In STAINLESS STEEL 17 4 PH BOLTS, the PH denotes that the fasteners have been precipitation hardened, and therefore these are some of the most robust stainless steel BOLTS. Therefore these possess the property of high strength because of the PH present and can be used at high-temperature levels. These are precipitation hardened stainless steel BOLTS. They are widely known for their tensile strength and their property concerning their mechanism, which can help them stand even at 600 degrees Fahrenheit. 17-4 Ph Set BOLTS are an alloy made up of chromium and nickel where the content of chromium is considerably high. These are four times greater strength than the 316 stainless steel fasteners. These fasteners are primarily used in applications where great strength is required. Therefore they are also highly resistant to corrosion. Another advantage here is that they also have niobium in specific amounts. Therefore, these can be easily fabricated, and the fabrication cost of these fasteners is also very low. This is one of the reasons why it is preferred. As the tensile strength is high, there is an option for the users to reduce the cross-sectioning of the structure, which eventually leads to a structure with low weight and eventually reduces the price of the product.

Stainless Steel 17-4ph Bolts

Even though 17-4 Ph SS Nuts are used for corrosion resistance purposes, they are preferred for their tensile strength even if they are moderately corrosion resistant. This in itself proves how strong these stainless steel fasteners are compared to the others available.

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ISO 9001 : 2015


Specifications ASTM B 479 ASME SB 479
Standard DIN, ASTM, BS and all International Standards
Size M3 - M56 | 3/6" to 2" | Custom Sizes
Length 3 mm to 200 mm | Custom Sizes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Form Hex, Threading, Square, Round as per Gauge Etc.
Threads Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or
Threads available UNF, BSW, BSF, METRIC, UNC, or as required
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification Dual Certified As per ASTM & ASME Codes
Test Certificate As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Raw materials Source JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
Packing IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Surface Coating Cadmium Coating
Hot Dipped Galvanizing Coating
Ptfe Coated Nickel Alloy 200 Fasteners
Phosphate Coating
Teflon Coating
Xylon Coating
Zinc Coating

Stainless Steel 17-4ph Bolts

Equivalent Grades

AISI Grade Equivalent
JIS Equivalent
Stainless Steel Notation
EN/DIN Numerical Equivalent
EN/DIN Symbolical Equivalent
17-4 PH
SUS 17-4 PH
SS 17-4 PH
EN 1.4542
UNS S17400

Chemical Composition

Grade C Mn Si P S Cr Mo Ni Cu
17-4 PH 0.070 max 1.00 max 1.00 max 0.040 max 0.030 max 15.0 17.5 3.00 – 5.00 3.00 – 5.00

Mechanical Properties

Grade Shear modulus (GPa) min Poisson's Ratio Thermal expansion co-efficient (@ 21-93°C/69.8-199°F) Rockwell C (HR C) max Brinell (HB)
17-4 PH 77.4 GPa 0.27-0.30 10.8 µm/m°C 363 352

Applications & Operations

We at DC Engineering make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers. DC Engineering is one of the most trusted manufacturers and suppliers of fasteners and bolts which are applicable in various industries.

  • Gas Processing Industries
  • Petrochemical Industries
  • Power Generation Industries
  • Food Processing Industries
  • Chemical Industries
  • Oil & Gas Industries
  • Fertilizers Industries
  • Sugar Industries

Experimentation & Testing

DC Engineering is known for its accurate and perfect dimensions. We at DC engineering thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.

  • Impact Analysis
  • Eddy Current Examining
  • Power Generation Industries
  • Hydrostatic Analysis
  • Prompt Test
  • Positive Material Recognition
  • Large-Scale Test
  • Pitting Protection Test

Packaging & Dispatching

DC Engineering uses the most safest and the most effective ways of packaging for all types of deliveries. We pack our goods in various ways such as:

  • Wooden Boxes
  • Wooden Crates
  • Wooden Pallets
  • Carton Boxes
  • Shrink-Wrapped
  • Bubble Wrap Packing Material
  • Laminated & Metallized Films
  • Wooden or Plastic Crates

Cities We Export

Srinagar, Tamil Nadu, West Bengal, Vijayawada, Maharashtra, Rajkot, Karnataka, Akola, Amravati, Kanpur, Aurangabad, Andhra Pradesh, Saharanpur, Vasai, Varanasi, Faridabad, Bhadreswar, Jhansi, Nashik, Solapur, Surat, Nagpur, Raipur, Haryana, Buxar, Bhavnagar, Pune, Punjab, Banswara, Uttar Pradesh, Tadepalligudem, Manipur,Delhi, Dhanbad, Guntur, Gujarat, Ludhiana, Kalyani, Nagapattinam, Benin, Vadodara, Kerala, Patna, Ulhasnagar, Chhattisgarh, Mizoram, Chennai, Kurnool, Datia, Mangalore, Ambala, Kota, Miryalaguda, Orissa, Mumbai, Nagda, Bikaner, Ballia, Allahabad, Suryapet, Jaipur, Haora, Durgapur, Udgir, Jodhpur, Amritsar, Kalyan, Bangalore, Puducherry, Agra, Kolkata, Tirunelveli, Gujarat, India, Lucknow, Meerut, Dehradun, Bihar, Ujjain, Jharkhand, Ahmedabad, Coimbatore, Sadar, Jamnagar, Hyderabad, Chandigarh, Ranchi, Jamalpur, Ambattur, Jabalpur, Waghala, Nagaur, Gulbarga

Countries We Export

Iran, Ecuador, Mexico, Afghanistan, Bulgaria, Denmark, Kenya, Singapore, Portugal, Venezuela, Sri Lanka, Chile, Gabon, Colombia, Belgium, Peru, Belarus, Yemen, Thailand,France, Italy, Mexico, Greece, Kuwait, Romania, Iraq, Netherlands, Sweden, Switzerland, Lithuania, Lebanon, Poland, Philippines, United Kingdom, Norway, Angola, Kazakhstan, Taiwan, Nigeria, Poland, China, Nigeria, Spain, Mongolia, New Zealand, United States, Hungary, Libya, Serbia, Ukraine, Finland, South Africa, Iran, Vietnam, Israel, Czech Republic, Slovakia, Hong Kong, Azerbaijan, Qatar, Japan, Oman, Malaysia, Pakistan, Algeria, Bangladesh, Jordan, Indonesia, Russia, United Arab Emirates, Brazil, Estonia, Turkey, Austria, Croatia, Ghana, Bahrain, Korea, Canada, Bolivia, Costa Rica, Trinidad & Tobago, Tunisia, Chile, Morocco, Bhutan, Argentina, Egypt

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