Material specification: 1. carbon & low alloy steel;
2. stainless steel;
3. high alloy & wear resist steel;
4. gray iron; ductile iron;
5. malleable iron;
6. alloyed cast iron;
7. aluminum alloy;
8. cooper alloy;
9. zinc alloy

Range of casting weight: 0.50kg-450kg

a.Item: Customized and High Quality Welding Flange with ISO Certificaiton

b.Drawing: as your requirement

c.Surface; anneal,quenching, tempering

d.Material: #45steel, carbon steel, Iron.

e.Product: manhole cover, pipe fitting, flange, machine parts, pump parts, etc.

g.Technology: forging

h.Advantages: Delivery on time, according to the demand for materials

i.Packing: wooden case or as your requirement.

j.Deliverywithin 20 days after receiving last confirm information.

Forging: We can provide forged ring, open-die forging, forged shaft, forged bush, forged shape, drop forging, precision forging, hot-pressed part, upset forging, hot-upset part, forging casting, forged disc, perforated disc.

Heat Treatment: Normalizing
Quenching
Tempering

OUR MACHINING PROCESS :
Occupies an area more than 6,000 square meters
More than 40pcs big CNC lathes Ø500 - Ø1200
Machining center 1400 x 825 x 1000mm 4 axis

Can provide services: turning; milling; grinding; drilling; inserting; broaching; boring; polishing

Surface preparation: passivation; polishing; plating; coating; painting; zinc phosphate; dacrotized / dacromet technology

Quality First,Price Best,Service Foremost!
We assure you of our best services at all times !

Item	Flange
Size	1/2" - 144" DN10-DN3600
Surface treatment	black painted, oil, galvanizing
Shape	All kinds of flange
Material	S235JR, Stainless steel, carbon steel
Heat Treatment	can be as your requirement.
Advantages	Delivery on time, according to the demand for materials
Packing	wooden case or as your requirement.
Delivery	within 30 days after receiving last confirm information.

A custom-forging listing for large welding flanges made to buyer drawings. The source contains conflicting lead-time statements, so schedule acceptance should be explicit.

Procurement specification

Material: S235JR, stainless steel and carbon steel are listed for the flange; the broader capabilities section lists additional ferrous and nonferrous materials.
Dimensions: 1/2–144 in (DN10–DN3600); drawing-based custom work is offered.
Tolerance: No numeric tolerance is stated; the buyer drawing is described as the dimensional basis.
MOQ: Not stated in the source listing; confirm with the supplier.
Lead time: The delivery field says 30 days; the body says both 20 and 30 days after final information is confirmed.

Listing details

Manufacturing method: forging, with turning, milling, grinding, drilling, broaching, boring and polishing listed.
Surface options include black paint, oil and galvanizing.
Packing is listed as a wooden case or buyer requirement.

Buyer checklist

The following items are not verified product claims. Confirm them directly with the supplier before ordering.

Resolve the conflicting 20-day and 30-day statements in the purchase order.
Confirm the exact flange standard and edition, type, facing and pressure class for the mating connection.
Request a dimensioned drawing covering bore, outside diameter, thickness, bolt circle, holes and tolerances.
Confirm the numeric MOQ, unit of sale, sample policy, packing and Incoterm.
Confirm production lead time in writing and state whether it starts after payment, drawing approval or material confirmation.

Related sourcing pages

Company: Weifang Shengao Machinery Co.,Ltd
Country: China (Mainland)
Founded Year: 2006
Address: Subentry Industrial Park, Qingchi St. Office, Hi-Tech Dist, Weifang, Shandong, C
Contact: Anna Song