321 Stainless Steel Bar

1. Standard: GB ASTM, JIS, etc

2. Grade: Type 321 Stainless Steel

3. Diameter: 2mm-300mm

4. Shape Manufactured: Flat Bar, Square Bar,
Round Bar,Hex Bar and special shapes.

5. Length: 2.00m-6.00m or as customers’ request

6. Surface finish: #4 polish, #6 polish, #7 polish, and #8 mirror finish

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SPECIFICATION OF 321 STAINLESS STEEL BAR

Type 321 stainless steel (UNS S32100) is a stabilized austenitic stainless steel similar to Type 304 but with a titanium addition of at least five times the carbon content. This titanium addition reduces or prevents carbide precipitation during welding and in 800 - 1500ºF (427 - 816ºC) service. It also improves the elevated temperature properties of the alloy.

Yieh United Co. has the stainless steel bar products you need positioned in large depots to meet your demand. Yieh United Co. carries processed bars not only in different types, but also in various grades includes special free-machining grades, food industry-approved grades and materials includes low-sulfur material and dual-certified material.

The normal stock of stainless bar is around 20,000 tons, which ensure the delivery time and flexible choice for our customers.

Product Name Grade Size Finish Quote
Stainless Steel Round Bar 321 Dia: 1.5mm-660mm Black & Pickled & Bright Get A Quote
Stainless Steel Flat Bar 321 thickness: 3mm-25mm
width: 12mm-305mm
stock length: 2mm-10mm
Black & Pickled & Bright Get A Quote
Stainless Steel Square Bar 321 thickness:4mm-100mm (larger sizes available upon request) Black & Pickled & Bright Get A Quote
Stainless Steel Hex bar 321 thickness:4mm -76mm (larger sizes available upon request) Cold rolled, bright surface, some
need to do
heattreatment properly according to customer’s
request.
Get A Quote
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321 STAINLESS STEEL BAR PROCESSING

You can select a number of processing options to produce stainless steel bars to their exact specification, reducing material costs, production time, scrap and internal handling.

Long Porduct Processing Service Overview
Bar Cutting Thickness range is 1/16'' to 28'' diameter. Products cut include round bar, flat bar, hex bar, square bar, tubing and hollow bar, pipe, angles, channles, beams and tees,
Bar Production Cutting Yieh United can provide production cutting for product diameter up to 4''. We utilize our production equipment to achieve these precision cuts with tight tolerances. All products can be cut to exact requirements.
Bar Polishing Round bar, square bar, hex & flat bar, angles, other shapes including tubular products have OD & ID polishing available.
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VALUE ADDED FOR 321 STAINLESS STEEL BAR

  • Polishing: can polish any stainless steel bar item to a #4 polish, #6 polish, #7 polish, or a #8 mirror finish. Stainless steel polished bar can also be cut to size.
  • Heatreating & Annealing: some grades of stainless steel bars can be heatreated to change the mechanical properties. Precipitation hardening stainless steel such as 17-4ph can be heattreated. 410 stainless steel bar can also be heatreated.
  • Multiple cutting stations allow us to ship cut stainless bar to size when you need it.
  • Grinding and polishing available upon request.
  • Special heat treat requirement can also be supplied.
  • Stainless round bars can also be polished or center-less ground to exact tolerance.
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STANDARD CHEMICAL COMPOSITION

Grade Cr Ni C Si Mn P S N Ti Fe
321 min:17.0
max:19.0
min:9.0
max:12.0
max:0.08 max:0.75 max:2.0 max:0.045 max:0.03 max:0.10 min:5*(C+N)
max:0.70
Balance
321H min:17.0
max:19.0
min:9.0
max:12.0
min:0.04
max:0.10
min:18.0
max:20.0
max:2.0 max:0.045 max:0.03 max:0.10 min:5*(C+N)
max:0.70
Balance

 

NOMINAL MECHANICAL PROPERTIES

Grade Tensile Strength
ksi (min.)
Yield Strength 0.2%
Offset ksi (min.)
Elongation% in 50mm (min.) Hardness (Brinell) MAX
321/H 75 30 40 217


NOMINAL PHYSICAL PROPERTIES

Density
lbm/in3
Coefficient of Thermal Expansion (min/in) ºF Thermal Conductivity BTU/hr-ft-ºF Specific Heat BTU/lbm-ºF Modules of Elasticity (annealed)2
psi
at 68 ºF at 68-212ºF at 68-1832ºF at 200ºF at 32-212ºF in tension (E)
0.286 9.2 20.5 9.3 0.12 28 x 106
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