Mild Steel SS400 Flanges

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Mild Steel SS400 Flange
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What is Mild Steel SS400 Flanges

Mild Steel SS400 flanges

Mild Steel SS400 flanges are excellent as its chemical properties help us increase the corrosion resistant, robust construction and accurate dimensions.

JIS SS400 is a hot rolled steel grade. Components of which are use for general structural applications. Hence, the JIS SS400 flange is use across structural applications that require better tensile properties.

JIS Standard Flange Supplier

JIS standard flanges are Japanese standard and it is the one where thousands of dimensions are include like diameter of hub at small end. Diameter of hub at large end and many other factors are provided.

The Japanese standard specification, JIS B2220 flanges,comprises high-quality carbons steel or stainless steel and available in different types like the flange. One can also find JIS B2220 flange made up of carbon steel. Available in various pressure grades 2K, 5K, 10K, 16K, 20K, 30K.

Supply Range of JIS Forged Steel Flanges

Standard

 JIS B2220

Diameter

 DN15 — DN1500

Schedule

 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K

Seal Face

 Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF)

Mild Steel SS400 Flanges specification

Specifications

 Mild Steel SS400 Flanges

Standard

 JIS B2220

Design

 SOP, BL, SOH,SW,WN,LJ,TR,IT

Size

 DN10~DN1500

Puresure

 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K

Material

 SS400 Carbon Steel, SUS304 & SUS316 Stainless Steel

Packing

 Plywood Pallet And Plywood Box

Coating

 Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized

Face Type

 RTJ/ RF/ FF/MFM/TG

Forging Methods

 Forging & Casting, Rolling & Cutting

Flange Test

 Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector

Supporting Material

 Gasket/ Ring Joint/ Flange Bolts

Production Technique

 Forged/ Heat treated and machined

SS400 Flanges Chemical Composition

Element Weight %
Carbon 0.08 – 0.15
Silicon 0.15 – 0.50
Chromium 2.00 – 2.50
Phosphorus 0.025 max *
Sulphur 0.025 max *
Nickel 0.5 max
Manganese 0.30 – 0.60
Molybdenum 0.90 – 1.10

Mild Steel SS400 Flanges Mechanical Properties

Property Values
0.2 % Yield Strength * 75 min Ksi (517 Mpa)
Ultimate Tensile Strength * 95 min Ksi (655 Mpa)
Reduction of Area * 35 % min
Charpy Impact Toughness 42 mean/ 33 min J at –18o C
Elongation * 17 % min
Hardness 197 – 237 BHN (75 Ksi min)
Aside from having good tensile strength, these components are tough, making them very durable. Ideally, a combination of these characteristics coupled with its good weldability makes the SS400 flange fit to be used across different structural applications in industries like shipping, or building. The alloy is carbon steel, whose composition of both carbons as well as manganese is not identified in this Japanese standard. Depending on the thickness of the components, the tensile strength of this alloy is value between 400 Mpa to about 510 Mpa.
In marine engineering, the carbon steel SS400 flanges are components that can be use in low temperature seawater. So along with being use at high temperatures, the mechanical properties remain good even in cold environments. The other impressive property of the Mild Steel SS400 Flange is its dimensional stability. Which is good when exposed to elevated pressure levels.

JIS B2220 Flange Dimensions

JIS standard flange dimensions

JIS standard flange dimensions

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