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Products/Stainless Steel/17-4PH

17-4PH Stainless Steel Round Bar

Martensitic Precipitation-Hardening Chromium-Nickel-Copper Stainless Steel

Standard
ASTM A564 Type 630 / AMS 5643 / EN 10088-3
Werkstoff / UNS
Werkstoff: 1.4542 / 1.4548UNS: S17400
Common Equivalents
1.45421.4548AMS 5643
Overview

About 17-4PH Stainless Steel

C P Steel Suppliers supplies 17-4PH Stainless Steel for engineering, industrial machinery and manufacturing applications. It is classified as Martensitic Precipitation-Hardening Chromium-Nickel-Copper Stainless Steel. Common equivalents include 1.4542, 1.4548, AMS 5643. Available forms include ROUND BAR, FLAT BARS, SHEET, PLATE, COIL, RINGS.

Contact our Mumbai team with your required size and quantity to confirm availability, documentation and delivery.

17-4PH Round Bar Suppliers, 17-4PH Stockist, 17-4PH Big Dia, 17-4PH Cut to size as per requirement, 17-4PH vs 1.4542, 1.4548, AMS 5643, 17-4PH Flat Bar, 17-4PH Small Quantity, 17-4PH Larger Dia, 17-4PH Circle, Ring. 17-4PH Mumbai, Chennai, Tamil Nadu, Gujarat, Pune, Maharashtra, India etc.

Specification

Chemical Composition

ElementComposition (wt%)
CCarbon
max 0.07%
SiSilicon
max 0.70 (ASTM max 1.00)%
MnManganese
max 1.50 (ASTM max 1.00)%
PPhosphorus
max 0.040%
SSulfur
max 0.015 (Bar max 0.030)%
CrChromium
15.00 - 17.00%
NiNickel
3.00 - 5.00%
CuCopper
3.00 - 5.00%
TaNiobium Nb plus Tantalum
5 x C to 0.45 (0.15 - 0.45)%
MoMolybdenum
max 0.60%
FeIron
Balance
Performance

Mechanical, Physical & Processing Properties

PropertyValue / Reading
Tensile Strengthmin 1310 MPa (H900) / 930 - 1170 MPa (H1025 - H1150)
Yield Strengthmin 1170 MPa (H900) / 725 - 1000 MPa (H1025 - H1150)
Elongation10 - 16 % (Aged H900 to H1150)
Hardness Brinellmax 363 HBW (Solution Annealed +AT) / 311 - 420 HBW (28 - 44 HRC Aged)
PropertyValue / Reading
Density7.80 g/cm3
Melting Point1400 - 1440 deg C
Modulus Of Elasticity197 - 200 GPa
Thermal Conductivity16.0 - 18.3 W/(m.K)
PropertyValue / Reading
WeldabilityReadily welded by conventional arc and resistance processes without preheating; post-weld solution treatment and aging restore full strength.
MachinabilityGood in both Solution Annealed (Condition A) and aged conditions (H1075/H1150) with minimal distortion during final aging.
Case HardeningSingle-step low-temperature precipitation hardening (480 - 620 deg C for H900 - H1150) provides high strength; also suitable for gas/plasma nitriding.
Corrosion ResistanceComparable to SS304 in most environments, combined with high yield strength for aerospace, oilfield, and pump shaft applications.
Cross Reference

Equivalent Grades by Standard

Standard / RegionEquivalent Grade
Indian ISX5CrNiCuNb16-4
European ENX5CrNiCuNb16-4 (1.4542) (EN 10088-3)
Germany DINX5CrNiCuNb17-4-4 / 1.4542 / 1.4548
Japan JISSUS630 (JIS G4303 / G4304)
UK (BS)ANC4B
USA (SAE / AISI)AISI 630 / 17-4 PH / AMS 5643 / UNS S17400
Availability

Available Forms & Sizes

  • ROUND BAR
  • FLAT BARS
  • SHEET
  • PLATE
  • COIL
  • RINGS
FAQ

17-4PH — frequently asked questions

What is the equivalent of 17-4PH?
Common equivalents include 1.4542, 1.4548, AMS 5643. Standards: Indian IS: X5CrNiCuNb16-4; European EN: X5CrNiCuNb16-4 (1.4542) (EN 10088-3); Germany DIN: X5CrNiCuNb17-4-4 / 1.4542 / 1.4548; Japan JIS: SUS630 (JIS G4303 / G4304); UK (BS): ANC4B; USA (SAE / AISI): AISI 630 / 17-4 PH / AMS 5643 / UNS S17400.
Which forms of 17-4PH are available?
17-4PH is available as ROUND BAR, FLAT BARS, SHEET, PLATE, COIL, RINGS.
Where can I buy 17-4PH Stainless Steel in Mumbai or across India?
C P Steel Suppliers supplies 17-4PH Stainless Steel from Mumbai. Contact us with your size and quantity to confirm availability and delivery.

Interested in Stainless Steel 17-4PH?

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