Sankrail Industrial Park, Dhulagari, Howrah – 711302 info@hrsteel.com
RDSO · POWERGRID · BIS · NABL · ISO 9001 +91 98310 00031
COMPANY PROFILE 2026

Our Infrastructure

Two units at Sankrail, Howrah take wire rod through forging, threading, heat treatment, coating and NABL testing without the material ever leaving our gates. We work to RDSO, POWERGRID and BIS standards, because every joint we make carries the nation's traffic and power.

02units at Sankrail,
Howrah
09All nine steps
in-house
12,000 MTfasteners per
year
NABLISO/IEC
17025:2017

Everything under
one roof.

One factory controls all nine steps, so no problem is handed to someone else.

Steel wire rod stored at H R Steel's Sankrail works1 · RM STORAGE
01

Raw material storage

Wire rod and bar stored by SAE grade and colour-coded (1008 to 4140 / 41Cr4), every bar marked with its heat number.

every bar marked with its heat number
In-house testing and laboratory equipment2 · TESTING
02

Testing

German spectrometer checks every heat against the mill certificate before it is released to production.

German spectrometer
Industrial wire processing and wire drawing line3 · WIRE PROCESSING
03

Wire processing

Pickling, phosphating and wire drawing in Unit II, so the forging line never waits on outside job-work.

wire drawing in Unit II
Annealing furnace installed in the manufacturing facility4 · ANNEALING
04

Annealing

Our own annealing furnace prepares wire for cold forging of high-strength grades.

cold forging of high-strength grades
Green multi-station cold forging machinery on the shop floor5 · FORGING · UNIT II
05

Forging

Bolts cold forged to M30 and hot forged to M48; heavy hex nuts cold forged to M27 and hex nuts to M30 on National and San Shing formers.

National and San Shing formers
Thread rolling process at H R Steel6 · THREAD ROLLING M80
06

Rolling

Hydraulic thread rolling up to M80, so the grain follows the thread form.

Hydraulic thread rolling up to M80
Industrial nut-forming and tapping equipment7 · NUT TAPPING
07

Tapping

Nut tapping lines for standard and heavy hex nuts, with gauges checked every shift.

gauges checked every shift
Heat treatment furnace in operation8 · HARDEN & TEMPER
08

Heat treatment

Continuous hardening and tempering line plus shaker-hearth, rotary and pit furnaces, every batch logged against its heat number.

every batch logged against its heat number
Hot-dip galvanizing bath with industrial workers9 · GALVANIZING BATH
09

Galvanizing

Hot-dip galvanizing 25 MT/day in-house, with zinc phosphating 15 MT/day and zinc plating 10 MT/day.

Hot-dip galvanizing 25 MT/day in-house

One number, start to finish. Heat number on the rod, the route card, the test report and the box.

Traceability · wire rod to wagon
H R Steel NABL-accredited laboratory and testing equipmentHRS NABL-ACCREDITED LABORATORY · UTM, HARDNESS, IMPACT, PROFILE PROJECTOR

Tested in-house.
Accredited by NABL.

Every lot is tensile, proof-load and hardness tested in our own NABL lab, and traced by heat number from wire rod to carton.

40 TUNIVERSAL TESTING MACHINE
TC-17131NABL · ISO/IEC 17025:2017
100%LOTS TESTED BEFORE DISPATCH
Explore quality certifications
COLD-FORGED HEAVY HEX NUTSM27
THREAD ROLLINGM80
HOT-DIP GALVANIZING25 MT/day
ZINC PHOSPHATING15 MT/day
ZINC PLATING10 MT/day

It starts with the steel.
Every bar knows its heat.

Wire rod and bar come only from integrated steel mills with mill test certificates. On arrival every bar end is colour-coded by grade and marked with its heat number, and our spectrometer checks the chemistry against the certificate before anything goes to the formers. That heat number follows the lot through forging, heat treatment, coating and testing, onto the tag on every bag and box.

  1. 01COLOUR-CODED ROD

    Bar ends painted by grade

  2. 02HEAT NUMBER MARKED

    Heat number written on every bar

  3. 03IN-PROCESS CHECKS

    From wire rod to wagon

  4. 04LAB REPORT PER LOT

    Every lot is tensile, proof-load and hardness tested in our own NABL lab

  5. 05TAGGED PACKING

    onto the tag on every bag and box

  6. 06THIRD-PARTY INSPECTION

    Inspected and passed by

Company Profile
2026

COMPANY PROFILE 2026 · BOLTS · NUTS · WASHERS · LOCK BOLTS · STUDS · SPECIALS

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We'll bring
the fastener.

A dedicated R&D department, production team, sales and support team and full supply-chain infrastructure, so what we promise at enquiry is what arrives at your site.