Manufacturer, Supplier & Exporter of 347 Stainless Steel Shim

Riddhi Siddhi Impex is a prominent manufacturer and domestic supplier of 347 Stainless Steel Shim in India, delivering top-quality materials to both industrial and commercial sectors. Grade 347 is a niobium-stabilized austenitic stainless steel offering excellent resistance to intergranular corrosion, especially after welding and in high-temperature services. It’s a preferred choice for heat-resistant and chemical processing environments, offering superior mechanical properties at elevated temperatures compared to SS 304.

Riddhi Siddhi Impex, based in Mumbai, is a prominent manufacturer and suppliDesigned for high-temperature structural applications, 347 Stainless Steel Shim is particularly effective in operating conditions involving frequent heating and cooling cycles. Its composition includes stabilizing elements like niobium and tantalum, which prevent carbide precipitation and make it ideal for welding without post-weld annealing. Riddhi Siddhi Impex manufactures 347 SS shims in a wide range of sizes, finishes, and forms—sheets, coils, strips, and rolls—to meet specific industry requirements.er of high-quality carbon steel pipes and tubes in India. Known for its commitment to quality and industry standards, the company offers a wide range of steel products, including 347 Stainless Steel Shim, customized to meet the specific requirements of clients across various sectors. Their pipes are manufactured using advanced technologies and are subjected to rigorous testing to ensure performance, safety, and compliance with global standards such as ASTM, ASME, and IS.

As a trusted 347 Stainless Steel Shim domestic supplier, we provide immediate delivery across India. Whether your need is a high-strength structural shim for aerospace, a corrosion-resistant gasket spacer for petrochemicals, or a thin, flexible shim for instrumentation, Riddhi Siddhi Impex delivers tailor-made solutions. Our materials comply with ASTM A240 / ASME SA240 standards and are quality tested with MTC and third-party inspection on demand.

We have a strong market presence in metro cities like Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, and Surat, supplying industries such as oil & gas, pharmaceuticals, pulp & paper, and food processing. Our customer-first approach, fair pricing, and prompt deliveries have earned us the reputation of a reliable partner in India’s stainless steel market.

Riddhi Siddhi Impex also caters to specialized demand from Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, and Mangalore, ensuring timely support for maintenance, production, and shutdown projects. We understand the urgency of industrial applications and ensure ready-to-ship inventory for all critical sizes.

347 Stainless Steel Shim

Specifications

Product Name	347 Stainless Steel Shim
Material Grade	SS 347 / UNS S34700
Standards	ASTM A240 / ASME SA240
Thickness	0.02 mm to 3 mm
Width	Up to 600 mm
Finish	2B, BA, Mirror, Matt, No.4
Form	Shim Strip, Coil, Sheet, Roll

Chemical Composition (%)

Element	Content
Carbon (C)	≤ 0.08
Chromium (Cr)	17.0 – 19.0
Nickel (Ni)	9.0 – 13.0
Niobium (Nb)	≥ 10xC and ≤ 1.10
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 1.0
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	≥ 515 MPa
Yield Strength (0.2% offset)	≥ 205 MPa
Elongation	≥ 40%
Hardness	≤ 95 HRB
Density	7.9 g/cm³
Melting Point	1398 – 1446 °C

Dimension Chart

Thickness (mm)	Width (mm)	Form
0.02 – 0.10	Up to 600	Coils / Rolls
0.10 – 1.0	Up to 600	Shim Sheets
1.0 – 3.0	Up to 600	Flat Sheets / Cut Sizes

Equivalent Grades

Standard	Grade
UNS	S34700
WNR	1.4550
EN	X6CrNiNb18-10
JIS	SUS 347
BS	347S17

Equivalent Standards

Organization	Standard
ASTM	A240
ASME	SA240
EN	10088-2
JIS	G4305

Other Stainless Steel Shim Grades

Grade	Description
304 / 304L	General-purpose, corrosion-resistant shims
316 / 316L	Marine grade with molybdenum for superior corrosion resistance
310 / 310S	Excellent heat resistance at high temperatures
321	Titanium-stabilized for intergranular corrosion resistance
347	Niobium-stabilized for high-temp and welding applications

We also supply to fast-growing industrial belts in Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Ankleshwar, Navsari, Valsad, Narmada, and Rajpipla, helping manufacturers meet project timelines and quality expectations. Choose Riddhi Siddhi Impex for dependable supply, certified materials, and unbeatable support across India.

Frequently Asked Questions (FAQs)

Q1: What makes 347 Stainless Steel Shim suitable for welding?

A1: Grade 347 is stabilized with niobium, which prevents carbide precipitation during welding, making it ideal for high-temperature welding applications.

Q2: Can I get custom-cut 347 SS shims for my application?

A2: Yes, Riddhi Siddhi Impex offers custom-cut shims in various thicknesses and dimensions to suit your project needs.

Q3: Do you supply 347 SS shims across all Indian cities?

A3: Absolutely. We supply across Mumbai, Delhi, Chennai, Hyderabad, Pune, Ahmedabad, Surat, Vadodara, and over 40+ Indian cities.

Q4: What industries commonly use 347 SS shims?

A4: Industries such as petrochemical, aerospace, heat treatment, food processing, and power generation commonly use 347 SS shims.