Home > Products > Cold Work Tool Steel > Peeled / Peeled AISI S7 Mold Steel Hot Rolled Steel Round Bar For Punch / Chisel
Peeled / Peeled AISI S7 Mold Steel Hot Rolled Steel Round Bar For Punch / Chisel
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Product Details
Brand Name: | NFCase | Place of Origin: | China | Model Number: | AIA-1 |
Product Description
Certification:CE,FCC,MSDS
ASTM A681 AISI S7 Cold Work Tool Steel Bar for Punch , Chisel , Blanking Die
Steel Grade: |
S7 |
Application: |
Tool Steel, Mold Steel |
Shape: |
Round bar |
Standard: |
AISI, DIN, JIS, GB |
Dimension: |
Φ10 – 600 mm |
Surface: |
Black, Peeled, Turned, Grinded |
Technique: |
Hot rolled, Forged |
Ultrasonic Test: |
100% UT Passed |
Description:
◆ Equivalence
AISI / SAE |
DIN / W.Nr |
JIS |
GB |
S7 |
1.2357 |
---- |
---- |
◆ Chemical Composition (%)
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
0.45 0.55 |
0.20 1.00 |
0.20 0.80 |
≤ 0.030 |
≤ 0.030 |
3.00 3.50 |
1.30 1.80 |
0.20 0.40 |
◆ Dimensions
Hot Rolled |
Forged |
|
Diameter (mm) |
10-130 |
60-600 |
Length (mm) |
2000-5800 |
2000-5800 |
◆ Delivery Condition
EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤225HB, Black surface
or Machined surface (Peeled, Turned, Grinded), UT 100% Passed
◆ Characteristics
1. It is a shock resisting tool steel with excellent toughness and high strength, along
with medium wear resistance.
2. It has maximum shock resistance and high compression strength, which gives it
good deformation resistance in use, while retaining good toughness.
3. Easy to machine in the annealed condition and can be readily heat treated, can be
quenched in air, exhibiting minimal distortion on hardening.
◆ Applications
Typical applications for S7 tool steel are punches, chisels, blanking dies, forming dies,
cold and warm header dies, shears, compression dies, hobbed dies, high hardness
plastic molds, zinc die casting dies, gripper dies, etc.
◆ Heat Treatment
Annealing |
710 to 750°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. 225 HB.
Stress relieving |
Approx. 650°C
Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or
in complex shapes.
After through heating, hold in neutral atmosphere for 1-2 hours.
Hardening |
870 to 900°C / Oil
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 58 - 62 HRC
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 average hardness figures to be obtained, please refer to the tempering chart.
For certain cases we recommend to reduce tempering temperature and in crease
holding time.
What we can offer?
We offer a wide range of steel products in a wide variety of dimensions and executions,
acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
-- 50,000 tons Stock
-- 7 warehouses and branches
-- 47 sets of
Contact Us
- Ningbo Ningshing Special-Steel Group Co., Ltd.
- Contact nameMs. Elle Wang
- Phone86-574-55711809
- AddressNo.25 Hongxiang Rd A area Industry Hongtang Jiangbei Yulin,Shaanxi
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