What is the warranty or after-sales service?

We provide one-stop service including OEM, customized machining, primer coating, and complete material testing for quality control.

Th Flanges

Name: GOST 33259-15 31803 32750 Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
Brand: Maanshan Kingrail Technology Co., Ltd.
SKU: 2114932422

Anhui, ChinaMaanshan Kingrail Technology Co., Ltd.

US$1.00-100.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Standard

ANSI, DIN, GB, JIS, GOST, BSW

Type

Welding Flange

Model NO.

Th Flanges

Material

Stainless Steel

Structure

Round

Connection

Flanged

Sealing Surface

Manufacturing Way

Forging

Flange Type

Blind/ Slip on/ Welding Neck/Thread/Socket Weldin

Technics

Forged

Process

Forging+Machining+Heating Treatment

Customized Support

OEM/ ODM

Standards

ASME,En,GB/T,API,Nace

Surface

Polishing Treatment

Pressure

Class150/300/600/9001500/2500

Face

FF,RF,Rtj,GF,TF

Equipment

CNC Machining Certer

Application

Pipeline Connection, Oil & Gas, Water Treatment

Logo

Customized Logo Acceptable

Tolerance

0.005mm

Color

Black/Yellow/Anti-Rust Oil Customized Colors

Service

One Stop Service. Machining-Assembly

Purity

High Purity

Transport Package

Wooden Case, Pallet

Specification

Hot Forging

Trademark

King Steel

Origin

China

HS Code

8482109000

Production Capacity

5000000PCS/Year

Key features

High Pressure Resistance: Forged steel flanges offer superior precision and performance for high-pressure environments.

Wide Material Selection: Available in Carbon Steel, Alloy Steel, and Stainless Steel meeting ASTM and ASME standards.

Multiple Pressure Classes: Supports Class 150, 300, 600, 900, 1500, and 2500 pressure ratings.

Customizable Colors: Color options include Black, Yellow, and Anti-Rust Oil customized colors.

OEM/ODM Support: Provides OEM and ODM customized support for flange types and technical requirements.

Strict Quality Control: Includes complete material testing, machining, and quality control processes.

Versatile Applications: Suitable for petroleum, chemical, power, shipbuilding, and water treatment industries.

Multiple Connection Types: Offers Welding, Socket Weld, Threaded, and Threaded Flange connection options.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Maanshan Kingrail Technology Co., Ltd.

Anhui, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤2.43h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company with business activities covering metal-product research and development, technical services, key systems and components, railway rolling stock parts, and related equipment sales. It reports ISO 9000 and ISO 9001 certification, OEM service for well-known brands, ODM capability, and broad customization options. Reported production capacity includes wheels, track materials, and metal products, while quality-control and traceability evidence is incomplete. The supplier has one R&D engineer, no new products reported in the past year, no available SDK, and no R&D audit documentation. After-sales service is included in the R&D engineer’s responsibilities, but documented complaint-handling and corrective-action records are absent. No monetary or financial figures are included in this assessment; the available records only identify financial information for three historical years. Overseas service infrastructure is limited, with no overseas agents, branches,...

Supplier typeThe supplier is explicitly classified as a trading company. Its stated activities include metal-product R&D and technical services, as well as sales of key systems, railway rolling stock parts, and related equipment.

CertificationsThe supplier reports ISO 9000 and ISO 9001 management-system certifications. However, quality assurance status is unspecified, and approved-supplier, corrective-action, and complaint-handling records are incomplete or undocumented.

Production capacityReported annual capacity includes 20,000 wheels, 10,000 tons of track materials, and 800 tons of metal products, supported by 11–20 quality-control staff and ISO certifications. However, the supplier states it has no in-stock service capacity, while raw-material traceability and outsourcing controls remain unknown.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization, and also provides ODM services. These statements directly support broad customization capability.

Product Q&A

Q:What materials are available for forged flanges?

We provide Carbon Steel (ASTM A105, A694), Alloy Steel (ASTM A182 F5, F9, etc.), and Stainless Steel (ASTM A182 F304, F316).

Q:What pressure classes do you support?

Our forged flanges support Class 150, 300, 600, 900, 1500, and 2500 pressure ratings.

Q:Can you customize the flange type and color?

Yes, we offer OEM/ODM support. Customizable flange types include Blind, Slip on, Welding Neck, etc. Colors can be customized to Black, Yellow, or Anti-Rust Oil.

Q:What is the typical lead time for orders?

The average lead time is 1-3 months for both peak and off-season periods.

Q:What surface treatments are available?

We offer shot blasting, black painting, rust-proof oil, transparent oil, and galvanizing.