ASTM A600 T4
ASTM A600 T4 properties and heat treatment forged piece, Including ASTM A600 T4 application and specifications, We have all specifications，Including ASTM A600 T4 steel plate, ASTM A600 T4 sheet, ASTM A600 T4 square steel, ASTM A600 T4 flat bar,ASTM A600 T4 round bar,ASTM A600 T4 forgings, we can own production and sales.
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We can produce the ASTM A600 T4 has the following specifications:
Round bar steel: 1mm to 3000mm
Square-shape steel: 1mm to 2000mm
Plate steel:0.1mm to 2500mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
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Chemical composition % of the ladle analysis of grade ASTM A600 T4 and Standards
High-speed tool steel: T4
performance standards: ASTM A600-1992a
Features and Scope:
ASTM T4 is normal tungsten cobalt high-speed steel, the more red hardness and high temperature W18Cr4V slightly higher hardness but lower toughness, quenched, surface hardness up to 63 ~ 66HRC. For high-speed cutting tools, automated machine tools for cutting high strength materials used.
Chemical Composition:
C: 0.70 ~ 0.80 (tolerance: ± 0.01)
Si Si: 0.20 ~ 0.40 (tolerance: ± 0.05) Manganese
Mn: 0.10 ~ 0.40 (tolerance: +0.04) S
S: ≤ 0.030 P
P : ≤ 0.030
Cr-Cr: 3.75 ~ 4.50 (tolerance: ± 0.05)
Ni: to allow the residual copper content of ≤ 0.30
Cu: ≤ 0.25 to allow the residual content of vanadium
V: 0.80 ~ 1.20 (tolerance: ± 0.05) Mo
Mo: 0.40 ~ 1.00 (Tolerance: size ≤ 6, ± 0.05; size> 6, ± 0.10)
W W: 17.50 ~ 19.00 (tolerance: size ≤ 10, ± 0.10; size> 10, ± 0.20) Cobalt Co: 4.25 ~ 5.75 ( Tolerance: ± 0.15)
Mechanical Properties:
Hardness: Hardness Delivery: (other processing methods) ≤ 285HB; (annealing) ≤ 269HB. Quenching and tempering heat treatment system and the sample hardness: ≥ 63HRC
Heat treatment and microstructure specifications:
Heat treatment specifications: quenching, 820 ~ 870 ℃ preheating, 1270 ~ 1290 ℃ (salt bath) or 1280 ~ 1300 ℃ (box-type furnace ) heating, oil cooling, 540 ~ 560 ℃ tempered 2 times 2h.
Delivery status: hot rolling, forging, annealing cold-drawn steel bar to the state of delivery, hot rolling, forging steel bar to annealing + other processing methods (peeling, light pull, polished, or polished, etc.) delivered after processing .
Machining performance
Download ASTM A600 T4 the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>
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.