17-4PH / S17400 / AMS 5643 Martensitic Ageing Steel
Item No.: 17-4PH
| Product parameters | |
| Material Category:: | Martensitic Hardening Stainless Steel |
| Material Technical Standards:: | ASTM A276, ASTM A693, ASTM A705 |
| Place of Origin: | P. R. China |
| Terms of Price:: | Ex works, CIF, and CFR |
| Stocklist & Inventory Available:: | Round bar Diameter ranges from 5.5 ~ 300mm |
| Melting Process Route:: | EAF + LF + VD / + ESR, BEF + ESR |
| Min. order quantity Per Batch:: | 1000 KG |
| Product Shapes:: | Round bar, Flat bar, Plate, Wire rod, and Forging piece. |
| Heat Treatment Practice:: | Solution annealed 1040 ℃, water or air cooled, aged at 480 / 550 / 580 / 620 ℃ |
| Ultrasonic Test Standard:: | ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308. |
| Standard Export Packing Way:: | Wooden box, wooden Pallet / tray with free from fumigation. |
| Production Lead Time:: | Within 10 days after 40% deposit. |
| Unified Social Credit Code:: | 91510871777942750J |
| Company ISO Register No:: | UQ211218R0 |
Description
17-4PH 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. 17-4PH 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. 17-4PH is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. 17-4PH is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
Technical Standard: ASTM A564
All Grades Comparison
| 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 |
| 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 AT RM.
| 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 |
Product Shapes and Dimensions:
Round bar (Diameter): 5.5 mm to 700 mm
Wire rod (Diameter): 1.0 ~ 16mm
Square bar / Flat bar: 5mm to 550mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250mm 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.
