaged. Clients can request other barrier protection coats, like epoxy, paint, and powder.
We recommend regular maintenance and visual inspection to guard against dents, porosity, and undercuts. Sourcing these mild carbon steel components from trustworthy manufacturers is also advisable. High-quality raw materials and intensive testing can bolster the efficiency of industrial piping in the long haul.
Can you weld SA105 pipe caps?
This component is helpful in waterproofing piping and closing the ends during inspection or transitions. An SA105 pipe cap displays good weldability compared to other grades. You can easily weld it due to its low carbon content, which renders it more workable and machinable. (Notably, SA105 is the same material as A105.)
Moreover, these forged caps deliver strength and endurance for high temperatures. They are available in different dimensions and shapes to match the specific need. For example, an A105 carbon steel rectangular cap closes piping with rectangular ends. Installing them is quick and straightforward, contributing to their popularity.
Top 10 uses of an A105N carbon steel cap
The primary role of these caps is to protect pipe ends from moisture, damage, and external substances that may affect the fluid inside. An A105N carbon steel cap works well in low-temperature applications in pressure systems.
These components, alternately called head caps, block the pipeline for protection, inspection, etc. They also limit the wastage of the media inside. The key sectors using these fittings include:
ASTM A105 End Cap specification
| Material | Sizes | Connection Types |
|---|---|---|
| ASTM A105 |
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| Threads | ASME/ANSI | Test Certificates |
| NPT, BSPT, BSPP |
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| Types | Forging Methods | Surface |
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Types of ASTM A105 end cap
ASTM A105 carbon steel forged cap
ASTM A105 pipe socket cap
ASTM A105 end threaded cap
A105n square forged cap
SA105 carbon steel round socket caps
A105 carbon steel threaded cap
SA105 socket weld pipe cap dimensions
Class 3000 |
Nominal Pipe Size | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
| B | 3/4 | 7/8 | 1 1/16 | 1 1/4 | 1 1/2 | 1 13/16 | 2 1/4 | 2 1/2 | 3 | 3 5/8 | 4 5/16 | 5 1/2 | |
| C | 0.420 | 0.555 | 0.690 | 0.855 | 1.065 | 1.330 | 1.675 | 1.915 | 2.406 | 2.906 | 3.535 | 4.545 | |
| D | 7/16 | 7/16 | 7/16 | 1/2 | 9/16 | 5/8 | 11/16 | 3/4 | 7/8 | 7/8 | 1 | 1 1/8 | |
| F | 11/16 | 3/4 | 3/4 | 7/8 | 1 | 1 1/16 | 1 3/16 | 1 1/4 | 1 1/2 | 1 9/16 | 1 13/16 | 2 1/16 | |
| Wt | 0.063 | 0.063 | 0.125 | 0.188 | 0.313 | 0.375 | 0.813 | 1.125 | 1.688 | 3.000 | 3.625 | 6.688 | |
Class 6000 |
B | - | - | - | 1 1/2 | 1 3/4 | 2 1/4 | 2 1/2 | 3 | 3 5/8 | 4 1/4 | 5 | 6 1/4 |
| C | - | - | - | 0.855 | 1.065 | 1.330 | 1.675 | 1.915 | 2.406 | 2.906 | 3.535 | 4.545 | |
| D | - | - | - | 1/2 | 9/16 | 5/8 | 11/16 | 3/4 | 7/8 | 7/8 | 1 | 1 1/8 | |
| F | - | - | - | 1 | 1 1/16 | 1 1/4 | 1 5/16 | 1 3/8 | 1 5/8 | 1 11/16 | 1 15/16 | 2 5/16 | |
| Wt | - | - | - | 0.375 | 0.500 | 1.125 | 1.125 | 2.250 | 3.500 | 5.625 | 6.000 | 13.500 |
A105N carbon steel threaded cap dimensions
| Class 3000 | Nominal Pipe Size | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
| B | 3/4 | 3/4 | 7/8 | 1 1/8 | 1 3/8 | 1 3/4 | 2 1/4 | 2 1/2 | 3 | 3 5/8 | 4 1/4 | 5 1/2 | |
| D | 15/16 | 1 | 1 | 1 1/4 | 1 7/16 | 1 5/8 | 1 3/4 | 1 3/4 | 1 7/8 | 2 3/8 | 2 9/16 | 2 11/16 | |
| Wt | 0.031 | 0.063 | 0.125 | 0.250 | 0.313 | 0.500 | 1.000 | 1.625 | 3.125 | 5.000 | 8.500 | 14.000 | |
Class 6000 |
B | 7/8 | 1 | 1 1/4 | 1 1/2 | 1 3/4 | 2 1/4 | 2 1/2 | 3 | 3 5/8 | 4 1/4 | 5 | 6 1/4 |
| D | 1 | 1 1/16 | 1 | 1 5/16 | 1 1/2 | 1 11/16 | 1 13/16 | 1 7/8 | 2 | 2 1/2 | 2 11/16 | 2 15/16 | |
| Wt | 0.125 | 0.125 | 0.188 | 0.313 | 0.438 | 0.750 | 1.313 | 1.688 | 3.250 | 8.100 | 11.700 | 14.250 |
SA105 end cap chemical composition
| C | Si | Mn | Cu | S | V | P | Cr | Mo | Ni |
| 0.35 | 0.10–0.35 | 0.60–1.05 | 0.40 | 0.040 | 0.08 | 0.035 | 0.30 | 0.12 | 0.40 |
ASTM A105 threaded cap mechanical properties
| Elongation | Tensile Properties | HB max |
|---|---|---|
| 22 % | 485(N/mm2) | 187 |
What is the pressure rating of class 150 ASTM A105 forged caps?
Class 150 fittings operate in low-pressure conditions. The maximum pressure these caps can endure is 140 to 150 psi.
However, ASTM A105 forged caps are also available in classes 3000 and 6000. They are high-pressure forged pipe fittings and can comfortably handle adverse requirements in pressure systems.
Difference between an ASTM A105N CS socket weld end cap and ASTM A105N threaded cap
Clients can purchase these components in threaded and socket varieties. A threaded connection can be straightforward and leak-tight in small-diameter pipes. An ASTM A105 threaded cap is available in standard thread types, like NPT, BSPP, and BSPT. It gets screwed onto the piping and caters to pressure classes from 2000 to 6000. The primary uses are in non-critical applications like industrial cooling or domestic water pipelines.
On the other hand, an ASME SA105 socket weld cap gets connected to piping by a fillet weld. It can tolerate higher pressures due to its strong sealing – up to Class 9000. An ASTM A105N CS socket weld end cap is perfect for protection against leakage and excellent connection strength.
Characteristics of an ASTM A105N end cap
The “N” stands for normalization, a heat treatment that boosts the material properties. An ASTM A105N end cap gets favoured in low temperatures and can operate at conditions as low as -29°C.
These components display toughness and cost-effectiveness. They undergo a CVN (Charpy Impact Test) to adjudge their fitness for extreme conditions. Their resistance to embrittlement and fracture improves their durability in industrial piping.