HRS Ferritic · Certified Supplier & Exporter

Stainless Steel 431 Sheet
AISI 431 Sheet

High Strength Martensitic Grade · Chromium-Nickel Alloy · Superior Toughness & Wear Resistance · Global Supply

ASTM A240 / AISI 431 UNS S43100 EN 1.4057 JIS SUS 431
📋 Table of Contents
1Introduction to SS 431
2Stainless Steel 431 / AISI 431
3Metallurgical Characteristics
4Specifications
5Available Stock
6Types of SS 431 Sheet
7Chemical Properties
8Mechanical Properties
9Pricing List
10Equivalent Grades
11FAQs
HRS Ferritic · SS 431 Sheet Supplier, Stockist & Exporter

Introduction to
Stainless Steel 431 Sheet

HRS Ferritic has a reputation for providing high-performance martensitic and ferritic stainless products to the global market. We are a renowned SS 431 Sheet Supplier, SS 431 Sheet Importer, and AISI 431 Sheet Exporter, ensuring consistency in quality, traceability and compliance sourced from mills certified to international standards.

  • High strength and tensile strength for critical applications
  • Good wear resistance under heavy mechanical loads
  • Moderate corrosion resistance in harsh environments
  • Superior ductility and impact strength after heat treatment
  • Reliable machinability and long service life
  • Preferred for shafts, fasteners and structural components
Stainless Steel 431 Sheet in India
16%Chromium Content
Grade Overview

Stainless Steel 431 Sheet / AISI 431 Sheet

SS 431 is a martensitic stainless alloy containing high levels of chromium and nickel to enhance toughness and resistance to corrosion. It is suitable for applications requiring high strength, good wear resistance and moderate corrosion resistance, with superior ductility and impact strength after heat treatment.

16%
Chromium Content
Ni
Nickel Alloyed
850–1000
Tensile Strength MPa
0.5–100
Thickness Range mm
Composition Analysis

Metallurgical Characteristics & Performance

Each element in SS 431 plays a precise role in delivering exceptional strength, toughness and corrosion performance.

Fe
Iron
Base metal providing strength and structural support.
Cr
Chromium
Enhances corrosion and oxidation resistance by forming a protective passive layer.
Ni
Nickel
Improves toughness and corrosion resistance, distinguishing 431 from other martensitic grades.
C
Carbon
Increases hardness and strength through heat treatment.
Mn
Manganese
Improves toughness and hot working properties.
Si
Silicon
Enhances strength and oxidation resistance at elevated temperatures.
S
Sulfur
Improves machinability (kept controlled to maintain toughness).
Technical Data

Specifications — SS 431 Sheet / AISI 431 Sheet

ASTM A240 · AISI 431 · UNS S43100

Specification Details
ASTM / AISI ASTM A240 / AISI 431 (Plate, Sheet, and Strip)
UNS UNS S43100
EN EN 1.4057
DIN 1.4057
ISO ISO X17CrNi16-2
JIS SUS 431
Thickness Range 0.5 mm to 100 mm
Standard Widths 1000 mm, 1219 mm, 1250 mm, 1500 mm, 1800 mm, 2000 mm, 2500 mm, 3000 mm, 3500 mm, etc
Standard Lengths 2000 mm, 2440 mm, 2500 mm, 3000 mm, 5800 mm, 6000 mm, etc
Surface Finish Hot Rolled (HR), Cold Rolled (CR), Annealed & Pickled (AP)
Supply Condition Solution Annealed
Cutting Methods Plasma, Laser, Waterjet, Oxy Propane
Packaging Bundled, Wooden Plates, Bubble Wrap, Customized
Inventory

Available Stock & Product Forms

🪨

Sheets

High-quality flat sheet products in various thicknesses for industrial applications.

🔩

Pipes

Seamless and welded pipes for high-temperature and corrosion-resistant use.

🔲

M. IPA

Modified Austenitic & Ferritic SS with excellent mechanical properties.

🌀

Coils & Strips

Precision-rolled coils and strips for specialized forming operations.

🧪

Chromium (Cr)

15.0–17.0% — Core element for corrosion and oxidation resistance.

✨

Nickel (Ni)

1.25–2.50% — Improves toughness and corrosion resistance.

⚫

Carbon (C)

0.12–0.20% — Enables hardening and high strength through heat treatment.

⚖️

Iron (Fe)

Balance — Forms the main structure providing overall strength.

💪

Tensile Strength

850–1000 MPa — Exceptional for high-load structural applications.

🎯

Yield Strength

650 MPa (min) — Consistent properties for demanding applications.

📏

Elongation

15–20% — Good ductility after heat treatment.

🔬

Hardness

250–350 HB — High hardness for wear-resistant applications.

Product Range

Types of Stainless Steel 431 Sheet

We maintain ready stock of multiple finishes and sizes as a reliable SS 431 Sheet Stockist.

Hot Rolled SS 431 Sheet
Cold Rolled SS 431 Sheet
SS 431 Sheet, Annealed
Tempered SS 431 Sheet
Polished SS 431 Sheet
Application Sectors

Industries We Serve

Sugar
Sugar Industry
Global cane and beet processing requiring thermal endurance.
Power
Power Industry
Electricity generation and distribution systems.
Ship Building
Ship Building
Marine propulsion and exhaust components.
Mechanical
Mechanical & Plant Engineering
Industrial machinery design solutions.
Food
Food, Beverage & Dairy
Processed food manufacturing environments.
Oil Gas
Oil & Gas Plant
Refinery furnace units and burner assemblies.
Chemical Composition

Chemical Properties of SS 431 Sheet / AISI 431 Sheet

The chromium-nickel combination in SS 431 forms a robust passive layer, delivering superior corrosion resistance and strength after heat treatment.

Element Percentage (%)
Carbon (C) 0.12 – 0.20
Chromium (Cr) 15.0 – 17.0
Nickel (Ni) 1.25 – 2.50
Manganese (Mn) ≤ 1.00
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.040
Sulfur (S) ≤ 0.030
Performance Data

Mechanical Properties of SS 431 Sheet

850–1000
Tensile Strength
MPa — Exceptional for high-load structural applications
650
Yield Strength
MPa (min) — Ideal for demanding engineering applications
15–20%
Elongation
Good ductility after heat treatment
250–350
Hardness
HB — High hardness for wear-resistant applications
High
Impact Strength
After tempering — suitable for dynamic and fatigue loads
Cost Information

Price List for SS 431 Sheet / AISI 431 Sheet

Price Factors

What affects the price?

  • Raw material cost (Chromium & Nickel)
  • Dimensions and thickness of sheets
  • Surface finishing and heat treatment
  • Import duties and market demand
  • Volume of orders and delivery location
Get Pricing Today
Get A Free Quote!
Request a quote for the best SS 431 sheets at the best price!
📧 info@hrsferritic.com
International Standards

Equivalent Grades for SS 431 Sheet

SS 431 is recognized across all major global standards with equivalent metallurgical designations.

Standard / Country Grade / Designation
AISI (USA) 431
SAE (USA) 431
UNS (USA) S43100
EN (Europe) 1.4057
EN Name X17CrNi16-2
DIN (Germany) X17CrNi16-2
BS (United Kingdom) 431S29
JIS (Japan) SUS 431
ISO X17CrNi16-2
AFNOR (France) Z15CN16-02
UNI (Italy) X17CrNi16-2
GOST (Russia) 14Х17Н2
SS (Sweden) 2321
KS (Korea) STS 431
IS (India) X17CrNi16-2
📦
Ready Stock & Product Forms
  • Flat Products: Precision sheets, heavy plates, shim sheets
  • Coils & Strips: Slitting coils, perforated coils, thin foils from 0.05 mm
  • Speciality Forms: Circles, rings, custom-cut blanks, chequered (tread) plates
  • Edge Conditions: Mill edge, slit edge, round edge, square edge
🏭
Quality Assurance & Global Logistics
  • Testing: PMI, Ultrasonic Testing (UT), Radiography (RT), corrosion testing
  • Certification: EN 10204 3.1 / 3.2, NACE compliance (on request)
  • Global Supply: USA, UAE, Saudi Arabia, Singapore, Indonesia, Europe
  • Export Packaging: ISPM-15 fumigated wooden crates, shrink-wrapped & moisture-protected
Use Cases

SS 431 Sheet / AISI 431 Sheet: Key Applications

🌾 Fertilizer Industry
Pressure-bearing gear, shafts and conveyors exposed to high mechanical loads and corrosive chemicals.
🧪 Chemical Processing
Pump shafts, valve bodies, agitators and reactor components demanding strength and moderate corrosion resistance.
✈️ Aerospace
Landing gear components, structural brackets, fasteners and actuator components under dynamic and fatigue loads.
⛽ Oil & Gas
High-pressure equipment, drilling tools, valve stems and pump components.
💊 Pharmaceuticals
Machine parts, equipment shafts and frames requiring durability and resistance to cleaning.
🏗️ Construction & Infrastructure
Fasteners, anchors and industrial infrastructure supports.
⚡ Electric Sector & EV Batteries
Mounting brackets for motor housings and battery enclosures requiring strength and thermal stability.
🚗 Automotive
Transmission parts, drive shafts and axles requiring high strength and wear resistance.
Why HRS Ferritic

Why Choose HRS Ferritic for SS 431 Sheets?

HRS Ferritic's commitment is to deliver stainless steel products of the highest quality that meet international standards. We provide a high-quality service with strong logistics and technical expertise. Contact us for the best SS 431 sheets at the lowest price today!

Trusted SS 431 Sheet Supplier & Stockist
Only certified and reliable manufacturers
Large inventory of custom sizes and shapes
Price competitiveness and on-time delivery
Strict quality control and full documentation
EN 10204 3.1 / 3.2 certification
Strong logistics and technical expertise
Supply to 20+ countries worldwide
🇮🇳

Cities We Supply In India

New Delhi · Ahmedabad · Jaipur · Surat · Salem · Gandhinagar · Varanasi · Haldia · Bhiwandi · Tiruppur · Jamnagar · Thiruvananthapuram · Rajahmundry · Visakhapatnam · Bhubaneswar · Vijaywada · Rajkot · Bharuch · Coimbatore · Nagpur · Raipur · Cochin · Ludhiana · Panipat · Durgapur · Agra · Indore · Kuala Lumpur · Al Jubail · Pimpri-Chinchwad · Sharjah · Karachi · Chandigarh · Bogota · Muscat · Madrid · Tehran · Granada · Jakarta · Los Angeles · Rio de Janeiro · Melbourne · Cairo · New York · Busan · Milan · Montreal · Singapore · Sydney · Dubai · Lagos · Gurgaon · Port-of-Spain · Hong Kong · Navi Mumbai · Secunderabad · Bangkok · Aberdeen · Bhopal · Atyrau · Caracas · Jamshedpur · Thane · Faridabad · Ahvaz · Ahmedabad · Hanoi · Bengaluru · Dallas · Moscow · Surat · Riyadh · Rajkot · Al Khobar · Hyderabad · Haryana · Ernakulam · Gimhae-si · Algiers · Thiruvananthapuram · Brisbane · Calgary · Mumbai · Chennai · Courbevoie · Toronto · Vung Tau · Ankara · Doha · Nagpur · Howrah · Ranchi · Perth · Noida · Houston · Kolkata · Chiyoda · Mexico City · Edmonton. Geoje-si · Abu Dhabi · Santiago · New Delhi · Colombo · Ludhiana · Lahore · Coimbatore · Ho Chi Minh City · Manama · Ulsan · London · Visakhapatnam · Jaipur · Kuwait City · Seoul · Istanbul · Pune · Baroda · Kanpur · La Victoria · Jeddah · Dammam · Petaling Jaya · Nashik · Vadodara ·jamnagar ·hazira · jubail industrial city · Ajman · Capetown · San Francisco · sao paulo · Barcelona · Ahmedi · Muscat · Madrid · Birmingham · Johannesburg.
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Countries We Export To

Saudi Arabia · Qatar · Canada · Sri Lanka · Iran · Nigeria · Bangladesh · Oman · UAE · Turkey · Kuwait · Venezuela · Africa · Singapore · Netherlands · United Kingdom · Mexico · Malaysia · United States · Australia · Japan Saudi Arabia · Iran · Iraq · UAE · Qatar · Bahrain · Oman · Kuwait · Turkey · Yemen · Syria · Jordan · Cyprus · Nigeria · Algeria · Angola · South Africa · Libya · Egypt · Sudan · Equatorial Guinea · The Republic Of Congo · Gabon · USA · Canada · Mexico · Panama · Costa Rica · Puerto Rica · Trinidad And Tobago · Jamaica · Bahamas · Denmark · Russia · Norway · Germany · France · Italy · Uk · Spain · Ukraine · Netherland · Belgium · Greece · Czech Republic · Portugal · Hungary · Albania · Austria · Switzerland · Slovakia · Finland · Ireland · Croatia · Slovenia · Malta · India · Singapore · Malaysia · Indonesia · Thailand · Vietnam · South Korea · Japan · Sri Lanka · Maldives · Bangladesh · Myanmar · Taiwan · Cambodia · Argentina · Bolivia · Brazil · Chile · Venezuela · Colombia · Ecuador · Guyana · Paraguay · Uruguay · New Zealand · Romania · Puerto Rico · Nepal · Kenya · Afghanistan · Lithuania · Belarus · Zimbabwe · Israel · Azerbaijan · Poland · Australia · Morocco · Philippines.
Support

Frequently Asked Questions

Quick answers to common queries about Stainless Steel 431 Sheet.

It is a martensitic stainless steel sheet known for high strength and good corrosion resistance, containing chromium and nickel for enhanced toughness.
Yes, it can be hardened and strengthened through heat treatment, delivering superior ductility and impact strength after tempering.
It is used in shafts, fasteners, marine parts, structural components, landing gear, transmission parts and high-pressure equipment.
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