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Black Malleable Screw Cast Iron Pipe Fitting

Updated 2026-11-04 · Markdown version

Model no. 21.3mm-609.6mm

US$660.00 – 840.00 / ton

MOQ 1 ton · Final price confirmed in your quote

Material: Carbon Steel
Surface Treatment: Black
Standard: ASTM A53,A500,A252,A795,BS1387-85,GB/T3091,ISO R65
Tolerance: +-1-5%
Length: 3-12m
Grade: a,B,Grade 250,Grade 350
Surface: Oil, Black, Varnish, Hot Dipped Galvanized,Pre Ga

Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Model NO.	21.3mm-609.6mm
Type	Welded
Technique	ERW
Material	Carbon Steel
Surface Treatment	Black
Usage	Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section Shape	Round
Standard	ASTM A53,A500,A252,A795,BS1387-85,GB/T3091,ISO R65
End of Pipe	Plain/Be/Thread/Groove
W.T	1.0-20mm
Payment	at Sight L/C,30% T/T
Certificate	ISO9001
Tolerance	+-1-5%
Section	Round
Length	3-12m
Main Use	Scaffolding Pipe, Structure Pipe, Fence/Door Pipe,
Alloy or Not	Non-Alloy
Grade	a,B,Grade 250,Grade 350
Trade Term	Fob/CFR/CIF
Surface	Oil, Black, Varnish, Hot Dipped Galvanized,Pre Ga
Transport Package	with Plastic Tarpaulin
Specification	19.05-660mm
Origin	Tianjin of China
HS Code	73063090
Production Capacity	500000
Customization	Available
After-sales Service	3month
Warranty	1year
ASTM A53	Standard Specification for pipe, steel, black and hot-dipped, Zinc-Coated, Welded, and Seamless. ASTM A53 steel pipe covers seamless and welded black and hot-dipped galvanized steel pipe in DN6-DN650, ASTM A53 carbon steel pipe may be furnished in type F, Type E and Type S. grade including of grade A and grade B.
Category	Other Machine & Custom Screws

Description

Black Malleable Screw Cast Iron Pipe Fitting is part of our other machine & custom screws range (Screws).

Key details

Type: Welded
Standard: ASTM A53,A500,A252,A795,BS1387-85,GB/T3091,ISO R65
Material: Carbon Steel
Grade: a,B,Grade 250,Grade 350
Length: 3-12m
Surface Treatment: Black
Technique: ERW
Section Shape: Round

Available configurations include material, surface treatment, standard, tolerance and length. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 ton at US$660.00 – 840.00 per ton. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Black Malleable Screw Cast Iron Pipe Fitting?

The listed minimum order is 1 ton, at US$660.00 – 840.00 per ton. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Black Malleable Screw Cast Iron Pipe Fitting?

Type: Welded; Standard: ASTM A53,A500,A252,A795,BS1387-85,GB/T3091,ISO R65; Material: Carbon Steel; Grade: a,B,Grade 250,Grade 350; Length: 3-12m; Surface Treatment: Black. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, surface treatment, standard, tolerance and length. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other other machine & custom screws are available?

The Other Machine & Custom Screws category lists 14,058 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

Request a quote for this product

US$660.00 – 840.00MOQ 1 tonGet a quote WA