Size

1/2"-4"

Type

Banded, Beaded, Plain; with rib, or without rib.

Thread Standard

British standard American standards Din standard

Finish

Black, Eclectic Galvanized, Hot Dipped Galvanized, all be antirust treatment

Quality Control

Excellent material, precise angles, good antirust property

Material and Standard

Malleable iron, meet standard ASTM A197

Dimensions

ANSI/ASME B16.3-92/B1.21.1-83

Galv Standard

ASTM A153

Producing Technology

Pattern making -sand casting -heat treatment-surface treatment-machining-packing

Chemical and Physical Properties

Chemical Properties

Physical Properties

C %

Si %

Mn %

P%

S%

Tensile Strength

Elongation

2.4-2.9

1.4-1.9

0.4-0.65

<0.1

<0.2%

≥330 Mpa

≥8%

Hardness: <150HB

Hydraulic Pressure Test:

 3-5Mpa, Working Pressure:1.6Mpa., 100% test before shipment