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Coupling 1/4" BSPT Class 3000 ASTM A350 LF2

Availability: on sale

Dispatched within: 24 hours

Gross price: €4.94

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Vendor: LAME

Product code: 10722A

Description

Coupling 1/4" BSPT Class 3000 ASTM A350 LF2

Size: 1/4" (thread diameter: 11.4–11.9 mm)
Dimension D: 19 mm
Dimension W: 35 mm
Thread type: BSPT tapered thread (ISO 7 Rc)
Material: ASTM A350 LF2 carbon steel (properties comparable to P355NH / S355J2)
Suitable for welding
Pressure class: Class 3000 (206 bar)
Operating temperature: -46°C to +343°C
Charpy impact tested at -46°C
3.1 material certificate available on request (free of charge)
Applications: Industry, pressure vessels, machinery manufacturing, hydraulic systems, outdoor installations, oil and gas pipelines
Origin: European Union

Alternative Name

Coupling 1/4" BSPT Class 3000 ASTM A350 LF2, High-Pressure BSPT Coupling, Female Threaded Coupling, Tapered Thread Coupling, Forged Steel Coupling, Carbon Steel Coupling

Information

The 1/4" BSPT Class 3000 ASTM A350 LF2 Coupling is a high-pressure threaded fitting designed for demanding industrial piping systems. It features female BSPT tapered threads on both ends, providing a secure, leak-tight connection suitable for pressure applications up to 206 bar.

Manufactured from ASTM A350 LF2 low-temperature carbon steel, the coupling is suitable for operation between -46°C and +343°C and has been Charpy impact tested at -46°C. Each coupling is permanently marked with its size, material grade, pressure class, and heat number for full traceability.

Material

ASTM A350 LF2 is a low-alloy forged carbon steel developed for low-temperature pressure service. It is commonly used for forged fittings, flanges, valves, and pressure piping components where excellent toughness and weldability are required.

Suitable for service temperatures down to:

LF1: -20°F
LF2: -50°F
LF3: -150°F

Equivalent or similar material grades include:

P355NL1
P355NH
P355QH
L360NB
1.0566
1.0562
A420-WPL6
ASTM A333 Grade 6
StE355

Advantages

BSPT tapered female threads
Pressure class: Class 3000 (206 bar)
Suitable for low-temperature service
Excellent weldability
High mechanical strength
Charpy impact tested at -46°C
3.1 material certificate available on request

Marking

Each coupling is permanently marked with:

Size
Material grade
Heat number
Pressure class

All markings comply with the applicable industry standards.

Applications

Industrial installations, pressure vessels, machinery manufacturing, hydraulic systems, oil and gas pipelines, outdoor installations, refineries, and process piping.

We also offer BSPT carbon steel couplings in many other sizes. If you have any questions, please contact us. Call +48 63 261 42 02 or email biuro@polberis.pl.

Learn more about our couplings here >>

Technical data

Coupling Type	Coupling
Material	Carbon Steel
Pressure	Pressure Range 101–250 bar
Connection 1	1/4''
Thread Type – Connection 1	BSP / G / Rp / Rc Thread
Connection 2	1/4''
Thread Type – Connection 2	BSP / G / Rp / Rc Thread