What sizes are available for the fittings?

Six different sizes are available, specifically T-E ranging from 21.3mm to 60.3mm.

Is specialized labor required for installation?

No, our key clamps are designed for easy use and do not require specialized tradesmen, fire spotters, or welding protection.

Steel Tube Fitting with Malleable Iron Internal Joint

Name: Steel Tube Fitting with Malleable Iron Internal Joint
Brand: Qingdao Hulk Metal Technology Co., Ltd.
SKU: 1920490915

Shandong, ChinaQingdao Hulk Metal Technology Co., Ltd.

US$0.50

1,000 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Standard

ASTM A197;ASTM A153

Material

Malleable Iron

Model NO.

HM K210626

Connection

Male

Surface Treatment

Black, Hot DIP Galv, Double (HDG+Electricplating)

Cert

TUV, ISO, CE

Technic

Casting

Screw Material

Stainless Steel

Standard Surface

Hot-DIP Galvanized

Surface Maintain Time

30-50 Year for HDG

Tensile Strength

>= 350MPa

Elongation

>= 10%

Hardness

Hb<=150

Application

Handrail and Railing

Installation Advantage 1

No Welding, So No Hot Permits Required

Installation Advantage 2

No Threading or Bolting, So No Need Special Tools

Installation Advantage 3

Cost Effective, Only Low Skilled Workers Required

Transport Package

Put in Box Then on Pallet

Specification

T-E(21.3-60.3mm)

Trademark

HM&OEM

Origin

China

Production Capacity

500000/Month

Key features

Malleable Iron Material: Made of ASTM A197 malleable iron for high mechanical strength and elongation.

Corrosion Resistance: Hot-dip galvanized surface treatment meets ASTM A153 for anti-rust and corrosion protection.

No Welding Required: Installation requires no welding, eliminating the need for hot work permits.

No Special Tools Needed: No threading or bolting required, saving on special tool costs.

Multi-Certification: Holds TUV, CE, ISO, UL, FM, and other international safety certifications.

Cost Effective Installation: Requires only low-skilled workers, reducing labor and engineering costs.

Modular Design: Eliminates design costs and allows on-site adaptation or extension.

Long Surface Life: Hot-dip galvanized surface maintains integrity for 30-50 years.

Company profile

High Repeat Buyers ChoiceOEM ServicesManagement CertificationProduct Certification

Qingdao Hulk Metal Technology Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2002-11-01Nearest Port: Qingdao, Shanghai, NningboAverage Response Time: ≤2.73hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier offering 3D software design, ODM, OEM, and multiple customization options. It has five R&D engineers, launched new products during the past year, and provides aluminum die-casting parts. Certifications include ISO9001:2015, ISO45001:2018, ISO14001, and CE. Documented corrective-action and customer-complaint procedures are in place, while quality assurance status and raw-material traceability remain unknown. The supplier reports in-stock capability but lacks overseas warehouses, showrooms, agents or branches, and offline trade-show participation. Its company description states coverage of more than 100 countries and regions, but the overseas-service field separately records zero countries, creating an inconsistency. No financial figures are assessed. Customer evidence includes reported cooperation with many companies globally, but no Fortune 500 cooperation is stated.

Supplier typeThe supplier is explicitly identified as a professional technical supplier and describes itself as serving companies across more than 100 countries and regions. It also states that it can use customer information, samples, and drawings to meet special requirements, supporting its role as a technical and solution-oriented manufacturer.

CertificationsThe supplier holds ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications, and has CE product-compliance certification. These are explicit certifications supporting quality, occupational safety, environmental management, and product compliance.

After-Sales capabilityThe company description explicitly refers to perfect after-sales service. It also has documented corrective and preventive action and customer-complaint procedures with followed records, although the overall quality-assurance status is unknown.

R&D capabilityThe supplier has five R&D engineers, launched new products during the past year, provides 3D software design, and offers ODM services. However, it explicitly has no available SDK, which limits the evidence for broader technical-integration capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, 3D software design, and ODM services. Its request for customer samples and drawings further supports the stated ability to handle customized requirements.

Product Q&A

Q:How can I get your prices of kee clamp?

Please provide your detail inquiry list which including items, surface requirement and estimated order quantity. Then detail quotation will be provided.

Q:Can I have a sample before business start?

Yes, we welcome sample order to test and check our quality. Usually samples are free and you just need to pay the courier cost by FedEx or DHL.

Q:What's about the lead time of order?

Sample order usually need 5-7 days after order confirmation. Mass production order usually need 30-40 days after prepayment received.

Q:What certifications do your products have?

All pipe joint connectors come with TUV, CE, and ISO certificates. We also hold UL, FM, CRN, DVGW, and other international certifications.

Q:What surface treatments are available?

We provide three kinds of standard surface treatments: Raw Rough, Black, and Hot-dip Galvanized. Double coating (HDG+Electricplating) is also available.