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1045/50 IHCP® (Sizes over 4-1/2")

Chrome Plated Product

PACIFIC Chrome Plated Bar is typically used for hydraulic cylinder rods. It is stocked in two basic conditions; CPO? (Chrome Plated Only) and IHCP? (Induction Hardened and Chrome Plated). The primary difference is that IHCP? bars are induction hardened to give a hard case on the surface for support to the chrome plating; this minimizes surface damage to the chrome from abrasion and/or impact.

Also, AISI 1045/50 CPO? and IHCP? are both available in standard and high strength properties. Thickness of chrome plating is designated as either Standard (0.0005" min.) or Heavy (0.001" min.).

CPO? bars are also stocked in Acralloy? and Stressproof? grades. Acralloy? offers the strength and toughness of a quenched and tempered alloy steel; Stressproof? gives high strength with free machining characteristics.


Types and grades of PACIFIC Chrome Plated Bar are listed below:

Grade AISI 1045/50
Standard Chrome Plated Only S-CPO?
Heavy Chrome Plated Only H-CPO?
Induction Hardened & Chrome Plated IHCP?
High Strength-SCPO? S-CPO? HS
High Strength-IHCP? IHCP? HS
Grade Stressproof?
Standard Chrome Plated Only S-CPO?
Grade Acralloy?
Heavy Chrome Plated Only H-CPO?

CHEMICAL COMPOSITION
Heat Analysis - ranges and limits %

Grade
AISI 1045/50
C
.43/.55
Mn
.60/.90
P
.040 MAX
S
.050 MAX
Cr
-
Mo
-
Grade
Stressproof?
C
.40/.48
Mn
1.35/1.65
P
.040 MAX
S
.24/.33
Cr
-
Mo
-
Grade
Acralloy?
C
.38/.45
Mn
.75/1.00
P
.035 max
S
.040 max
Cr
.80/1.00
Mo
.15/.25

TYPICAL PROPERTIES
Approximate - not for specification

Grade
AISI 1045/50*
Tensile (psi)
90,000
Yield (psi)
75,000
Elongation
10%
Hardness
179 HB
Machinability
56%
Grade
AISI 1045/50 HS**
Tensile (psi)
115,000
Yield (psi)
100,000
Elongation
9%
Hardness
235 HB
Machinability
56%
Grade
Stressproof?**
Tensile (psi)
115,000
Yield (psi)
100,000
Elongation
8%
Hardness
241 HB
Machinability
83%
Grade
Acralloy?
Tensile (psi)
120,000
Yield (psi)
100,000
Elongation
20%
Hardness
255 HB
Machinability
55%

* Cold drawn properties apply through 4-1/2" diameter; larger diameters have hot rolled properties, i.e., 50,000 psi approximate yield strength. ** ASTM A311, Class B


CHROME PLATING PROPERTIES: CPO? and IHCP?

Grade
Standard
Thickness
.0005" min
Hardness
69 HRC min
Surface Finish
16 RMS max
Grade
Heavy
Thickness
.001" min
Hardness
69 HRC min
Surface Finish
16 RMS max

INDUCTION HARDENED PROPERTIES: IHCP?

Surface Hardness
50 HRC min
Effective Case Depth (to 50 HRC)
.050" min

Shapes and Conditions Available
1045/50 S-CPO? through 5" Diameter
1045/50 HS S-CPO? from 2-1/2" through 4-1/2" Diameter
1045/50 H-SCP? through 4-1/2" Diameter
1045/50 IHCP? 5" and 5-1/2" Diameters
1045/50 HS IHCP? through 4-1/2" Diameter
Acralloy? H-CPO? through 2-1/2" Diameter
Stressproof? S-CPO? through 2" Diameter

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