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SS 17-4 PH Threaded Rods Manufacturer & Exporter in India

Explore SS 17-4 PH Threaded Rods Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-196

Min Temp

870

Max Temp

🌡

870

Suitable for continuous service up to approximately 870°C under typical operating conditions.

⚡

620

Typical tensile strength around 620 MPa depending on product form and heat treatment.

🛡

Very Good

Very Good corrosion resistance in a wide range of industrial environments.

⚖

8

Typical density is approximately 8.0 g/cm³.

Product Overview

What are SS 17-4 PH Threaded Rods?

SS 17-4 PH threaded rods are high-strength precipitation-hardening stainless steel fasteners manufactured from UNS S17400 bar stock, conforming to ASTM A564/A693. The 17-4 PH alloy (also known as Type 630) is martensitic and achieves its mechanical properties through a controlled heat treatment (aging) process, typically in the H900, H1025, or H1150 condition. These threaded rods offer a unique combination of high tensile strength (up to 1310 MPa), moderate corrosion resistance, and excellent toughness, making them ideal for demanding structural and mechanical applications.

SS 17-4 PH threaded rods are widely specified in petrochemical, aerospace, power generation, and marine industries where both strength and corrosion resistance are critical. They are available in metric and inch sizes, fully threaded or custom cut, and are supplied with full traceability and certification.

Quick Specifications

MaterialSS 17-4 PH (Type 630)
UNS NumberS17400
DIN Number1.4542
Material StandardASTM A564 / A693
Threaded Rod Standard (Metric)DIN 976-1 / ISO 898-1
Threaded Rod Standard (Inch)ASME B18.31.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M64 / ¼"-2½"
Tensile Strength930-1310 MPa (H900-H1150)
Yield Strength725-1180 MPa
Hardness28-44 HRC (condition dependent)
? All material certified by NABL-accredited laboratory. PMI and heat treatment certification available on request.

Complete the Fastener Set

Other SS 17-4 PH Fastener Products Available from RealBolt

RealBolt also manufactures the complete SS 17-4 PH fastener range from certified stainless steel bar stock, including SS 17-4 PH Bolts, SS 17-4 PH Nuts, SS 17-4 PH Screws, SS 17-4 PH Washers, and SS 17-4 PH Studs. All SS 17-4 PH fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
SS 17-4 PH Bolts
SS 17-4 PH Nuts
SS 17-4 PH Screws
SS 17-4 PH Washers
SS 17-4 PH Studs

Technical Data

SS 17-4 PH Threaded Rods Dimensions, Sizes & Thread Standards

SS 17-4 PH Threaded Rods are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 976-1 (metric) / ASME B18.31.3 (inch). Custom cut lengths available in 10mm increments. Inch sizes per UNC/UNF thread forms. All SS 17-4 PH threaded rods dimensions are verified against applicable DIN, ISO, and

Threaded Rod Dimensions - Metric (DIN 976-1)

Size (M)Pitch (mm)Core Dia (mm)Length Range (mm)
M61.04.8100-2000
M81.256.6100-2500
M101.58.2100-3000
M121.759.9100-3000
M162.013.6100-4000
M202.517.1100-4000
M243.020.7100-4000
M303.526.1200-6000
M364.031.4200-6000
M424.536.7200-6000
M485.042.0200-6000
M565.549.0300-6000
M646.056.0300-6000

Dimensional & Material Standards

StandardCoversThread
DIN 976-1Threaded rods, metricMetric
ASME B18.31.3Threaded rods, inchUNC/UNF
ISO 898-1Mechanical propertiesMetric
ASTM A193High temp threaded rodsUNC
Material StandardRequirement
ASTM A564Bar/rod - UNS S17400
ASTM A693Plate/strip - 17-4 PH
AMS 5643Aerospace bar/rod
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

SS 17-4 PH Chemical Composition

SS 17-4 PH Threaded Rods are manufactured from an iron-chromium-nickel alloy with chromium (16–26%), nickel (8–28%), and grade-specific molybdenum additions per ASTM and ASTM A193/A194. Chromium content governs the self-healing passive oxide film; molybdenum (2–6%) enhances chloride pitting resistance; and carbon content determines sensitization risk in welded assemblies.

Chemical Composition per ASTM A564

ElementComposition (%)
Chromium (Cr)15.0-17.5
Nickel (Ni)3.0-5.0
Copper (Cu)3.0-5.0
Manganese (Mn)1.0 max
Silicon (Si)1.0 max
Carbon (C)0.07 max
Phosphorus (P)0.04 max
Sulfur (S)0.03 max
Iron (Fe)Balance
Niobium (Nb) + Tantalum (Ta)0.15-0.45
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why SS 17-4 PH Alloy Composition Matters for Threaded Rods

Precipitation Hardening — High Strength
The addition of copper and niobium enables 17-4 PH to be precipitation hardened, achieving tensile strengths up to 1310 MPa in the H900 condition. This makes SS 17-4 PH threaded rods ideal for high-load applications.
Chromium (15–17.5%) — Corrosion Resistance
A high chromium content provides moderate corrosion resistance, superior to most martensitic stainless steels, making these rods suitable for mildly corrosive environments and atmospheric exposure.
Nickel & Copper — Toughness & Ductility
Nickel and copper additions improve toughness and ductility, ensuring that SS 17-4 PH threaded rods maintain their integrity under dynamic and impact loads, even after aging treatments.

Fastener Performance

SS 17-4 PH Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for SS 17-4 PH Threaded Rods per ASTM. SS 17-4 PH threaded rods achieve 620 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Rod SizeH900 Tightening Torque (Nm)H1150 Tightening Torque (Nm)Clamp Load (kN)
M121209045
M1629522095
M20580430150
M241000750220
M3020001500350
M3634002550510
?? Anti-galling: Use molybdenum-based or PTFE anti-seize. Lubricated values assume K=0.16. Avoid over-tightening to prevent thread galling in stainless steels.

Industry Applications

SS 17-4 PH Threaded Rods Applications — Industries & End Uses

SS 17-4 PH Threaded Rods from RealBolt are specified across food and dairy, pharmaceutical, marine, chemical processing, and oil and gas where very good corrosion resistance and 620 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
SS 17-4 PH threaded rods are widely used in aircraft structural assemblies, landing gear, and engine mounts where high strength-to-weight ratio and moderate corrosion resistance are required. AMS 5643 and ASTM A564 compliance ensures reliability in critical aerospace applications.
Threaded rods for pressure vessel closures, heat exchanger tie rods, and reactor supports in environments where both strength and resistance to stress corrosion cracking are essential. 17-4 PH is preferred over standard austenitic grades for high-pressure bolted joints.
Used in steam turbine casings, HRSG ductwork, and generator anchorages where high mechanical strength and dimensional stability at elevated temperatures are required. 17-4 PH maintains properties up to 315°C.
Ideal for marine pump assemblies, deck machinery, and offshore platform supports exposed to salt spray and atmospheric corrosion. 17-4 PH offers better corrosion resistance than carbon steel and higher strength than 316L.

SS 17-4 PH Threaded Rods Standards & International Certifications

SS 17-4 PH Threaded Rods from RealBolt Engineering Industries are manufactured to internationally recognised fastener dimensional standards covering thread form, tolerances, strength grades, and quality requirements. Every batch ships with EN 10204 MTC 3.1/3.2, IS 12427 compliance, ISO 3506 material certification, NACE MR0175, and PMI (XRF) reports — available on request for all orders.
Standards
DIN 975 DIN 976-1 ASME B18.31.2 IS 1367 IS 1364 IS 12427
Certifications
ISO 9001:2015PED 2014/68/EUNABL LabMTC 3.1 / 3.2

Buy SS 17-4 PH Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified SS 17-4 PH Threaded Rods — for competitive pricing, EN 10204 MTC 3.1/3.2 documentation, and fast Mumbai dispatch. Standard sizes are ex-stock; custom dimensions accepted with 2–3 week lead time. Request your quote today.
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Answers for Buyers

SS 17-4 PH Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about SS 17-4 PH Threaded Rods from RealBolt — covering ASTM A193/A194 grades, chloride resistance, temperature limits, sensitization, sizes, and MTC documentation. Contact our technical team directly for project-specific guidance on SS 17-4 PH threaded rods selection and pricing.
SS 17-4 PH threaded rods are available to DIN 976-1 (metric), ASME B18.31.3 (inch), and ISO 898-1 for mechanical properties. Material is supplied per ASTM A564 or AMS 5643 for aerospace. Custom thread forms (UNC, UNF, BSW) and cut lengths are available on request.
Molybdenum-based or PTFE anti-seize is recommended for SS 17-4 PH threaded rods to prevent galling. Avoid copper-based anti-seize in chloride environments. Apply to threads and nut faces, and reduce torque by 15-20% compared to dry assembly.
Yes – SS 17-4 PH offers moderate corrosion resistance, superior to martensitic and most carbon steels. It is suitable for marine atmospheres, washdown, and mildly acidic environments, but not for immersion in seawater or highly aggressive chemicals. For severe corrosion, consider duplex or super austenitic grades.
No MOQ for standard metric/inch sizes in stock (M8-M30). Custom diameters or cut-to-length rods have a 10 kg minimum. Large project orders receive price breaks at 50, 200, and 500 pieces. Sample orders are accepted for qualification.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
  • Hyderabad
  • Jamnagar
  • Jamshedpur
  • Ludhiana
  • Mumbai
  • Mundra
  • Mysuru
  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
  • Rajkot
  • Sanand
  • Surat
  • Thane
  • Tiruppur
  • Vadodara
  • Visakhapatnam

Countries We Export To:

  • US
  • Canada
  • Mexico
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Netherlands
  • Belgium
  • Poland
  • Sweden
  • Norway
  • Denmark
  • Turkey
  • UAE
  • Saudi Arabia
  • Qatar
  • Oman
  • Kuwait
  • Bahrain
  • South Africa
  • Egypt
  • Nigeria
  • Australia
  • New Zealand
  • Singapore
  • Malaysia
  • Indonesia
  • Thailand
  • Vietnam
  • South Korea
  • Japan
  • Brazil