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alloy steel bar 42CrMo

1000.0~2000.0 USD
Min. Order: 5 Metric Ton
Trade Term: FOB
Payment Terms: L/C, T/T, WU
Supply Ability: 2000 Ton/Tons per Month
Place of Origin: Henan

Company Profile

Location: Zhengzhou, Henan, China (Mainland)
Business Type: Manufacturer, Trading Company
Main Products: Drill Pipe, Tinplate, Galvanized Coil, Steel Pipe, Round Steel Bar

Product Detail

Model No.: 42CrMo
Means of Transport: Ocean
Standard:: ASTM
Technique:: Forged
Steel Grade: 42CrMo
type: Alloy Steel Bar
Place of Origin:: Henan, China (Mainland)
application: Die Steel Bar
Special Use:: Cold Heading Steel
Alloy Or Not:: Is Alloy
Shape: Bar
material:: alloy constructional steel bars 4130
Production Capacity: 2000 Ton/Tons per Month
Packing: According to the customer request
Delivery Date: 20-30 days
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Product Description

 Comparable steel grade
AISI
GB
DIN
JIS
4140
42CrMo
1.7225
SMC440
Chemical composition (%)  
Element
Content (%)
Iron, Fe
96.785 - 97.77
Chromium, Cr
0.80 - 1.10
Manganese, Mn
0.75 - 1.0
Carbon, C
0.380 - 0.430
Silicon, Si
0.15 - 0.30
Molybdenum, Mo
0.15 - 0.25
Sulfur, S
0.040
Phosphorous, P
0.035
Mechanical Properties
Properties
Metric
Imperial
Tensile strength
655 MPa
95000 psi
Yield strength
415 MPa
60200 psi
Bulk modulus (typical for steel)
140 GPa
20300 ksi
Shear modulus (typical for steel)
80 GPa
11600 ksi
Elastic modulus
190-210 GPa
27557-30458 ksi
Poisson's ratio
0.27-0.30
0.27-0.30
Elongation at break (in 50 mm)
25.70%
25.70%
Hardness, Brinell
197
197
Hardness, Knoop (converted from Brinell hardness)
219
219
Hardness, Rockwell B (converted from Brinell hardness)
92
92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only)
13
13
Hardness, Vickers (converted from Brinell hardness)
207
207
Machinability (based on AISI 1212 as 100 machinability)
65
65
Thermal Treatments.  
Annealing: 1550F (840C), hold 2 hours, slow cool 50F(30C)/hr. max. to 1200F (650C), then air or furnace cool. Hardness
BHN 185/200.

Stress Relieving:

Annealed Material: 1100-1300F (595-740C), hold 2 hrs, air cool.

Hardened Material: 50-100F (30-55C) below last tempering temperature, hold 2 hrs, air cool.

Straightening: Best done warm 400-800F (205-425C)

alloy steel bar 42CrMo Hardening: (Atmosphere or Vacuum Furnace)

alloy steel bar 42CrMo Preheat: 1250-1300F (675-705C), equalize

alloy steel bar 42CrMo High Heat: 1550-1600F (840-870C), soak 10 to 30 minutes. For vacuum hardening, use the high side of the high heat
range and soak times.

Quench: Oil quench to hand warm, 150F (650C). Temper immediately. Water quenching from 1550F (840C) may be
used for simple shapes and larger sections. Note vacuum furnaces must have oil quench capability to achieve
comparable results.

Temper: Tempering at 400-1200F (205-650C) for 1 hour per inch (25mm) of thickness at temperature is recommended
(2 hrs min). Air cool to room temperature.  
Welding

Medium carbon steel filler material.

Annealed Material:
alloy steel bar 42CrMo Preheat: 400F (205C)
Post heat: 500-600F (260-315C)

Hardened Material:
alloy steel bar 42CrMo Preheat: 50F (30C) less than last tempering temperature.
alloy steel bar 42CrMo Postheat: 50F (30C) less than last tempering temperature.
Production Equipment
alloy steel bar 42CrMo
Processing Equipment
alloy steel bar 42CrMo
Black Steels
alloy steel bar 42CrMo
Peeling Steels
alloy steel bar 42CrMo
finished steel
alloy steel bar 42CrMo
Testing Equipment
alloy steel bar 42CrMo
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