Manufacturer, Supplier & Exporter of Stainless Steel 304 Spool

Stainless Steel 304 Spool is a widely used austenitic stainless steel spool that offers excellent corrosion resistance and durability. Manufactured by Riddhi Siddhi Impex, these spools are designed for high-quality industrial applications across India. The superior chromium and nickel composition of SS 304 ensures resistance to oxidation and rust, making it ideal for long-term performance in various industrial environments..

Riddhi Siddhi Impex, as a trusted manufacturer and supplier, provides SS 304 Spools that meet international standards and industry specifications. Each spool is produced under strict quality control measures, ensuring consistent chemical composition, mechanical strength, and surface finish. The company focuses on delivering spools that are seamless, welded, and fabricated to suit the needs of the client.

The SS 304 Spools are extensively supplied to industrial sectors such as chemical processing, food and beverage, pharmaceuticals, oil and gas, and power generation. Their ability to withstand corrosive environments, along with excellent formability and weldability, makes them highly versatile for piping and fluid transport applications..

The SS 304 Spools are extensively supplied to industrial sectors such as chemical processing, food and beverage, pharmaceuticals, oil and gas, and power generation. Their ability to withstand corrosive environments, along with excellent formability and weldability, makes them highly versatile for piping and fluid transport applications...

Riddhi Siddhi Impex caters to a wide range of domestic cities in India, including major industrial hubs like Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, and Rajkot. The company also reaches emerging industrial markets in Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, and Varanasi, ensuring timely delivery to clients nationwide.

Stainless Steel 304 Spool

Specification

Product Name	Stainless Steel 304 Spool
Manufacturer	Riddhi Siddhi Impex
Material	Stainless Steel 304
Form	Seamless / Welded Spools
Standard	ASTM A312, ASME B36.19, EN 10216-5
Size Range	1/2" NB to 48" NB (Customizable)
Wall Thickness	Sch 10 to Sch 160 / XXS
Length	Single Random, Double Random, or Cut Lengths
Applications	Chemical, Food & Beverage, Pharmaceutical, Oil & Gas, Architectural Projects

Chemical Composition (SS 304)

Element	Content (%)
Carbon (C)	0.08 Max
Chromium (Cr)	18–20
Nickel (Ni)	8–10.5
Manganese (Mn)	2.0 Max
Silicon (Si)	0.75 Max
Phosphorus (P)	0.045 Max
Sulfur (S)	0.03 Max
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	515–720 MPa
Yield Strength	205 MPa Min
Elongation	40% Min
Hardness	≤ 187 HB
Impact Resistance	Excellent at low and high temperatures

Dimension Chart (Nominal)

Nominal Pipe Size (NB)	Outside Diameter (mm)	Wall Thickness (mm)	Length
1/2"	21.3	2.77	Up to 12 m
1"	33.4	3.38	Up to 12 m
2"	60.3	3.91	Up to 12 m
4"	114.3	6.02	Up to 12 m
6"	168.3	7.11	Up to 12 m
10"	273.1	9.27	Up to 12 m
16"	406.4	12.70	Up to 12 m

Equivalent Grades

Standard	Grade
ASTM	A312 TP304
EN	1.4301 / X5CrNi18-10
JIS	304
DIN	1.4301

Equivalent Standards

Standard	Description
ASTM A312	Seamless, Welded, and Heavy-Wall Stainless Steel Pipes
ASME B36.19	Stainless Steel Pipe Dimensions
EN 10216-5	Seamless Stainless Steel Tubes for Pressure Purposes

Other Types of Stainless Steel Pipes

Type	Description
SS 304L Spools	Low carbon stainless steel 304 for improved weldability
SS 316 Spools	Marine grade stainless steel with higher corrosion resistance
SS 310 Spools	High temperature resistant stainless steel
SS 321 Spools	Titanium stabilized stainless steel for high temperature

The mechanical properties of SS 304 Spool make it highly reliable for high-temperature and high-pressure applications. It exhibits excellent tensile strength, impact resistance, and elongation while maintaining corrosion resistance in acidic and alkaline environments. This makes it suitable for critical industrial processes requiring durability and safety..

Frequently Asked Questions (FAQs)

Q1: What are the common applications of SS 304 Spool?

A1: SS 304 Spools are used in chemical, pharmaceutical, food & beverage, oil & gas, and architectural piping applications.

Q2: Can SS 304 Spools be customized in size and thickness?

A2: Yes, Riddhi Siddhi Impex provides custom diameters, wall thicknesses, and lengths to suit client requirements.

Q3: Does SS 304 resist corrosion?

A3: Yes, SS 304 has excellent corrosion resistance in acidic, alkaline, and atmospheric environments.

Q4: What standards do SS 304 Spools comply with?

A4: They comply with ASTM A312, ASME B36.19, and EN 10216-5 standards.