Hot work tool steel;It is relatively low in carbon content and has good toughness and deep hardens by air quench from heat treatment.Good combination of toughness, hardness and wear resistance in hot.Resistance to softening and to cracking.
Enduse = Highly stressed structural parts such as aircraft landing gear.Tools for hot forging of light metal. Pressure die casting tools. Dies, mandrels, punchers, knives, moulds.
Chemical Composition:
Grade | Standard | C | Si | Mn | P≤ | S≤ | Cr | Mo | V |
1.2343 | DIN | 0.33-0.41 | 0.80-1.20 | 0.25-0.50 | 0.025 | 0.015 | 4.80-5.50 | 1.10-1.50 | 0.30-0.50 |
H11 | AISI/SAE | 0.33-0.43 | 0.80-1.20 | 0.20-0.50 | 0.025 | 0.015 | 4.75-5.50 | 1.10-1.60 | 0.30-0.60 |
SKD6 | JIS | 0.32-0.42 | 0.80-1.20 | ≤0.50 | 0.025 | 0.015 | 4.50-5.50 | 1.00-1.50 | 0.30-0.50 |
Heat Treatment: annealed
Hardness: max. 229 HB
Surface: surface flaws/cracks if any are removed by polishing. cleaning marks/scale pitting/peripheral decarburisation within the standard machining allowance is allowed.
US Test: SEP 1921 group 3, class D/d
Degree of Purity: DIN 50602, K4 max. 20
Microstructure: soft annealed / acc. to SEP 1614, max. figures as follows:
segregation = SA1-SA4; SB1-SB4;SC1-SC4;SD1-SD4
microstructure = GA1-GA5; GB1-GB4;GC1-GC2;GD1-GD2;GE1
Test Certificate: EN 10204/3.1 with chem. analysis,hardness HB,heat treatment,US test,etc.
Round Bar: Ø12-500mm Flat Bar: 12-500x100-750mm
Contact: Tom Liu
Phone: 15972351113
Tel: 0714-6556161
Email: tom@zxspecialsteel.com
Add: No.143 The Second Xinjian Village, Huangshi City, Hubei Province,P.R.CHINA
