ASTM A453 Grade 660 A286 Stainless Steel Forged Disc
ASTM A453 Grade 660 A286 Stainless Steel Forged Disc is a high-performance precipitation-hardened iron-nickel-chromium alloy forging product supplied by SAKY STEEL.
This material is also widely known as A286, Grade 660, UNS S66286, SUH660, GH2132 and 1.4980. It is designed for applications requiring excellent high-temperature strength, oxidation resistance, corrosion resistance and reliable mechanical performance.
Grade 660 A286 forged discs are commonly used as forged blanks, machined discs, ring blanks, valve parts, turbine components, shafts, high-temperature fastener materials and precision engineering components.
With stable performance under elevated temperature conditions, ASTM A453 Grade 660 A286 Stainless Steel Forged Disc is widely demanded in aerospace, automotive, military, oil & gas, petrochemical, power generation and high-end equipment manufacturing industries.
Product Parameters
SAKY STEEL supplies ASTM A453 Grade 660 A286 Stainless Steel Forged Disc in different diameters, thicknesses, hole sizes and machining conditions.
Custom sizes can be produced according to drawings or technical specifications.
| Item |
Specification |
| Product Name |
ASTM A453 Grade 660 A286 Stainless Steel Forged Disc |
| Material Grade |
Grade 660 / A286 / UNS S66286 / SUH660 / GH2132 / 1.4980 |
| Standard |
ASTM A453, ASTM A638, AMS 5731, AMS 5732, AMS 5737, EN 10204 |
| Product Form |
Forged Disc, Forged Ring Blank, Machined Disc, Forged Block, Custom Forging |
| Diameter Range |
50 mm - 800 mm or customized |
| Thickness / Height |
10 mm - 300 mm or customized |
| Center Hole |
Available according to drawing |
| Surface Condition |
Black Forged, Rough Machined, Turned, Polished, CNC Machined |
| Heat Treatment |
Solution Treated, Aged, Precipitation Hardened |
| Inspection |
UT Test, PMI Test, Dimension Inspection, Hardness Test, Mechanical Test |
| Certificate |
EN 10204 3.1 / 3.2 MTC available |
| Quality System |
ISO 9001 Quality Management System |
Different Specifications Comparison
| Type |
Outer Diameter |
Thickness |
Hole Type |
Surface |
Typical Use |
| Forged Disc Blank |
100 - 600 mm |
20 - 200 mm |
Without Hole |
Black / Rough Machined |
Further machining parts |
| Forged Disc with Center Hole |
100 - 500 mm |
20 - 150 mm |
Center Hole |
Turned / Machined |
Valve parts, shaft parts, turbine parts |
| Forged Ring Blank |
150 - 800 mm |
30 - 300 mm |
Through Hole |
Rough Machined |
Ring components, flanges, pressure parts |
| Precision Machined Disc |
According to Drawing |
According to Drawing |
Customized |
CNC Machined |
Aerospace, automotive, military components |
Equivalent Standards and International Names
Grade 660 A286 stainless steel forged disc has different names in different countries and standards.
Customers from different markets may search for A286 forged disc, ASTM A453 Grade 660 forged disc, UNS S66286 forging, SUH660 forged disc or GH2132 forged disc.
| Country / Standard |
Common Name |
Equivalent Grade |
| USA / ASTM |
ASTM A453 Grade 660 |
Grade 660 |
| USA / UNS |
UNS S66286 |
A286 |
| USA / AMS |
AMS 5731 / AMS 5732 / AMS 5737 |
A286 Alloy |
| Germany / DIN |
1.4980 |
X6NiCrTiMoVB25-15-2 |
| Japan / JIS |
SUH660 |
A286 Equivalent |
| China / GB |
GH2132 / GH132 |
A286 Equivalent |
| European Name |
X6NiCrTiMoVB25-15-2 |
1.4980 |
Chemical Composition of Grade 660 A286 Stainless Steel
The following chemical composition is for reference based on common A286 / UNS S66286 material requirements.
Final composition shall be confirmed according to the applicable standard, purchase order and mill test certificate.
| Element |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Mo |
Ti |
Al |
V |
B |
Fe |
| Content % |
≤0.08 |
≤2.00 |
≤1.00 |
≤0.040 |
≤0.030 |
13.50-16.00 |
24.00-27.00 |
1.00-1.50 |
1.90-2.35 |
≤0.35 |
0.10-0.50 |
0.001-0.010 |
Balance |
Mechanical Properties of ASTM A453 Grade 660 A286 Forged Disc
Mechanical properties may vary depending on heat treatment condition, section size and applicable class.
SAKY STEEL can provide solution treated and aged ASTM A453 Grade 660 A286 forged discs according to customer requirements.
| Condition |
Tensile Strength |
Yield Strength |
Elongation |
Reduction of Area |
Hardness |
| Solution Treated + Aged |
895 MPa min |
590 MPa min |
15% min |
18% min |
Approx. 248-321 HB |
| High Strength Condition |
960 MPa min |
690 MPa min |
12% min |
15% min |
As per order requirement |
For critical projects, SAKY STEEL can supply test reports including chemical analysis, tensile test, hardness test, ultrasonic test, PMI test and dimensional inspection report.
Production and inspection can be controlled under an ISO 9001 quality management system.
Common Stock Size Table
Below are common size ranges for ASTM A453 Grade 660 A286 Stainless Steel Forged Disc.
Actual stock availability may change according to production schedule and customer demand. Custom forged discs can be produced based on drawings.
| Outer Diameter |
Thickness / Height |
Hole Diameter |
Condition |
Surface |
Availability |
| 100 mm |
20-80 mm |
Optional |
Forged + Heat Treated |
Rough Machined |
Stock / Production |
| 150 mm |
30-100 mm |
Optional |
Forged + Heat Treated |
Turned |
Stock / Production |
| 200 mm |
40-120 mm |
Optional |
Forged + Aged |
Machined |
Production |
| 250 mm |
50-150 mm |
Optional |
Forged + Heat Treated |
Rough Machined |
Production |
| 300 mm |
50-180 mm |
Optional |
Forged + Heat Treated |
Machined |
Production |
| 400 mm |
80-200 mm |
Optional |
Forged + Heat Treated |
Rough Machined |
Production |
| 500 mm and above |
100-300 mm |
According to Drawing |
Custom Forging |
Customized |
Made to Order |
Applications of ASTM A453 Grade 660 A286 Stainless Steel Forged Disc
Due to its excellent high-temperature mechanical strength and corrosion resistance, ASTM A453 Grade 660 A286 Stainless Steel Forged Disc is widely used in industries where safety, reliability and long service life are important.
| Industry |
Typical Applications |
Why Grade 660 A286 Is Used |
| Aerospace |
Turbine parts, engine components, high-temperature fasteners, structural parts |
High strength, oxidation resistance and stability at elevated temperature |
| Automotive |
Turbocharger parts, exhaust system components, high-temperature shafts |
Good heat resistance and mechanical reliability |
| Military & Defense |
Precision machined components, high-strength fasteners, special equipment parts |
Reliable performance under demanding working conditions |
| Oil & Gas |
Valve parts, bolting materials, flange components, pressure equipment parts |
Good corrosion resistance and high-temperature strength |
| Petrochemical |
Reactor components, pump parts, heat-resistant fittings |
Suitable for chemical and thermal service environments |
| Power Generation |
Turbine discs, shafts, fasteners, high-temperature mechanical parts |
Excellent creep resistance and long-term service stability |
Production Process Flow
The production process of ASTM A453 Grade 660 A286 Stainless Steel Forged Disc includes strict control from raw material selection to final inspection.
Each step is important to ensure chemical composition, mechanical properties, dimensional accuracy and traceability.
1. Raw Material Selection
2. Chemical Analysis
3. Cutting
4. Heating
5. Forging
6. Heat Treatment
7. Rough Machining
8. UT Test
9. Precision Machining
10. Final Inspection
11. Packing
12. Delivery
| Process Step |
Description |
Quality Control Point |
| Raw Material Selection |
Select qualified A286 / Grade 660 alloy raw material |
Heat number, MTC, chemical composition |
| Cutting |
Cut raw material according to forging size requirement |
Weight, size and traceability control |
| Forging |
Hot forging to improve internal structure and grain flow |
Forging ratio, temperature control |
| Heat Treatment |
Solution treatment and aging treatment as required |
Temperature, holding time, cooling method |
| Machining |
Turning, drilling, boring and CNC machining |
Diameter, thickness, hole size, tolerance |
| Inspection |
Final dimensional and material inspection |
UT, PMI, hardness, tensile test, visual inspection |
| Packing |
Export wooden box and waterproof protection |
Label, marking, packing list, shipping mark |
Product Grade 660 A286 Stainless Steel Forged Disc Inspection
1.Product Grade 660 A286 Stainless Steel Forged Disc PMI Inspection
PMI (Positive Material Identification) inspection is performed on the ASTM A453 Grade 660 A286 stainless steel forged disc using a handheld XRF analyzer to verify the chemical composition and confirm the material grade. This inspection helps ensure material traceability, prevents material mix-up, and guarantees compliance with international standards and customer requirements for high-temperature industrial applications.
2.Product Grade 660 A286 Stainless Steel Forged Disc PT Inspection
PT (Penetrant Testing) inspection is conducted on the A286 stainless steel forged disc to detect surface defects such as cracks, laps, porosity and other discontinuities. The red penetrant makes surface defects clearly visible, helping ensure the surface integrity and reliable performance of forged components used in high-stress and high-temperature applications.
3.Product Grade 660 A286 Stainless Steel Forged Disc Thread Dimension Inspection
The internal threaded holes of Grade 660 A286 stainless steel forged discs are inspected for dimensional accuracy using calipers, gauges and measuring tools. This inspection helps confirm thread diameter, hole depth, hole position and machining quality, ensuring correct assembly and mechanical reliability for critical industrial components.
Product Packaging
SAKY STEEL pays attention to export packaging to protect ASTM A453 Grade 660 A286 Stainless Steel Forged Disc during sea, air and land transportation.
Packaging can be customized according to product weight, size, shipping method and customer requirements.
- Wooden Box Packaging: Suitable for forged discs, ring blanks and machined components. The products are fixed inside the box to prevent movement during transportation.
- Waterproof Woven Bag / Snake Skin Bag: Used for additional moisture protection and outer wrapping before wooden box packing.
- Plastic Film Protection: Applied to machined surfaces to prevent scratches and oxidation.
- Pallet Packing: Suitable for heavy forged discs or batch shipment.
- Marking: Grade, heat number, size, quantity and customer PO number can be marked on products or labels.
Why Choose SAKY STEEL?
- Professional supplier of ASTM A453 Grade 660 A286 stainless steel forged discs and special alloy forgings
- Custom production according to drawings, standards and project requirements
- Strict quality control under ISO 9001 quality management system
- Material traceability with heat number and EN 10204 3.1 / 3.2 certificate available
- UT test, PMI test, hardness test and mechanical test available
- Export packaging with wooden box and waterproof protection
- Suitable for aerospace, automotive, military, oil & gas, petrochemical and power generation industries
FAQ
What is ASTM A453 Grade 660 A286 Stainless Steel Forged Disc?
ASTM A453 Grade 660 A286 Stainless Steel Forged Disc is a precipitation-hardened iron-nickel-chromium alloy forging product used for high-temperature and high-strength applications.
Is Grade 660 the same as A286?
Grade 660 is commonly associated with A286 alloy. It is also known as UNS S66286, SUH660, GH2132 and 1.4980 in different standards and markets.
Can SAKY STEEL supply forged discs with center holes?
Yes. SAKY STEEL can supply forged discs, forged ring blanks and machined discs with center holes according to customer drawings.
What tests can be provided for A286 forged discs?
SAKY STEEL can provide chemical analysis, tensile test, hardness test, ultrasonic test, PMI test, dimensional inspection and EN 10204 3.1 / 3.2 material certificate.
What industries use ASTM A453 Grade 660 A286 forged discs?
They are widely used in aerospace, automotive, military, oil & gas, petrochemical, power generation and high-temperature equipment manufacturing industries.
Contact SAKY STEEL
If you are looking for ASTM A453 Grade 660 A286 Stainless Steel Forged Disc, A286 forged ring blank or UNS S66286 stainless steel forging, please contact SAKY STEEL with your required size, drawing, standard, heat treatment condition and inspection requirements.
We can provide professional material solutions for high-temperature alloy forging applications.
