UNS S13800 XM-13 Age-Hardening Stainless Steel Bars and Plates
Martensitic precipitation-hardening stainless steel boasts high strength, excellent toughness, corrosion resistance, and good weldability. Its mechanical properties can be further enhanced through age hardening. It is suitable for use in complex environments and offers flexible heat treatment processes. However, it comes with higher costs and stringent processing requirements, and may be prone to age-hardening cracks.
Applications of UNS S13800
In the aerospace industry, it is commonly used to manufacture engine fasteners, landing gear components, and high-stress structural parts. In the shipbuilding industry, it is suitable for pump valves, shafts, and submarine components that are resistant to seawater corrosion. In the chemical industry, it can be used for pipelines and reactor components that are acid-resistant and corrosion-resistant.
Equivalent Grades and Commonly Used Specifications of UNS S13800
| Steel Grade | Specification | Specification Name |
| 04Cr13Ni8Mo2Al/ S51380 | GB/T 3280 | Cold rolled stainless steel plate, sheet and strip 4 |
| GB/T 4237 | Hot rolled stainless steel plate, sheet and strip | |
| UNS S13800/ XM-13 | ASTM A564/A564M | Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
| ASTM A705/A705M | Standard Specification for Age-Hardening Stainless Steel Forgings | |
| ASTM A959 | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels | |
| ASTM A693/A693M | Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip | |
| AMS 5629 | Steel, Corrosion-Resistant, Bars, Wire, Forgings, Rings, and Extrusions 13Cr – 8.0Ni – 2.2Mo – 1.1Al Vacuum Induction Plus Consumable Electrode Melted Solution Heat Treated, Precipitation Hardenable | |
| AMS 5864 | Steel, Corrosion-Resistant, Plate, 13Cr 8.0Ni 2.2Mo 1.1Al, Vacuum Induction Plus Consumable Electrode Melted, Solution Heat Treated, Precipitation Hardenable | |
| 1.4534 | EN 3359 | Aerospace series — Steel X3CrNiMoAl13-8-2 (1.4534) — Vacuum induction melted and consumable electrode remelted — Softened — Forging stocks — a or D ≤ 300 mm |
| EN 3486 | Aerospace series – Steel X3CrNiMoAl13-8-2 (1.4534) – Solution annealed and precipitation hardened – Forgings | |
| Products produced as per other specifications or technical agreements (if need) are available. | ||
Typical Chemical Composition of UNS S13800
|
Elements |
C | Si | Mn | P | S | Ni | Cr | Mo | Al | N |
| Contents% | ≤0.50 | ≤0.10 | ≤0.20 | ≤0.010 | ≤0.008 | 7.50~8.50 | 12.25~13.25 | 2.00~2.50 | 0.90~1.35 |
≤0.01 |
| Products produced as per other specifications or technical agreements (if need) are available. | ||||||||||
Typical Heat Treatment Condition and Mechanical Properties of UNS S13800
|
Delivery Condition |
Mechanical Properties and Hardness of Heat-Treated Specimens | ||||||
| Rp0.2/(N/mm2) | Rm/(N/mm2) | A/% | Zb/% | Akv2d/J | HBW |
HRC |
|
|
Solution Treated（925℃±15℃） |
/ | / | / | / | / | ≤363 | ≤38 |
|
Precipitation Hardening（H950, 510℃, 4h, air） |
≥1415 | ≥1515 | ≥10 | ≥45 | / | ≥430 |
≥45 |
|
Precipitation Hardening（H1000, 540℃, 4h, air） |
≥1310 | ≥1415 | ≥10 | ≥50 | / | ≥400 |
≥43 |
| Precipitation Hardening（H1025, 550℃, 4h, air） |
≥1210 |
≥1280 | ≥11 | ≥50 | / | ≥380 |
≥41 |
|
Precipitation Hardening（H1050, 565℃, 4h, air） |
≥1140 | ≥1210 | ≥12 | ≥50 | / | ≥372 |
≥40 |
|
Precipitation Hardening（H1100, 595℃, 4h, air） |
≥930 | ≥1035 | ≥14 | ≥50 | / | ≥313 |
≥34 |
|
Precipitation Hardening（H1150, 620℃, 4h, air） |
≥620 | ≥930 | ≥14 | ≥50 | / | ≥283 |
≥30 |
|
Precipitation Hardening（H1150M, 760℃, 2h, air; PLUS 620℃, 4h, air） |
≥585 | ≥860 | ≥16 | ≥55 | / | ≥259 |
≥26 |
| Products produced as per other specifications or technical agreements (if need) are available. | |||||||
Product Forms and Size Range of UNS S13800
|
Product forms |
Size range |
|
Bars |
Diameter or side length: 5.0mm~1000mm |
|
Flats |
thickness: 4.0mm~1000mm width: 300mm~2200mm |
| Produce as other form and size according to technical requirements are available. | |
