Contact Us
East district of New high-tech industrial park, Jiangyou City, Sichuan Province, China
86 - 15386611557
www.cnlhss.com
You are here: Home > Stainless Steel

S17400 - 17-4PH - Stainless Steel

UNS S17400 / 17-4PH is A Martensitic, Chromium-Nickel-Copper Precipitation Hardening Stainless Steel that Provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperature up to 300℃.
Product parameters
Material Category:: Martensitic PH Stainless Steel
Stocklist & Inventory Available:: Diameter 10 ~ 300mm
Melting Process Route:: EAF + VD + LF / BEF + ESR / VAR
Heat Treatment Practice:: Solution annealed 1050 ℃, water, oil or air cooled, aged 480 ~ 620 ℃, air cooled
Ultrasonic Test Standard:: ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308
Production Lead Time:: Within 25 days after 30% deposit prepayable
INQUIRY
Description

Introduction:
UNS S17400 is a corrosion resistant grade which is soft and ductile in the solution annealed condition. Medium to high strength, good toughness and strength is obtained by the appropriate ageing treatment. As a martensitic precipitation hardening stainless it is characterised by high tensile strength and high yield strength obtained by solution annealing, followed by a single or double low temperature age hardening treatment. UNS S17400 has corrosive properties comparable to 304 austenitic stainless steel in many environments.
The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.

 

Applications:
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. UNS S17400 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.

 

Technical Standard: ASTM A564


Equivalent Grades
DIN ASTM AISI UNS JIS Other
1.4542
X5CrNiCuNb16-4
Grade 630 630 S17400 SUS 630 17-4PH
AMS 5643
AMS 5622
Z6CNU17-04
10705GU-GV


Chemical Composition (Weight %)
C Si Mn P S Cr Ni Mo Other
≤ 0.07 ≤ 1.00 ≤ 1.00 ≤ 0.040 ≤ 0.030 15.0 ~ 17.0 3.00 ~ 5.00 - Cu 3.00 ~ 5.00
Nb+Ta 0.15 ~ 0.45


Mechanical Properties Under Room Temperature
Condition of heat treatment Tensile
Rm(MPa)
Yield
Rp0.2(MPa)
Elongation
A(%)
Reduction in cross
section on fracture
Z (%)
Impact
AKV/AKU(J)
Brinell
Hardness(HBW)
Annealed ≤ 1034 ≤ 650 6.0 ~ 15.0 30.0 ~ 60.0 - ≤ 363
H900 ≥ 1380 ≥ 1275 ≥ 14.0 ≥ 50.0 ≥ 20 ≤ 420
H925 ≥ 1310 ≥ 1200 ≥ 14.0 ≥ 54.0  ≥ 34 ≤ 409
H1025 ≥ 1170 ≥ 1140 ≥ 15.0 ≥ 56.0 ≥ 47  ≤ 352
H1075 ≥ 1140 ≥ 1035 ≥ 16.0 ≥ 58.0 ≥ 61  ≤ 341
H1100 ≥ 1035 ≥ 930 ≥ 17.0 ≥ 58.0 ≥ 61 ≤ 332
H1150 ≥ 1000 ≥ 860 ≥ 19.0 ≥ 60.0 ≥ 68 ≤ 311
H1150+H1150 ≥ 965 ≥ 760 ≥ 20.0 ≥ 60.0 ≥ 108 ≤ 302
H1150M ≥ 860 ≥ 585 ≥ 22.0 ≥ 68.0 ≥ 135 ≤ 277


Shapes and Dimensions Avallable:
Round bar (Diameter): 5.5 mm to 650 mm
Wire rod (Diameter): 0.50 ~ 13mm
Square bar / Flat bar: 5mm to 610mm
Steel strip via cold rolled: T0.1 - 3 X W5 - 650 X Lmm
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250 X H20 ~ 1250mm
Heavy/middle plate via hot rolled: T50 - 200mm X W80- 1200mm X L1000-3000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 

Submit an enquiry for the displaying steel materials you are interested in TODAY!