Stainless Steel 321 / 321h Capillary Tubes, SS 321/321h Capillary Tubes, 321/321h Stainless Steel Capillary Tube Manufacturer, SS 321/321h Capillary Tube Supplier, SS 321/321h Capillary Tube Exporter, Stainless Steel 321/321h Precision Tubing, SS 321/321h Small Diameter Tube ,SS 321/321h Instrumentation Tubes
Sumer Metal Industries Private Limited is a renowned manufacturer, supplier, and exporter of high-quality Stainless Steel 321/321H Capillary Tubes. These tubes are precision-engineered to offer excellent performance in high-temperature and corrosive environments. SS 321 is a titanium-stabilized austenitic stainless steel known for its excellent resistance to intergranular corrosion, while 321H is its high-carbon version, designed for enhanced high-temperature strength.
These capillary tubes are widely used in instrumentation, medical equipment, chromatography, hydraulics, aerospace, chemical processing, and other industries that demand high dimensional accuracy and corrosion resistance. Sumer Metal Industries ensures top-notch quality and reliability, making their SS 321/321H Capillary Tubes a preferred choice in critical applications.
Sumer Metal Industries Private Limited has established a robust global presence by exporting Stainless Steel 321/321H Capillary Tubes to several countries, including Oman, Qatar, Saudi Arabia, the UAE, Kuwait, Spain, Germany, the USA, Canada, and across Africa. Their commitment to quality, timely delivery, and customer satisfaction has helped them become a trusted exporter in both developed and developing markets.
Their capillary tubes are manufactured in compliance with international standards such as ASTM A213, ASTM A269, and ASTM A632, ensuring that they meet the stringent demands of global clients. The company uses advanced production technologies, stringent quality control, and certified raw materials to maintain consistency and performance.
Specification of Stainless Steel 321 / 321h Capillary Tubes
| Specification | Details |
|---|---|
| Grade | Stainless Steel 321 / 321H |
| Standards | ASTM A213, ASTM A269, ASTM A632, DIN 17458, EN 10216-5 |
| Manufacturing Type | Seamless, Welded, Cold Drawn |
| Outer Diameter (OD) | 0.25 mm to 8.00 mm |
| Wall Thickness | 0.10 mm to 1.50 mm |
| Length | Custom lengths up to 30 meters or in coil form |
| Surface Finish | Bright Annealed, Polished, Electro-Polished, Pickled |
| Form | Coil, Straight Length, U-Bent, Spool |
| Dimensional Tolerances | As per ASTM standards or customized |
| Hardness | Annealed (Soft) or Hardened on request |
| Temperature Range | Up to 870°C (SS 321), higher resistance for SS 321H |
| End Finish | Plain End, Beveled End, Threaded (as per request) |
| Packaging | Plastic-capped ends, Packed in coils or wooden boxes with proper labeling |
| Applications | Instrumentation, Chemical Industry, Heat Exchangers, Medical Equipment |
| Certifications | ISO 9001:2015, PED, EN 10204 3.1 / 3.2 (upon request) |
Moreover, the company places a strong emphasis on on-time delivery, customer-centric services, and competitive pricing, making them a preferred partner for numerous clients across multiple sectors and regions. Their adherence to ethical business practices and continuous improvement has garnered them a strong reputation in both domestic and international markets.
Chemical Composition of Stainless Steel 321 / 321h Capillary Tubes
| Element | SS 321 (% by weight) | SS 321H (% by weight) |
|---|---|---|
| Carbon (C) | ≤ 0.08 | 0.04 – 0.10 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 17.0 – 19.0 | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 | 9.0 – 12.0 |
| Titanium (Ti) | ≥ 5 x C, ≤ 0.70 | ≥ 5 x C, ≤ 0.70 |
| Iron (Fe) | Balance | Balance |
With a proven track record as a Stainless Steel 321 / 321h Capillary Tubes exporter in over 30 countries, Sumer Metal Industries ensures global availability, third-party inspection support, and client-specific customization. Our wide export network combined with strict quality standards has made us a preferred choice for SS 321/321htubing worldwide.
Specification of Stainless Steel 321 / 321h Capillary Tubes
| Specification | Details |
|---|---|
| Grade | Stainless Steel 321 / 321H |
| Standards | ASTM A213, ASTM A269, ASTM A632, DIN 17458, EN 10216-5 |
| Manufacturing Type | Seamless, Welded, Cold Drawn |
| Outer Diameter (OD) | 0.25 mm to 8.00 mm |
| Wall Thickness | 0.10 mm to 1.50 mm |
| Length | Custom lengths up to 30 meters or in coil form |
| Surface Finish | Bright Annealed, Polished, Electro-Polished, Pickled |
| Form | Coil, Straight Length, U-Bent, Spool |
| Dimensional Tolerances | As per ASTM standards or customized |
| Hardness | Annealed (Soft) or Hardened on request |
| Temperature Range | Up to 870°C (SS 321), higher resistance for SS 321H |
| End Finish | Plain End, Beveled End, Threaded (as per request) |
| Packaging | Plastic-capped ends, Packed in coils or wooden boxes with proper labeling |
| Applications | Instrumentation, Chemical Industry, Heat Exchangers, Medical Equipment |
| Certifications | ISO 9001:2015, PED, EN 10204 3.1 / 3.2 (upon request) |
🏭 Industry & Application
- ✅ SS 321/321hCapillary Tubes for Medical Industry
- ✅ SS 321/321hCapillary Tubes for Chemical Processing
- ✅ SS 321/321hTubes for Instrumentation Lines
- ✅ Stainless Steel 321 / 321h Capillary Tubes for Gas & Liquid Flow
- ✅ SS 321/321hTubes for Heat Exchangers
❓ Frequently Asked Questions (FAQs)
Q1: What are the applications of Stainless Steel 321/321H Capillary Tubes?
These tubes are used in aerospace, chemical processing, oil & gas, instrumentation, heat exchangers, and high-temperature environments due to their corrosion resistance and strength.
Q2:Does Sumer Metal Industries export SS 321/321H Capillary Tubes internationally?
Yes, they export to Oman, Saudi Arabia, UAE, Qatar, Germany, Spain, Canada, the USA, and several African regions.
Q3: What is the difference between SS 321 and SS 321H capillary tubes?
SS 321H contains a higher carbon content than SS 321, offering improved high-temperature strength and creep resistance.
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At Sumer Metal Industries Pvt. Ltd., we follow a zero-defect policy by implementing stringent quality checks, using certified raw materials, and continuously improving our processes to deliver reliable and consistent tubing solutions
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