Stainless Steel 321 / 321H Forged Fittings


Arrow Piping Solutions is a leading manufacturer and supplier of SS 321 / 321H Forged Fittings, designed to offer exceptional performance in high-temperature and corrosive environments. The increased carbon content in 321H enhances strength and creep resistance, making it ideal for demanding industrial applications.


We manufacture SS 321 / 321H Forged Fittings in varied sizes, thicknesses, and specifications, tailored to client requirements. With our advanced facilities and technical expertise, we deliver fittings known for their high strength, resistance to abrasion and corrosion, and durable construction.


Stainless Steel 321 / 321H Forged Fittings Range:


  • SS 321 / 321H Forged Coupling
  • SS 321 / 321H Hex Bushing
  • Stainless Steel 321 / 321H Plug
  • Stainless Steel 321 High Pressure Forged Pipe Fittings
  • ASTM A182 SS 321 Threaded Union
  • 321H Stainless Steel Socketweld 45° Elbow
  • SS 321 / 321H 90° Socket Weld Cross
  • Stainless Steel 321 / 321H Threaded Elbow
  • Stainless Steel 321 Screwed Half Coupling
  • Stainless Steel 321 S/W Reducing Tee
  • Stainless Steel 321 Threaded Cap

Specifications

SpecificationASTM A182 / ASME SA182
Dimension StandardsASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799
Size Range1/8" NB to 4" NB
TypeSocketweld, Screwed-Threaded (NPT/PT)
Pressure RatingThreaded: 2000 / 3000 / 6000 LBS
Socketweld: 3000 / 6000 / 9000 LBS

Equivalent Grades

STANDARDWERKSTOFF NR.UNSJISEN
SS 3211.4541S32100SUS 321X6CrNiTi18-10
SS 321H1.4878S32109SUS 321HX12CrNiTi18-9

Arrow Piping Solutions ensures safe packaging and prompt shipping of SS 321 / 321H Forged Fittings, using boxes, wooden cartons, and pallets to avoid damage in transit.

Chemical Composition of Stainless Steel 321 / 321H Forged Fittings

GradeCMnSiPSCrNNiTi
SS 3210.08 max2.0 max1.0 max0.045 max0.030 max17.00 - 19.000.10 max9.00 - 12.005(C+N) – 0.70 max
SS 321H0.04 – 0.102.0 max1.0 max0.045 max0.030 max17.00 - 19.000.10 max9.00 – 12.004(C+N) – 0.70 max

Mechanical Properties of Stainless Steel 321 / 321H Forged Fittings

DensityMelting PointTensile StrengthYield Strength (0.2% Offset)Elongation
8.0 g/cm³1457 °C (2650 °F)Psi – 75000 , MPa – 515Psi – 30000 , MPa – 20535%

Manufacturing Standards

ASTM A182 – ASME SA182Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9Factory-Made Wrought Buttwelding Fittings
ASME B16.11Socket Welding and Threaded Forged Fittings
MSS SP-43Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications
MSS SP-95Swage(d) Nipples and Bull Plugs
BS3799Specification for Steel pipe fittings, screwed and Socket-welding for the petroleum industry

Applications of SS 321 / 321H Forged Fittings

  • Chemical Industry
  • Petrochemical Industry
  • Marine & Power Transmission Industry
  • Power Plants
  • Energy Industries
  • Pharmaceutical Processing
  • Modern Architecture
  • Home Appliances
  • Water Waste Projects
  • Synthetic Fiber Manufacturing
  • Heat Exchangers
  • Fluid Piping
  • Dairy and Food Processing
  • Furniture Industry

Arrow Piping Solutions provides unmatched quality, quick delivery, and competitive pricing on SS 321 / 321H Forged Fittings. Contact us for bulk inquiries, custom orders, or detailed technical assistance.