17-4PH 630 Cold Drawn Stainless Steel Flat Bar 6000mm Stainless Steel Iron Plate
High Hardness 17-4PH / 630 Stainless Steel Flat Bar / Flat Stainless Steel Iron Plate / Flat Bar
| Products | Stainess Steel Flat Bar |
| Grade | 17-4PH / 630 / 1.4542 |
| Standard | ASTM GB EN JIS |
| Thickness | 4.0 - 100mm |
| Width | 20 - 400mm customs as request |
| Surface Finishing | Pickling , Hairline , Polished |
| Servie | Cutting , Heat treatment |
| Other Grade |
200 Series:201 202 300 Series: 301 304 304L 304H 309S 310S 314 316L 316Ti 317L 321 347 400 Series: 409L 410 420 430 431 436L 439 441 443 444 440A/B/C Others: S31803 S32750 904L 254SMO 253MA C276 Monel400 Inconel 600/625 |
| Application | Structure , Decoration , household, furniture , decoration,Mechanical processing |
| Other Products | Stainless Steel Plate / Sheet / Pipe / Bars / Strips.etc |
About 17-4PH Stainless Steel
17-4PH is a widely-used martensitic precipitation-hardening stainless steel with a high concentration of chromium and nickel. It has many favorable properties, including excellent strength, good corrosion resistance, and excellent mechanical properties up to 600 °F (316 °C).
The alloy also possesses good toughness when welded, while short low-temperature heat treatments reduce warping and scaling. Additionally, 17-4PH is easy to machine and fabricate.
Thanks to the beneficial properties, 17-4PH finds use in various industries. Typical parts include mechanical seals, oil patch, and pump shafts.
Furthermore, the alloy also finds use in the aerospace industry, petroleum industry, and chemical industry, food processing equipment, paper and pulp industry, nuclear waste processing and storage, and general metalworking.
Stainless Steel 17-4PH Chemical Composition
| Element | Min (%) | Max (%) |
| Carbon, C | – | 0.07 |
| Manganese, Mn | – | 1 |
| Silicon, Si | – | 1 |
| Sulfur, S | – | 0.03 |
| Phosphorus, P | – | 0.04 |
| Chromium, Cr | 15 | 17.5 |
| Niobium + Tantalum, Nb + Ta | 0.15 | 0.45 |
| Nickel, Ni | 3.0 | 5.0 |
| Copper, Cu | 3.0 | 5.0 |
| Iron, Fe | – | *Balance |
Stainless Steel 17-4PH Mechanical Properties
| Property | Imperial | Metric |
| Ultimate Tensile Strength | 23,300 psi | 160 MPa |
| Yield Strength (0.02%) | 16,680 psi | 115 MPa |
| Elongation (% in 2’’) | 5% | 5% |
| Rockwell Hardness C | 35 | 35 |
Heat Treatment
Stainless Steel 17-4PH is available in the solution annealed condition at 1900 °F (1038 °C) and then air-cooled to 90 °F (32 °C).
However, additional heat treatments can produce various hardness and toughness levels. The most common treatments are listed in the table below.
| Condition | Temperature [± 15 °F (± 8.4 °C)] | Cooling Method and Duration |
| H 900 | 900 °F (482 °C) | Air cooling for 1 hour |
| H 925 | 925 °F (496 °C) | Air cooling for 4 hours |
| H 1025 | 1025 °F (551 °C) | Air cooling for 4 hours |
| H 1075 | 1075 °F (580 °C) | Air cooling for 4 hours |
| H 1100 | 1100 °F (593 °C) | Air cooling for 4 hours |
| H 1150 | 1150 °F (621 °C) | Air cooling for 4 hours |
| H 1150 + 1150 | 1150 °F (621 °C) followed by 1150 °F (621 °C) |
Air cooling for 4 hours followed by Air cooling for 4 hours |
| H 1150-M | 1400 °F (760 °C) followed by 1150 °F (621 °C) |
Air cooling for 2 hours followed by Air cooling for 4 hours |
Standard Size of our stainless steel flat bar
| Standard | ASTM A276-06 | |||||
| Size Specification | 3×20 | 5×40 | 8×20 | 10×60 | 15×50 | 20×60 |
| 3×25 | 5×50 | 8×25 | 10×80 | 15×60 | 20×80 | |
| 3×30 | 5×60 | 8×30 | 10×100 | 15×80 | 20×100 | |
| 3×40 | 5×80 | 8×40 | 12×20 | 15×100 | 25×40 | |
| 3×50 | 5×100 | 8×50 | 12×25 | 16×30 | 25×50 | |
| 4×20 | 6×20 | 8×60 | 12×30 | 16×40 | 25×60 | |
| 4×25 | 6×25 | 8×80 | 12×40 | 16×50 | 25×70 | |
| 4×30 | 6×30 | 8×100 | 12×50 | 16×60 | 25×100 | |
| 4×40 | 6×35 | 10×20 | 12×60 | 16×70 | 30×40 | |
| 4×50 | 6×40 | 10×25 | 12×80 | 16×80 | 30×50 | |
| 4×60 | 6×50 | 10×30 | 12×100 | 16×100 | 30×60 | |
| 5×20 | 6×60 | 10×35 | 15×20 | 20×30 | 30×80 | |
| 5×25 | 6×80 | 10×40 | 15×30 | 20×40 | 30×100 | |
| 5×30 | 6×100 | 10×50 | 15×40 | 20×50 | ||
Our Stainless Steel Flat Bar Pictures
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