| Grade | 4130,4340 |
| Standard | ASTM A829/A829M |
| Width & Length | 18″ x 72″ or 36″ x 72″ |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR) |
| Mill Test Certificate | EN 10204 3.1 or EN 10204 3.2 |
| Raw Materail | POSCO, Baosteel, TISCO, Saky Steel, Outokumpu |
| C | Si | Mn | P | S | Cr | Mo | Ni | Fe |
| 0.28-0.33 | 0.20-0.35 | 0.40-0.60 | 0.035 | 0.040 | 0.8-1.10 | 0.15-0.25 | 0.10 | Rem |
| Tensile strength (MPa) | Yield Strength | Elongation | Brinell hardness (HBW) |
| 560 - 760 MPa | 460 MPa | 20% | 156 - 217 HB |
Common heat treatment methods for AISI 4130 steel plates include:
1. Annealing:
Temperature: 830°C (1525°F)
Process: Slow cooling to room temperature, usually done in a furnace.
2. Normalizing:
Temperature: 900°C (1650°F)
Process: Air cooling.
3. Quenching and tempering:
Quenching temperature: 860°C (1575°F)
Tempering temperature: 400 - 650°C (750 - 1200°F), depending on the desired hardness.
According to GB/T 3077-2015 standard.
1.High strength: able to withstand high loads and stress.
2.Excellent toughness: not easy to break under high stress and impact.
3.Good weldability: easy to process and weld, suitable for various manufacturing processes.
4.Wear resistance: maintains good performance in high wear environment.
5.Corrosion resistance: resists corrosion to a certain extent and prolongs service life.