AISI 1137 round steel bar
| Steel grade | Specification | Processing range(mm) |
| SAE 1137 | Round bar | Φ1 to Φ2000 |
| SAE 1137 | Square-shape steel/Flat bar | 10 to 1000 |
| SAE 1137 | Steel Plate/Sheet | 0.08 to 800(T)*10 to 1500(W)*Long |
| SAE 1137 | Forging | Pipe/tube/slugs/donuts/cubes/other shapes |
| SAE 1137 | Tubing | OD: Φ4-410; WT: 1-35 mm |
| SAE 1137 | Steel coils and strip | THK:0.1mm Width:1500mm |
| 1137 high Strength Chemical Composition | ||||
| Grade | The Element Max (%) | |||
| C | Mn | P | S | |
| A29 1137 | 0.32-0.39 | 1.35-1.65 | 0.04 | 0.08-0.13 |
| Mechanical Properties |
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 584.7 | 25 | annealed at 790°C more |
| Yield Strength (Mpa) | 344.7 | ||
| Elongation (%) | 26.8 | ||
| Reduction in Area (%) | 53.9 | ||
| Hardness (HB) | 174 | 25 | annealed at 790°C more |
| Impact Strength (J) (Izod) | 49.9 | 25 | annealed at 790°C more |
Machining performance
AISI 1137 the mechanical properties of the report, the report provides detailed performance analysis and application.
Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.
