Aerospace Grade 17-4PH Stainless Steel Bright Bars, PSQ Bars & High-Strength Engineering Products Manufacturer from India
Aamor Inox manufactures premium-quality 17-4PH / 1.4542 / Type 630 stainless steel long products for demanding aerospace, defence, oil & gas, valve, fluid-control, marine, energy, automation, and precision engineering industries worldwide.
Trusted across critical-service engineering applications in more than 60 countries, our 17-4PH solutions are supplied to customers across:
17-4PH remains one of the world's most preferred precipitation-hardening stainless steels because it offers a rare combination of:
Why Engineers Choose 17-4PH
Unlike conventional martensitic stainless steels, 17-4PH develops strength through controlled precipitation hardening, allowing the material to maintain low distortion and stable geometry after ageing treatment.
Aerospace & Defence Used In:
At Aamor Inox, 17-4PH products are engineered for critical-service applications where long-term performance depends heavily on:
Aamor Inox operates with strong focus on critical-service engineering applications requiring high process reliability, traceability, and global quality compliance.
Our manufacturing systems are supported by internationally recognized certifications including:
For high-performance grades such as 17-4PH, quality is not created only during final inspection.
At Aamor Inox, our manufacturing philosophy focuses strongly on building repeatability directly into the process — not depending solely on post-production correction.
| Product Form | Size (mm) | Size (Inch) |
|---|---|---|
| Bright Centreless Ground Round Bars | 8 – 100 mm | 5/16" – 4" |
| Hot Rolled Smooth Turned / Peeled Bars | 20 – 160 mm | 3/4" – 6" |
| Pump Shaft Quality Bars | 8 – 100 mm | 5/16" – 4" |
| Boat Shaft Quality Bars | 15 – 100 mm | 5/8" – 4" |
| Precision Bright Bars | 8 – 100 mm | 5/16" – 4" |
| HRAP Square Bars | 15 – 50 mm | 5/8" – 2" |
| HRAP Flat Bars | 25×3 – 150×50 mm | 1"×3/16" – 6"×1" |
Our fully automatic centreless grinding lines from Italy are developed specifically for shafting applications requiring:
Precision Ground Shafting & PSQ Bars: Our PSQ and precision shafting solutions are developed specifically for applications requiring:
Gold standard in Heat Treating. We have one of the world's most advanced Heat Treatment furnaces with NADCAP accreditation. Our furnaces are manufactured in Germany by Schlager Industrieofenbau GmbH, a leader in heat treatment technology.
Capacity: 30 tons per batch
Temperature Uniformity: +/-3 degrees C
Quench Delay: 30 seconds
The Oil & Water Quenching tanks are equipped with a very strong agitation mechanism which assures controlled cooling curves during quenching process.
This makes Aamor Inox a leader for all heat-treated 17-4PH Stainless Steel in all shapes & forms.
Our fully automatic German-made NADCAP accredited furnaces are developed for:
Aamor-Inox produces 17-4 materials to meet the following specifications:
| Grade | C (Max) | Si (Max) | Mn (Max) | Cr | Ni | Cu | Nb + Ta | S (Max) | Ph (Max) | Mo (Max) |
|---|---|---|---|---|---|---|---|---|---|---|
| 17-4 | 0.07 | 1.00 | 1.00 | 15.00-17.50 | 3.00-5.00 | 3.00-5.00 | 0.15 to 0.45 | 0.030 (0.025) |
0.040 (0.030) | - |
| 630 | 0.07 | 1.00 | 1.00 | 15.00-17.50 | 3.00-5.00 | 3.00-5.00 | 0.15 to 0.45 | 0.030 (0.025) |
0.040 (0.030) | - |
| 1.4542 | 0.07 | 0.70 | 1.50 | 15.00-17.50 | 3.00-5.00 | 3.00-5.00 | 5xC to 0.45 | 0.030 (0.025) |
0.040 (0.030) | 0.60 |
| 1.4548 | 0.07 | 1.00 | 1.00 | 15.00-17.50 | 3.00-5.00 | 3.00-5.00 | 0.15 to 0.45 | 0.025 | 0.025 | 0.60 |
* Ph upto 0.025% max can be achieved and supplied as per ASME 5622.
PREN = (%Cr + 3.3%Mo +16%N) ≥ 17
| Type | Standard | Tensile Strength (min) |
Yield Strength (min) |
Elongation % (Min) |
Reduction % (min) |
Hardness | Impact Charpy-V (min) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ksi | MPa | Ksi | MPa | Min | Max | Min | Max | Foot/Lbs | Joules | ||||
| Condition A | ASTM A564 | - | - | - | - | - | - | - | 38 | 363 | 363 | - | - |
| H900 | ASTM A564 | 190 | 1310 | 170 | 1170 | 10 | 40 | 40 | - | 388 | - | - | - |
| H925 | ASTM A564 | 170 | 1170 | 155 | 1070 | 10 | 44 | 38 | - | 375 | - | 5 | 6.8 |
| H1025 | ASTM A564 | 155 | 1070 | 145 | 1000 | 12 | 45 | 35 | - | 331 | - | 15 | 20 |
| H1075 | ASTM A564 | 145 | 1000 | 125 | 860 | 13 | 45 | 32 | - | 311 | - | 20 | 27 |
| H1100 | ASTM A564 | 140 | 965 | 115 | 795 | 14 | 45 | 31 | - | 302 | - | 25 | 34 |
| H1150 | ASTM A564 | 135 | 930 | 105 | 725 | 16 | 50 | 28 | - | 277 | - | 30 | 41 |
| H1150M | ASTM A564 | 115 | 795 | 75 | 520 | 18 | 55 | 24 | - | 255 | - | 55 | 75 |
| H1150D | ASTM A564 | 125 | 860 | 105 | 725 | 16 | 50 | 24 | - | 255 | 311 | 30 | 41 |
| Condition AT | EN 10088-3 | - | 1200 max | - | - | - | - | - | - | - | 360 | - | - |
| P800 | EN 10088-3 | - | 800-950 | - | 520 | 18 | - | - | - | - | - | - | 75 |
| P930 | EN 10088-3 | - | 930-1100 | - | 720 | 16 | - | - | - | - | - | - | 40 |
| P960 | EN 10088-3 | - | 960-1160 | - | 790 | 12 | - | - | - | - | - | - | - |
| P1070 | EN 10088-3 | - | 1070-1270 | - | 1000 | 10 | - | - | - | - | - | - | - |
For high-strength engineering applications, surface quality becomes critically important.
Long-Length Precision Shafting Capability
Aamor Inox manufactures precision shafting up to: 8.2 meters (27 ft) for applications requiring stable geometry and dependable straightness over long lengths.
This capability becomes especially important for:
For precision shafting and ground bars, manufacturing quality alone is not sufficient. Protection during transportation, export handling, loading, unloading, and storage becomes equally important for maintaining:
This becomes especially important for centreless ground shafting, polished bars, aerospace-grade rotating components, and export-critical engineering products.
Aamor Inox is India’s first stainless steel long-products manufacturer with:
As well as:
Customers across demanding aerospace, energy, marine, fluid-control, and engineering industries trust Aamor Inox because our manufacturing philosophy focuses on:
A-30, Site 4, UPSIDC Industrial Area, Sahibabad, Ghaziabad 201010, Uttar Pradesh, India
Plot #10, Site 2, Industrial Area, Loni Road Mohan Nagar, Ghaziabad 201007, Uttar Pradesh, India
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