Manufacturer, Supplier & Exporter of Stainless Steel Hex Head Plug

A stainless steel hex head plug is a threaded sealing component, designed to close or cap the end of a pipe, port or fitting by engaging with internal threads. Unlike simple end‑caps, the hex head allows for easy installation via a wrench or spanner, enabling high torque for secure sealing. In demanding industrial piping systems—such as chemical, petrochemical, oil & gas, water treatment and power sectors—such plugs are essential for both operational integrity and maintenance flexibility..

A Stainless Steel Hex Head Plug is a threaded fitting used to close the ends of pipes or outlets securely. These plugs have a hexagonal-shaped head which makes installation and removal easy using a standard wrench. Their purpose is to block off pipe openings to prevent the flow of liquids or gases, making them essential in many industrial and commercial piping systems..

Hex head plugs made from stainless steel provide excellent resistance to corrosion, temperature, and pressure. Stainless steel grades such as SS 304, SS 316, SS 316L, and Duplex 2205 are commonly used. These materials ensure longevity and maintain integrity even in aggressive environments like chemical processing plants, marine settings, oil and gas facilities, and power stations...

Riddhi Siddhi Impex is a prominent manufacturer and supplier of Stainless Steel Hex Head Plugs in India. With a reputation for quality, precision, and timely delivery, the company offers these products in multiple sizes, pressure ratings, and threading types. Their manufacturing standards comply with ASME B16.11, ASTM, and other international norms, ensuring the highest quality output for both standard and customized requirements..

Stainless Steel Hex Head Plugs are used across various industries including oil & gas, petrochemicals, water treatment, food processing, pharmaceuticals, and construction. They are especially vital in systems where sealing the end of a pipe or halting the flow temporarily or permanently is required. Due to their strength and corrosion resistance, they’re a preferred choice for both high and low-pressure applications..

Stainless Steel Hex Head Plug – Specification & Details

Product Specification

Product	Stainless Steel Hex Head Plug
Manufacturer	Riddhi Siddhi Impex
Sizes	1/8" to 4"
Thread Type	NPT, BSP, BSPT
Pressure Rating	Class 150, 300, 600, 900
Standards	ASME B16.11, ASTM A182, DIN, IS
Material Grades	SS 304, SS 304L, SS 316, SS 316L, Duplex 2205, Super Duplex 2507

Chemical Composition (Typical – SS 316)

Element	Content (%)
Carbon (C)	0.08 max
Manganese (Mn)	2.00 max
Silicon (Si)	1.00 max
Phosphorus (P)	0.045 max
Sulfur (S)	0.030 max
Chromium (Cr)	16.0 – 18.0
Nickel (Ni)	10.0 – 14.0
Molybdenum (Mo)	2.0 – 3.0

Mechanical Properties (SS 316)

Property	Value
Tensile Strength	515 MPa min
Yield Strength (0.2%)	205 MPa min
Elongation	40% min
Hardness	95 HRB max

Dimension Chart

Nominal Size (Inch)	Thread Type	Length (mm)	Hex Size (mm)
1/8"	NPT/BSP	15	10
1/4"	NPT/BSP	18	13
1/2"	NPT/BSP	22	21
3/4"	NPT/BSP	28	26
1"	NPT/BSP	32	33
2"	NPT/BSP	40	60

Equivalent Grades

Material	UNS	EN	JIS
SS 304	S30400	1.4301	SUS 304
SS 316	S31600	1.4401	SUS 316
SS 316L	S31603	1.4404	SUS 316L

Equivalent Standards

Standard	Description
ASME B16.11	Forged Fittings, Socket-Weld and Threaded
ASTM A182	Forged or Rolled Alloy & Stainless Steel Pipe Fittings
DIN 2999	Threaded Pipe Fittings Standard
IS 554	Indian Standard for Pipe Threads

Other Types of Stainless Steel Plugs

Plug Type	Description
Hex Head Plug	Most common threaded plug with hex head for wrench
Square Head Plug	Square head design for mechanical or hand tool installation
Flush Plug	Designed to sit flush with the pipe end
Countersunk Plug	Ideal for pressure sealing inside tapped holes

These plugs are available with different threading types such as NPT (National Pipe Thread), BSP (British Standard Pipe), and BSPT (British Standard Pipe Tapered). Common pressure ratings include 150#, 300#, 600#, and 900#. This variety allows Riddhi Siddhi Impex to cater to diverse client needs across industry sectors..

Frequently Asked Questions (FAQs)

Q1: What is a Stainless Steel Hex Head Plug used for?

A1: It is used to seal the end of a threaded pipe, preventing flow of fluids or gases in piping systems.

Q2: Can you provide plugs with BSP or NPT threads?

A2: Yes, we offer Stainless Steel Hex Head Plugs with BSP, BSPT, and NPT thread types.

Q3: Are these plugs pressure-rated?

A3: Yes, we offer plugs in Class 150, 300, 600, and higher depending on application.

Q4: Do you supply to Indian cities?

A4: Yes, Riddhi Siddhi Impex is a domestic supplier across Indian cities like Mumbai, Delhi, Ahmedabad, Pune, Surat, and more.