Stainless Steel Products: Shims, Valves, Fasteners, Fittings, Bars & Pipes

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Grades: 304 / 304L · 316 / 316L · 310 / 310S · 321 · 347 / 347H · 317 / 317L · 904L · Forms: Shims · Valves · Fasteners · Tube Fittings · Bars · Pipes & Tubes · Washers

Aashish Metals is a stainless steel products supplier working the parts of the market most pipe stockists skip: precision shims, instrumentation valves and tube fittings, fasteners, bars and pipes, all held grade-wise across 304, 316, 310, 321, 347, 317 and 904L with mill test certificates on every lot. The busiest line here is stainless steel shims, where we cut alignment and precut shims to size, and it sits alongside a full instrumentation range rather than buried under a pipe catalogue. If you already know the grade and the form you need, the tables below take you straight to it.

The second big line is flow control. Our stainless steel valves include needle, ball, manifold, and check styles, in the same grade range and machined for instrumentation and small bore service. On this site, everything is organised the way an engineer would buy it: choose a grade for a certain chemistry, a form for a specific application, and you land on the child page with sizes, the standards they meet, and the data sheets. 

Stainless Steel Grades We Stock

Grade first, because the grade decides whether the part survives its environment. Each row links to the grade in the forms we stock it in.
Grade What it is for Typical forms
304 / 304L The default austenitic: general corrosion service, food, dairy, architecture. 304L for as-welded parts Shims, valves, fasteners, fittings, bars
316 / 316L Adds molybdenum for chloride and marine resistance; the coastal and chemical standard Shims, valves, fasteners, nuts, fittings
310 / 310S High-temperature and furnace service, oxidation resistance to elevated heat Valves, pipes & tubes, sheets, fasteners
321 Titanium-stabilised for weld-zone and elevated-temperature service without sensitisation Valves, fasteners, fittings, pipes
347 / 347H Niobium-stabilised, high-temperature strength; 347H for creep service Valves, fasteners, fittings, bars
317 / 317L More molybdenum than 316 for harsher chloride and acid duty Fittings, fasteners, sheets, pipes
904L Super-austenitic, copper-bearing for sulphuric acid and high chloride Bars, valves, fasteners, fittings, pipes
For seawater and high-chloride service beyond what 904L covers, the step up is Duplex & Super Duplex Steel.

Stainless Steel Product Forms

Form second. Each cluster below is its own hub with grade-wise child pages underneath it.
Form What we hold Go to
Shims Alignment shims, precut shims, laminated and slotted, cut to size in every grade Shims hub
Valves Needle, ball, manifold, check and globe valves for instrumentation and small-bore Valves hub
Tube Fittings Compression and instrumentation fittings, ferrules, elbows, tees, connectors Instrumentation fittings hub
Fasteners Bolts, nuts, stud bolts, hex bolts and washers, grade-wise Fasteners range
Pipes & Tubes Seamless and welded pipe and tube across the grade range Pipes & tubes hub
Bars Round bars and hollow bars for machining Round bars

Stainless Steel Shims

Shims are the line this site is built around, and stainless is the most-asked grade for them. We supply stainless steel shims as alignment shims for machine and coupling setup, precut shims in standard sizes, and laminated peelable shims, cut from 304 and 316 stock to your thickness and footprint. The two grades cover almost every request: 304/304L shims for general machinery alignment, and 316/316L shims where the shim sits in a wet, coastal or chemical environment and plain stainless would pit. Thicknesses run from a few thousandths of an inch upward, and we hold a shim stock range so small orders ship fast.

Stainless Steel Instrumentation Valves & Tube Fittings

The instrumentation range is where the technical buying happens. Our stainless steel valves cover needle valves for pressure isolation, instrumentation ball valves for on-off service, and manifold valves for gauge and transmitter hook-ups, machined in 304, 316, 310, 321, 347H and 904L. High-temperature service is well covered: 310 needle valves hold up where austenitic grades usually soften. Alongside the valves, our stainless steel tube fittings bring compression fittings, ferrules, elbows, tees and connectors in the same grades, so a complete impulse line can be specified from one supplier. For process piping joints, the 317/317L pipe fittings and the rest of the buttweld range sit under the fittings hub.

Stainless Steel Fasteners

Fasteners run grade-wise the same way. We supply 316/316L fasteners for marine and chemical bolting, 304/304H/304L fasteners for general and elevated-temperature work, and 316/316L nuts to match, along with stud bolts, hex bolts and washers across 310, 321, 347, 317 and 904L. Where a specification calls out a stabilised or high-moly grade for the bolting as well as the pipe, we can hold the set to one grade so the joint does not mix metals.

How to Choose the Right Stainless Steel Grade

A short decision guide covers most enquiries:

  • Start with 304/304L: if the service is dry, indoor, food or general engineering, 304 is the economical answer and 304L covers welded parts.
  • Move to 316/316L for chlorides: coastal air, marine, brackish water or chemical splash, where the molybdenum earns its cost.
  • Choose 310/310S for heat: furnace, kiln and high-temperature oxidation service, not aqueous corrosion.
  • Choose 321 or 347/347H for hot welded joints: the titanium and niobium stabilisation resists weld-zone sensitisation at temperature.
  • Step to 904L, then duplex, for acid and high chloride: 904L for sulphuric and phosphoric acid, and duplex and super duplex where seawater and pitting resistance take over

Quality, Testing & Documentation

Every stainless order ships with an EN 10204 mill test certificate, heat-number traceable, and positive material identification is available on the grades where it matters, so the 316 you ordered is confirmed 316 and not 304. Dimensional, hardness and, for welded products, non-destructive checks are carried out to the governing standard for the form. Where a project needs third-party witnesses through BV, SGS or TUV, that is arranged at the order stage. Small shim and fastener orders ship quickly from stock; larger and higher-grade items are confirmed on enquiry. Talk to us with the grade, the form and the quantity and the quote comes back with the certification built in.

Stainless Steel Products: FAQs

304 and 304L, 316 and 316L, 310 and 310S, 321, 347 and 347H, 317 and 317L, and 904L, across shims, instrumentation valves, tube fittings, fasteners, bars and pipes. If a grade or form is not listed, ask, because we hold more than the site shows and can source to specification.

Molybdenum. 316 carries 2 to 3 percent molybdenum that 304 does not, which gives it far better resistance to chlorides, marine air and chemical service. In dry or indoor use 304 is the more economical choice; the moment chlorides are present, 316 is worth its premium. The low-carbon 304L and 316L variants are for parts that are welded and left as-welded.

Yes. Alignment shims, precut shims and laminated peelable shims are cut to your thickness and footprint, most commonly in 304 and 316. We hold a shim stock range so small and urgent orders ship quickly, and larger runs are quoted on enquiry.

Yes, and it is a common request. Needle, ball and manifold valves, compression and tube fittings, and the bolts, nuts and washers can all be held to a single grade such as 316L or 904L, so an instrumentation hook-up or a flanged joint does not mix metals. Give us the grade and the bill of materials and we will quote the set.

Every order ships with an EN 10204 mill test certificate that is heat-number traceable, with positive material identification and third-party witness inspection available at order stage. It is the assurance that the grade on the certificate is the grade in the box.

For More Information About Inconel Products please call +91-22-66362223 / 66394926 or send an email to export@aashishmetal.com

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Aashish Metal & Alloys is a well known Manufacturer , Stockiest, Supplier and Exporter of Raw materials like Long Radius Bends, Compression Tube Fittings, Pipe Fittings, Forged Fittings, Flanges, Shims & Plates, Fasteners, Pipes & tubes, round Bars & Wire etc.

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