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12% Manganess Steel Plate
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Product >> Machinery Steel/ Engineering Steel >>
 
Machinery Steel  1045
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
CK45
1045
S45C
0.42 to 0.48
0.20 to 0.35
0.60 to 0.90
< 0.030
< 0.035
-
-
-
-
-
-
-
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
Normalized or untreated
370 - 490
690 - 780
830 - 860
Water, Brine, Oil
180 - 400
45 - 55

CHARACTERISTIC
1045 is a medium carbon normalized to about 200 HB with tensile strength 630-780 N/mm2. Available for full hardening or case hardening by induction. Excellent forge ability

APPLICATION
Forged products such as hand tools, fasteners and fixtures, medium stress shaft mould, general purpose.

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Machinery Steel  5919
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
15CrNi6
3115
SNC15
0.14 to 0.19
0.40 to 0.60
0.60 to 0.90
< 0.035
< 0.035
-
1.40 to 1.70
-
1.40 to 1.70
-
-
-
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
Soft Annealed 217HB
540-685
780 - 1,180
Carburizing 880-980 Hardening 830-870
Oil, Air, Salt, Bath
150 - 200
Surface : 58-60
Core : 25-32

CHARACTERISTIC
5919 is a low carbon low alloy steel with tensile strength 780-1,060 N/mm2 (After Heat Treatment), Available for case hardening by carburizing (Surface hardness 58-60 HRC, Core hardness 25-32 HRC)

APPLICATION
Structural parts requiring good wear resistant surface and a very tough core e.g. stems, shafts, axles, connecting rods, crank shafts, pinion gears and machinery parts.

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Machinery Steel  6587
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
18CrNiMo7-6
4820
SNCM 420
0.15 to 0.21
<0.40
0.50 to 0.90
0.025
0.015
-
1.50 to 1.80
0.25 to 0.35-
1.40 to 1.70
-
-
<0.30
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
Soft Annealed 229HB
685-835
900 - 1,200
Carburizing 880-980 Hardening 830-870
Oil, Air, Salt, Bath
150 - 200
Surface : 58-60
Core : 25-33

CHARACTERISTIC
Nickel-molybdenum alloy steel. Alloyed case hardening steel for heavy and high strained gear parts with high demands on toughness at core tensile strength of 1050-1350 N/mm2

APPLICATION
Severely stressed components for mechanical engineering and automobile industry.

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DIN 17100 ST 52-3 N HIGH TENSILE STEEL BAR

C
Si
Mn
P
S
Nb
Al
N

max 0.20

0.15-0.50

max 1.60

max 0.035

max 0.035

0.02-0.04

max 0.02

max 0.009

CHARACTERISTIC
Steel grade ST 52-3 N is a low carbon, high strength structural steel which can be readily welded to other weldable steel. With its low carbon equivalent, it possesses good cold-forming properties. The bar is supplied in normalized or control-rolled condition .

APPLICATION
Machinery parts which weldable steels are needed, mobile equipment, crane, boom, chassis, anchor bolts, connecting rod, bridges and most structural activities.

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Machinery Steel  4130HT
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
25CrMo4
4130H
SCM 430H
0.27 to 0.33
0.15 to 0.35
0.30 to 0.70
< 0.04
< 0.03
-
0.75 to 1.20
0.15 to 1.25
< 0.25
-
-
< 0.35
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
Pre-Hardened 
(Q & T)
197 - 237 HB
min 518
min 655
870-880
Oil, Gas
300 - 700
230 - 450 HB 

CHARACTERISTIC
4130HT It is a general purpose high tensile steel applicable for all structural parts requiring medium to high mechanical strength. It is weldable, but because of its fairly high harden ability, preheating and postheating must be used.

APPLICATION
Machinery structure and motion transmission parts like valves, stems, shafts, axles, connecting rods, crankshafts, pinions, gears, etc. Suitable for parts, which need both high strength and possibly to weld.

------------------------------------------------------------------------------------------

Machinery Steel  4140HT
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
42CrMo4
4140H
SCM 440H
0.37 to 0.44
0.15 to 0.35
0.65 to 1.10
< 0.04
< 0.03
-
0.75 to 1.20
0.15 to 1.25
< 0.25
-
-
< 0.35
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
Pre-Hardened 
(Q & T)
255 - 320 HB
550-900
800 - 1,300
Carburizing 820-860 Hardening 880-890
Oil, Water
540 - 680
58-60

CHARACTERISTIC
4140HT  is a hardened and tempered high tensile steel, about 255-320 HB with tensile strength of 800-1,300 N/mm2. Available for full hardening or case hardening by induction.

APPLICATION
High strength structural parts, pinions, axles, crank shafts and connecting rods, gears.

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Machinery Steel  4145 (Oiled Specification)

Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Cr
Mo
0.43 – 0.48
0.15 – 0.35
0.75 – 1.00
≤0.035
< 0.04
0.80 – 1.10
0.15 – 0.25

CHARACTERISTIC
AISI 4145 is low alloy steel containing 0.20% Molybdenum that is widely used particularly throughout oil patch applications. Similar 4140 which has a lower carbon level it has improved hardenability and is more is commonly used in the higher strength ≥110 KSI 0.2% PS condition.

Larger diameters are often supplied with higher molybdenum level, 0.45% max and may be referred to as a “Drill Collar” analysis. The hardenability limitations of this grade(depth to which it will harden/ obtain the specified mechanical properties after heat treatment must always be taken into account when designing and selecting equipment.

APPLICATION
Structural parts of high strength components, cog wheels, pinions, axle arms, connecting rods, axle arbors, gear components, crankshafts, turbine components, etc.

------------------------------------------------------------------------------------------

Machinery Steel  4340HT
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
40NiCr4Mo6
4340H
SNCM 439H
0.37 to 0.44
0.15 to 0.35
0.55 to 0.90
< 0.04
< 0.03
-
0.65 to 0.95
0.20 to 0.30
1.55 to 2.00
-
-
< 0.35
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
Pre-Hardened 
(Q & T)
280 - 360 HB
700-1,100
900 - 1,400
830-860 Flame Hardening 880-890
Oil, Water
540 - 680
50-58

CHARACTERISTIC
4340HT  is a hardened and tempered high tensile steel, about 280-360 HB with tensile strength of 900-1,400 N/mm2. Available for full or case hardening induction higher hardenability than any other grade.

APPLICATION
High stress crank shafts, connecting, rods, axles, tubine, rotors and die holder.

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Martensitic Stainless Steel   K4006
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
X12Cr13
410
SUS410J1
0.08 to 0.15
< 1.00
< 1.50
< 0.04
< 0.03
-
11.5 to 13.5
-
< 0.75
-
-
-
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Austenitizing Temperature
Quenching Medium
Tempering Temperature
Herdness After Tempering
(Q & T)
197 - 237 HB
Rpo.2 450 min
650 - 850
950 - 1,000
Oil, Air
680 - 780

CHARACTERISTIC
K4006  is basic chromium grade of stainless steel. It combines excellent corrosion resistance with the ability to develop hardness and mechanical properties by conventional heat treating method.

APPLICATION
For applications requiring good mechanical properties and involving corrosive conditions that are not too severe,such as valve parts, cutlery, food industry, pump rods and pistons etc.

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Precipitated Stainless   K4548 (17-4 pH)
DIN
AISI
JIS
Chemical Composition / ส่วนประกอบทางเคมี
C
Si
Mn
P
S
Co
Cr
Mo
Ni
V
W
Cu
X5CrNi Nb 17-4-4
630 HH 
SUS630
< 0.07
< 1.00
< 1.00
< 0.025
< 0.025
-
15.0 to 17.5
Nb 0.15 to 0.45
3.0 to 5.0
-
-
3.0 to 5.0
.
Delivery Condition
Yield Strength N/mm2
Tensile Strength N/mm2
Elongation Temperature
Reduction of Area
Precipitated Hardening and Temper 277 HB
min 726
min 930
min 16%
min 50%

CHARACTERISTIC
K4548  It is stainless steel that passed solution treated and tempered twice at temperature of 1150  F (327 C). The nickel in 17-4 pH increases its notch toughness, even in low temperature service. Combination of Ni and Cr results in corrosion and chemical resistant properties.

APPLICATION
High strength components in H S and CO service. Ex, valves, stems, pistons,etc.

------------------------------------------------------------------------------------------

 
 
 
 
 
LEONG JIN SPECIAL STEEL (THAILAND) CO., LTD.
Formerly Sin Thai Special Steel Co., Ltd.
103/2 Moo 17 Taeparak Rd., Bangsaothong,
Samutprakarn 10540 Thailand.
TEL : 02-705-0930-1, 02-315-1466, 02-330-3101
FAX : 02-705-0932, 02-315-1354 (Sales)
Copyright 2009. LEONG JIN SPECIAL STEEL (THAILAND) CO., LTD. All rights reserved.