SS 431 Round Bar Exporter in India

SS 431 Round Bar — Overview

As a specialty stainless steel round bar exporter in India, JPS Metal & Alloys stocks SS 431 ex-Mumbai for both domestic supply and export via Nhava Sheva (JNPT). Nickel addition to a martensitic 12-17% Cr base improves toughness over straight 410/420, useful where high strength must be paired with impact resistance.

International Equivalents

Standard	Designation
DIN / W.Nr.	1.4057
JIS	SUS431
ASTM / UNS	ASTM A276, UNS S43100

Chemical Composition

Element	Range
Cr	15.0–17.0%
Ni	1.25–2.50%
C	0.20% max

Mechanical Properties

Property	Value
Tensile Strength	860 MPa min
Yield Strength	655 MPa min
Hardness	375 HB max

Typical Applications

Pump & valve shaftsMarine propeller shaftsHigh-strength fasteners

Frequently Asked Questions

Who is a reliable SS 431 round bar exporter in India?

JPS Metal & Alloys, based in Mumbai, is a stockist and exporter of SS 431 round bar manufactured to ASTM A276, UNS S43100. Every consignment ships with a full EN 10204 3.1 Mill Test Certificate and, on request, third-party inspection.

What is SS 431 round bar used for?

Typical applications include Pump & valve shafts, Marine propeller shafts, High-strength fasteners. Nickel addition to a martensitic 12-17% Cr base improves toughness over straight 410/420, useful where high strength must be paired with impact resistance.

What sizes of SS 431 round bar are available ex-stock?

We stock SS 431 in diameters from 8mm – 200mm dia, supplied hardened & tempered with peeled / ground surface finish, cut to your required length.

What certification comes with SS 431 round bar exports?

Every shipment includes an EN 10204 3.1 Mill Test Certificate verified against ASTM A276, UNS S43100, plus Certificate of Origin, packing list and commercial invoice for export consignments.