is an SAE Recommended Practice titled: "Speed Identification for Construction and Industrial Equipment."
Carbon. C % 0.370 - 0.440. Manganese. Mn % 0.700 - 1.000. Phosphorus. P % 0.030 max. Sulphur. S % 0.050 max. Iron. Fe % Balance. - Gravity Group of Companies sae j1397 pdf
| Parameter | Description | |-----------|-------------| | | The center of the bucket hinge pin circle, or a defined point on the bucket back. | | Lift Height | Standardized to 1.5 m (5 ft) above ground level across all tests. | | Stability Criteria | For crawler excavators, the machine is considered to have reached its stability limit when the track begins to lift off the ground. For wheeled excavators, outriggers may be deployed. | | Hydraulic Relief | Lift is measured at main relief valve setting, with allowance for pressure drop. | | Operating Condition | Machine must be on firm, level ground, with full fuel, hydraulic oil, and coolant, and with standard counterweight. | is an SAE Recommended Practice titled: "Speed Identification
In the world of heavy machinery and construction equipment, safety and performance standards are not just recommendations—they are necessities. Among the myriad of technical documents published by SAE International (formerly the Society of Automotive Engineers), stands out as a critical standard for anyone involved in the operation, rental, or purchase of hydraulic excavators. Mn % 0
For a common low-carbon steel like , J1397 typically lists: Tensile Strength: ~340 MPa min. Yield Strength: ~190 MPa min. Hardness: ~101 HB max. Sae J1397 92 | PDF - Scribd
For example, a 20-ton excavator might show: