What is the lead time for production?

The average lead time is one month for both peak and off-peak seasons.

Do you offer OEM and ODM services?

Yes, both OEM and ODM services are available for our products.

What standards do your products comply with?

Our products comply with B16.9, MSS-SP-43, B16.11, MSS-SP-97, DIN2605-2617, ASME, ANSI, and other standards.

114.3mm Threaded Screw Cap 4inch Tank Cap 8 Weld Alloy Steel End Cap

Name: 114.3mm Threaded Screw Cap 4inch Tank Cap 8 Weld Alloy Steel End Cap
Brand: SYI Industrial Co., Ltd.
SKU: 1991699045

Shanxi, ChinaSYI Industrial Co., Ltd.

US$9.00

100-299 Pieces

US$7.00

300-999 Pieces

US$5.00

1,000+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Connection

Welding

Shape

Equal

Model NO.

Butt Weld Steel Cap

Head Code

Round

Wall Thickness

Sch5s

Material

Carbon Steel

Technics

Forged

Certification

ASME, ANSI, DIN, JIS, BS, GB, GS

Transport Package

Wooden Box

Specification

custom

Trademark

SYI

Origin

China

Production Capacity

100000PCS/Month

Key features

Wide Material Range: Carbon steel, alloy steel, stainless steel, duplex steel, and non-ferrous alloys available.

Multiple Certification Standards: Compliant with ASME, ANSI, DIN, JIS, BS, GB, GS, B16.9, MSS-SP-43, and more.

Custom Mould Development: New cap moulds can be developed based on customer drawings or samples.

Flexible Surface Treatment: Options include galvanization, painting, or light oil coating.

Comprehensive Quality Testing: Includes composition analysis, tensile test, hydrostatic test, and coating inspection.

Detailed Certificate Provision: MTC EN10204 3.1 and 3.2 certificates available upon request.

Professional Sales Team: 100% of sales staff speak fluent English with over 5 years experience.

Rapid Response Time: Customer questions are guaranteed a response within 24 hours.

Company profile

SYI Industrial Co., Ltd.

Shanxi, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2015-03-19 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤6.11h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummarySYI Group, also identified as SYI Industrial Co., Ltd., is a China-based limited company established in 1999 and operating from Shanxi. Its reported product scope includes castings, forgings, ductile iron pipes and fittings, manhole covers, valves, flanges, aluminum castings, and municipal products. The supplier reports ISO 9001:2015 certification and additional TUV, BSI Kitemark, SGS, BV, FM, and WRAS credentials or listings. Manufacturing evidence includes six production lines, automatic moulding equipment, CNC machining, laboratory facilities, in-house tooling, and 21–30 quality-control staff. It exports to multiple global regions and states that exports represent 90% of sales. Evidence supports production capability and certification strength, while after-sales service, financial credibility, innovation outcomes, customization performance, and customer cases cannot be conclusively assessed from the provided information.

Supplier typeThe supplier is described as a combined business entity and limited company, operating in industrial equipment, components, tools, hardware, metallurgy, machinery, construction, and related sectors. Its stated product range is centered on castings, ductile iron products, manhole and municipal products, valves, flanges, and aluminum parts.

CertificationsThe supplier explicitly reports an ISO 9001:2015 certificate and states that it is TUV, BSI Kitemarked, SGS, BV, FM certified, and WRAS listed. These statements provide direct evidence of multiple quality, product, or compliance credentials, although the specific scope and validity of each additional credential are not detailed.

Production capacityProduction capability is supported by a reported 67,275.83 m² manufacturing plant, six production lines, automatic moulding equipment, CNC machining centers, laboratory facilities, in-house tooling, and 21–30 quality-control staff. The supplier also reports one-month fulfillment timing in both peak and off-peak seasons and serves multiple export regions.

Customization capabilityThe supplier lists OEM industrial castings and maintains in-house pattern and tooling shops, which directly supports the ability to develop or manufacture customer-specific cast components. Nevertheless, no examples, minimum requirements, engineering workflow, or documented customization projects are provided.