NXF USN A36/DIN17100/EN 10025-2/JIS G3101 Diameter 1-100mm Grade 100-450HV Color Zinc-plated Carbon Steel Spiral Wound Gasket

2026-09-19 20:20 NXF GROUP
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Product Description

A36 Introduction

ASTM A36 is the most commonly used mild and hot-rolled steel. It has excellent welding properties and is suitable for
grinding,punching, tapping, drilling and machining processes. Yield strength of ASTM A36 is less than that of cold roll C1018,thus enabling ASTM A36 to bend more readily than C1018. Normally, larger diameters in ASTM A36 are not produced since C1018 hot roll rounds are used.

Color Zinc-plated Carbon Steel Spiral Wound Gasket Introduction

Color Zinc-plated Carbon Steel Spiral Wound Gasket is a robust semi-metallic sealing component widely used for flange sealing in industrial piping and equipment systems. It is manufactured by alternating winding of color zinc-plated carbon steel metal strips and flexible non-metallic filler strips. The color zinc plating treatment on the carbon steel strip delivers excellent rust resistance and surface protection, effectively preventing oxidation and corrosion during storage and service.
This gasket combines the high mechanical strength of carbon steel and the good compressibility and resilience of the filler material. It can maintain stable sealing performance under fluctuating pressure and temperature conditions, compensating for flange surface unevenness and minor separation. Available in multiple standard sizes to match DIN, ASME and ISO flange specifications.
It is extensively applied in petrochemical, power generation, boiler, water treatment, pipeline engineering and general industrial equipment, serving as a reliable sealing solution for mediums such as steam, oil, gas and water.
Color Zinc-plated Carbon Steel Spiral Wound Gasket Drawing
A36 Chemical Composition And Mechanical Properties
Factory and Product Pictures
Color Zinc-plated Carbon Steel Spiral Wound Gasket Product Pictures
A36 PMI spectral testing proves
Video of a customer visiting us


Product processing

Color Zinc-plated Carbon Steel Spiral Wound Gasket Product Processing

1.Raw Material Inspection & Preparation:
Adopt high-quality carbon steel strips and premium flexible non-metallic filler materials that comply with international sealing industry standards. Strictly inspect the thickness uniformity, surface flatness, tensile strength and material toughness of carbon steel strips, and check the high-temperature resistance and compression resilience of non-metallic fillers. Eliminate defective materials with cracks, impurities and uneven texture. All qualified raw materials are sorted and prepared according to gasket specifications to ensure stable foundation for subsequent winding and forming.

2.Steel Strip Surface Galvanizing Treatment:
Conduct professional color zinc-plating process on the qualified carbon steel strips. Through degreasing, pickling, activation, electro-galvanizing and chromate passivation procedures, a uniform and dense color zinc protective layer is formed on the steel strip surface. This treatment significantly improves anti-rust, anti-oxidation and anti-corrosion performance, effectively avoiding surface discoloration and metal oxidation during long-term storage and industrial service.

3.Alternate Spiral Winding & Integral Forming:
Adopt precision automatic winding equipment to perform staggered alternate winding of color zinc-plated carbon steel strips and soft non-metallic fillers. Strictly control winding tension, lap gap and layer uniformity to ensure compact internal structure, uniform density and stable overall flatness. The composite winding structure perfectly combines the high strength of metal material and the excellent compression resilience of non-metallic material, realizing reliable basic sealing performance.

4.Shaping, Trimming & Ring Calibration:
Perform integral cold pressing and shaping on the wound semi-finished gaskets to stabilize overall thickness and structural compactness. Trim redundant edges and irregular parts to ensure neat inner and outer circles without burrs or protrusions. Conduct precision roundness and flatness calibration to guarantee standard geometric dimensions, enabling perfect fitting and contact with various standard flange surfaces.

5.Pressure Testing & Full Quality Inspection:
Carry out professional compression resilience test, tightness simulation test and structural stability test to verify sealing performance under rated temperature and pressure conditions. Implement full-range quality inspection including dimensional tolerance detection, surface plating quality check, winding uniformity inspection, flatness test and appearance defect screening. All products are strictly verified to meet industrial pipeline sealing standards.

6.Sorting, Packaging & Warehousing:
Classify and label qualified color zinc-plated carbon steel spiral wound gaskets according to size and specification standards. Adopt dust-proof, moisture-proof and anti-extrusion independent packaging to protect the plating layer and winding structure from damage and deformation. Finished products are sorted and stored in standardized warehouses and delivered after strict final inspection.

Our NXF GROUP advantage as follow

1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
Packing & Delivery
Packing
Delivery
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories.Established in1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." Our advantage:3S Service(Small Quantity/Short Time/Special Material)
Certification
FAQ
1.Who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.

2.How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.What can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products

4.Why should you buy from us not from other suppliers?
Our advantage:
1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.

5.What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian



Phone
+8613917160311
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+8613917160311
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Email
info@nxf-group.com
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