AISI 4140 Round Bar Exporter in India

AISI 4140 Round Bar — Overview

As a specialty alloy & carbon steel round bar exporter in India, JPS Metal & Alloys stocks AISI 4140 ex-Mumbai for both domestic supply and export via Nhava Sheva (JNPT). One of the most widely stocked alloy steel grades — a good balance of strength, toughness and machinability for general shafting.

International Equivalents

Standard	Designation
DIN / W.Nr.	42CrMo4 / 1.7225
JIS	SCM440
BS	EN19
ASTM / UNS	ASTM A29, UNS G41400

Chemical Composition

Element	Range
C	0.38–0.43%
Cr	0.80–1.10%
Mo	0.15–0.25%
Mn	0.75–1.00%

Mechanical Properties

Property	Value
Tensile Strength	655–1020 MPa
Hardness	197–302 HB

Typical Applications

Hydraulic cylinder rodsGears & shaftsOilfield tool components

Frequently Asked Questions

Who is a reliable AISI 4140 round bar exporter in India?

JPS Metal & Alloys, based in Mumbai, is a stockist and exporter of AISI 4140 round bar manufactured to ASTM A29, UNS G41400. Every consignment ships with a full EN 10204 3.1 Mill Test Certificate and, on request, third-party inspection.

What is AISI 4140 round bar used for?

Typical applications include Hydraulic cylinder rods, Gears & shafts, Oilfield tool components. One of the most widely stocked alloy steel grades — a good balance of strength, toughness and machinability for general shafting.

What sizes of AISI 4140 round bar are available ex-stock?

We stock AISI 4140 in diameters from 10mm – 400mm dia, supplied annealed / q&t with black / peeled / ground surface finish, cut to your required length.

What certification comes with AISI 4140 round bar exports?

Every shipment includes an EN 10204 3.1 Mill Test Certificate verified against ASTM A29, UNS G41400, plus Certificate of Origin, packing list and commercial invoice for export consignments.