Stainless Steel 321 Screw Manufacturers In India

Sachiya Steel International is one of the Leading Manufacturer And Exporter Of High Quality Stainless Steel 321 Screw, which is an electric-furnace processed austenitic stainless steel. These Stainless Steel 321 Screws is a titanium-stabilized version and used in particular applications within the sensitizing temperature range. This titanium addition in Stainless Steel 321H Screws reduces or prevents carbide precipitation during welding and in the 800 ° – 1500 ° F service conditions.

However local depletion within the weld area of Stainless Steel 321 Hex Head Screws can still be a problem leading to some inter-granular corrosion if later exposed to severe corrosive conditions. The key property of Stainless Steel 321H Socket Head Cap Screws is the added titanium content stabilizing the material and making its resistance to carbide precipitation when exposed to high temperatures and resistance to oxidation its main characteristics. Resistance to organic acids and some inorganic acids in Stainless Steel 321 Socket Set Screws is excellent.

Stabilization in Stainless Steel 321H Anchors Screws is recommended for most severe service conditions (above 425 ° C) and particularly for material annealed at the upper side of the annealing temperature range. Stainless Steel 321 Blind Rivet Screws has excellent resistance oxidation to 1500 ° F (816 ° C) and good low temperature toughness. Stainless Steel 321H Concrete Screws has working temperatures of 2100 – 2300 ° F (1149 – 1260 ° C) are recommended for forging, upsetting and other hot working processes.

SS 321/321H Screws Specifications
Specifications	:	ASTM A 193 ASME SA 193
Standard	:	DIN, ASTM, BS and all International Standards
Length	:	3 mm to 200 mm
Size	:	M3 – M56 | 3/6″ to 2″ | Custom Sizes
Type	:	Hex Head Screw, Socket Head Cap Screw, Socket Set Screws, Anchor Screw, Blind Rivet, Concrete screw, Threaded Screw, Steel Shoulder Screw, Panel Screw, Machine Screw.

321/321H Stainless Steel Screws Chemical Composition

Stainless Steel 321/321H Screw Mechanical Properties

Equivalent Grades for 321/321H Stainless Steel Screw

SS 321/321H Screws Application Industries

• Off-Shore Oil Drilling Companies
• Power Generation
• Petrochemicals
• Gas Processing
• Specialty Chemicals
• Pharmaceuticals
• Pharmaceutical Equipment
• Chemical Equipment
• Sea Water Equipment
• Heat Exchangers
• Condensers
• Pulp and Paper Industry

321/321H Steel Screws Test Certificates

We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc

Material Testing

We at Sachiya Steel International ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test

Documentation

• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)