Stainless Steel 13-8 MO Bars and Rods are celebrated for their remarkable strength, toughness, and outstanding resistance to corrosion, making them perfect for critical and high-performance applications. As a martensitic precipitation-hardening stainless steel, 13-8 MO delivers excellent mechanical stability, even in tough environments, while also being easy to fabricate and weld. These bars and rods find their place in industries where reliability, durability, and resistance to stress corrosion cracking are a must. With consistent quality, impressive hardness, and top-notch performance across a wide temperature range, SS 13-8 MO bars and rods are the go-to choice for demanding aerospace, marine, and engineering projects.
The composition of Stainless Steel 13-8 MO Bars and Rods includes chromium, nickel, and molybdenum, which are key alloying elements that boost strength, toughness, and corrosion resistance. Thanks to controlled heat treatment, this alloy achieves a tensile strength range of about 1030–1400 MPa and a yield strength of 930–1310 MPa. It boasts excellent resistance to stress corrosion cracking, good ductility, and stable mechanical properties, even in subzero temperatures. The material’s clean microstructure and high purity enhance its fatigue strength, making it a reliable choice for precision engineering and heavy-duty applications.
Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI
Grade :13-8 MO (UNS No. S13800) Round Bars 1.4548
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Surface : Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline
Application : Chemical process, Food processing, Petrochemical, Pollution control, Pulp and Paper, Refining
Condition : Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished.
Our 13-8 Mo Round Bars conforms to NACE MR0175/ISO 15156
| Grade | C | P | Si | Ni | Al | Fe | Mn | S | Cr | Mo | N |
| SS 13-8 Mo | 0.05 max | 0.010 max | 0.10 max | 7.5-8.5 | 0.90-1.35 | Bal | 0.10 max | 0.008 max | 12.25-13.25 | 2.0-2.5 | 0.01 max |
| Material | Condition | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
| Alloy 13-8 Sheet AMS 5864 | Cond A | – | – | – | – | 38 max |
| Alloy 13-8 Sheet AMS 5864 | H950 | 220 | 205 | 10 | 45 | 45 |
| Alloy 13-8 Sheet AMS 5864 | H1000 | 205 | 190 | 10 | 50 | 43 |
| Alloy 13-8 Sheet AMS 5864 | H1025 | 185 | 175 | 11 | 50 | 41 |
| Alloy 13-8 Sheet AMS 5864 | H1050 | 175 | 165 | 12 | 50 | 40 |
| Alloy 13-8 Sheet AMS 5864 | H1100 | 150 | 135 | 14 | 50 | 34 |
| Alloy 13-8 Sheet AMS 5864 | H1150 | 135 | 90 | 14 | 50 | 30 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 13-8 Mo | 1.4548 | S13800 |
Stainless Steel 13-8 MO Bars and Rods are known for their exceptional strength, corrosion resistance, and toughness. They offer excellent performance in high-stress and extreme environments, making them ideal for aerospace, defense, and other demanding applications.
Industries such as aerospace, defense, and oil and gas often use Stainless Steel 13-8 MO Bars and Rods for components like aircraft parts, landing gear, structural components, and high-performance fasteners that require strength and durability.
Yes, at Hemi Metals, we offer customized sizes and specifications to meet your exact application needs. Our Stainless Steel 13-8 MO Bars and Rods are tailored to deliver optimal performance and reliability for your specific requirements.
You’ll find Stainless Steel 13-8 MO Bars and Rods commonly used in aerospace components like landing gear parts, structural fittings, and actuator systems, all due to their impressive strength-to-weight ratio and toughness. They’re also utilized in marine hardware, petrochemical processing equipment, high-pressure valves, chemical plant components, and defense applications. In manufacturing, these bars and rods are favored for shafts, fasteners, couplings, pump parts, and other machined components that require exceptional fatigue resistance and dimensional stability. Their ability to perform under extreme stress and in corrosive conditions makes 13-8 MO a top-tier material for advanced engineering industries.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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