Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of astm 6f7 45nicrmo16 hot forged annealed steel round bar in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
ASTM 6f7 45nicrmo16 Hot Forged Annealed Steel Round Bar
DIN 1.2767 Cold Work Tool Steel is used for making the highly stressed coining tools, cutlery dies, hobbing tools, cold shear blades for heavy gauge material, plastic moulds.
Dimensions
Hot Rolled Flat: 10-120 x 50-1000 mm
Delivery Condition
EAF+(ESR)
or EAF+LF+VD+(ESR), Hot rolled or Forged, Spheroidizing Annealed, Black
surface or Machined surface, UT SEP1921 Class3 D/d
Equivalence
| AISI / SAE | DIN / W.Nr | JIS | GB |
| ---- | 1.2767 | SKT6 | ---- |
Chemical Composition(%)
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 1.2767 | 0.40-0.50 | 0.10-0.40 | 0.20-0.50 | ≤ 0.030 | ≤ 0.030 | 1.20-1.50 | 0.15-0.35 | 3.80-4.30 |
Characteristics
1. Cold work tool steel with high thoughness and full hardenability, also large dimensions.
2. High impact strength and compressive strength.
3. For oil and air hardening.
4. Good polishability.
45nicrmo16 Heat Treatment
Annealing
610 to 650°C
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C,
further cooling in air.
Hardness after annealing: max. 285 HB.
45nicrmo16 Stress relieving
Approx. 650°C
Slow
cooling in furnace; intended to relieve stresses set up by extensive
machining, or incomplex shapes. After through heating, hold in neutral
atmosphere for 1 to 2 hours.
45nicrmo16 Hardening
840 to 870°C.
Oil, salt bath (300 to 400°C), air. Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness:
53 - 57 HRC in air.
54 - 58 HRC in oil or salt bath.
Tempering
Slow
heating to tempering temperature immediately after hardening/time in
furnace 1hour for each 20 mm of work piece thickness, but at least 2
hours/cooling in air. For certain cases we recommend to reduce tempering
temperature and increase holding time.
The
company owns advanced special steel smelting facilities and forging
processing equipments, the main steel-making equipment include 2 sets of
50t ultra-high power electric arc furnaces,2 sets of 60t LF refining
furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of
1-20t electroslag re-melting furnaces.
The main forging equipments
mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of
high-speed forging units of 800t,1600t,2000t and 4500t respectively.
FAQ:
Q: Are you a manufacturer or merely a trader?
A:
We are group of companies and owned manufacturer bases and trading
company. We specialized in special steel which include alloy structural
steel and carbon steel and stainless steel, etc. All material are
with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A:
Firstly, we can provide the certificates from the third party, such as
TUV, CE, if you need. Secondly, we have a complete set of inspection
system and every process is checked by QC. Quality is the lifeline of
enterprise survival.
Q: Delivery time?
A: We have ready stock
for most of material grades in our warehouse. If the material don't
have stock, the delivery lead time is about 5-30 days after receiving
your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.
Q: Can we visit your company and factory?
A:
Yes, warmly welcome! We can book the hotel for you before you come to
China and arrange our driver to our airport to pick you up when you
come.
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