This standard specifies the grades, ordering requirements and technical conditions of high manganese steel castings. This standard is applicable to high manganese steel castings cast in sand molds. JB/T 6404-1992 Large high manganese steel castings JB/T6404-1992 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
Large
Type
-
Theme content and scope of application
High
Manganese||tt| |SteelWww.bzxZ.net
Castings
This standard specifies the grades, ordering requirements and technical conditions of high manganese steel castings. This standard applies to high manganese steel castings cast in sand molds. 2 Reference standards
Chemical analysis methods for steel and alloys
GB223
GB228
GB229
GB231
3 Ordering requirements||tt| |Metal Tensile Test Method
Metal Charpy (U-notch) Impact Test Method Metal Brinell Hardness Test Method
3.1 The purchaser shall specify the name, grade, and delivery of the casting in the order contract Status and supply quantity. 3.2 The buyer should provide ordering drawings that have been jointly approved by both parties. 3.3 When the demander puts forward special requirements or other supplementary requirements, they should be agreed upon by both parties. 4 Technical conditions
4.1 Chemical composition
The chemical composition of high manganese cast steel should comply with the provisions of Table 1. Table 1 Chemical composition of high manganese cast steel
Elements
Brand
ZGMn13-1
ZGMn13-2
ZGMn13-3
ZGMn13-4
ZGMn13Cr
ZGMn13Cr2
ZGMn13Ni4
ZGMn13Mo
ZGMn13Mo2
C
1.10~1.50
si
0.30
～1. 00|| tt||[1. 00-1. 40
0.90~1.30
0.90~1.20
1.05~1. 35
0.70~1.30
1.05~1.45
0.30
0.80
0.30
1.00
1.00
4.2 Manufacturing
4.2.1 Steelmaking The method and casting process are determined by the supplier. Mn
11.00
P
o.090
≤0.080
~14.00
0.070
11.5||tt ||～14.0
4.2.2 Castings must be water toughened in strict accordance with the water toughening treatment process. Approved by the Ministry of Mechanical and Electronic Industry of the People's Republic of China on July 14, 1992 188
0.050
JB/T 6404--92
Cr
0.300.75||tt| |.50~~2.50
N
3.00~-4.00
%
Mo
0. 90~1.20
1, 80~-2.10
Implemented on 1993-07-01
4.3 Mechanical properties
JB/T 6404-92
After water toughening treatment, the mechanical properties of the sample should be Comply with the requirements of Table 2. Table 2
Mechanical properties of high manganese cast steel
group
brand
number
ZGMn13-1
energy||tt| |ZGMn13-2
ZGMn13-3
ZGMn13-4
ZGMn13Cr
ZGMn13Cr2
Casting surface quality
4.4||tt| |p
MPa
637
637
686
735
490
655~1000||tt| |%
20
20
25
35
30
27~63
Aku||tt| |J
184
184
184
The surface of the casting should be smooth. Loot, succulent, sticky sand, etc. must be removed. No cracks allowed. 4.5 Metallographic structure
Metallographic structure inspection shall be determined according to the agreement between the supplier and the buyer. 4.6 Casting size, geometric shape and weight deviation Casting size, geometric shape and weight deviation shall comply with the provisions of Table 3, Table 4, Table 5, Table 6, Table 7 and Table 8. Table 3 Casting size deviation
Casting photo
Large size
500
>500
～1250
>1 250||tt ||～3150
>3150
Casting installation
position
position
installation surface
non-installation surface
Installation surface
Non-installation surface
Installation surface
Non-installation surface
Installation surface
Non-installation surface
120||tt| |+2.5
3.0
+3.0
-2. 5/
±3.0
+2. 5
3.0|| tt||++3.0
2.5/
±3.0
+3.0
3.5
-3.5
.0||tt ||±4.0
+3.0
3. 5
+3.5
-3.0/
±4.0
>120|| tt||~260
+2.5
3.0
+3.0
—2. 5
±3.5
+2.5|| tt||3.0
+3.0
2.5
±4.
+3.0
-4.0
4.0
3.0／
±4.5
+3.0
4.0
+4.0
3. 0
±5.0
> 260
~500
+3.0
4.0
1+4.0】
3. 0
±4.0
+3.0
4.0
+4.01
3.0
5. 0
+5.0
.5
±5.0
+3.5
5. 0
+5.0
3.5
±5. 5
Note: Values ??in brackets are applicable Make an assembly surface inside the piece. Base
>500
800
+4.0
5.0
+5.0
4.0
±6.0||tt ||+4.0
+5.5
0
±6.5
+5.0
-6.0
-+6.01||tt| |-5. 0／
±7.0
foot
>800
inch
HB
229
220
>1 250
>2 000
1250
+5.0
7.0
-+7.01
5.0/
±7.0
6.0
7.0
7.01
6.07
±8.0
+6.0
-8.0
-+ 8.0
-6.01
±9.0
~2000
+6.9
8.0
+ 8.0
±10.0
F6.0
9.0
+9.0
6.0/
±11.0
3150| |tt||+6.0
10.0
10.01
6.0
±12.0
+6.0
12.0
1-+12.01
6.0
±13.0
mm| |tt||>3 150
-6. 0
14.0
(+14.0)
6.0
±16.0
189
Diameter or hole width
Limit deviation value
Basic size of casting
Limit deviation
Difference
Basic size of casting||tt| |Flatness
Medium (+)
Medium ()
Basic size of casting mm
Limit deviation %
Casting weight kg
Limit deviation %
Table 4
JB/T 6404-92
Dimensional deviation of cast holes (including semi-circular holes, square holes, notches, etc.) 30
+2| |tt||>30～60
+3
Table 5 Dimensional deviation between hole and hole or hole and edge distance 120
±1.5
>120~260
±2.0
Table 6
200
2
3
300
0.8
50
8
4.7
Repair welding and correction of castings
>260～500
±3.0
Flatness deviation||tt ||>200～500
5
Table 7
roundness error
>300～600
0.6
Table 8| |tt||>50~150
7
>500~~~800
±4.0
>60~~100
-|| tt||1
>800~~1 200
±5.5
>5001200
6
8
>600~1 200
0.5
Weight deviation
>150-～300
>1 200~2 000
0.4
>300～800
1>800~1 200
4.5
mn
mtm
1 200~2 000
±7.0||tt| |mm
>1200
8
10
>2 000
0.3
>1200
4|| tt|| Casting defects are allowed to be repaired after water toughening treatment. The material of the welding rod should be similar to the material of the casting. Repair welding shall not affect the use and appearance quality 4.7.1
.
2 If the casting is deflected and deformed, cold correction is allowed after water toughening treatment. 4.7.2
5 Test methods and inspection rules
5.1 Chemical analysis
.5.1.1 The chemical composition is inspected heat by heat. The test block should be prepared during the burning and injection process. 5.1.2 Chemical composition analysis shall be in accordance with the provisions of GB223. 5.2 Mechanical properties
5.2.1 The test block for mechanical property test should be cast separately according to Figure 1 or 2 during the injection process, and should be water toughened in the same furnace as the casting. 5.2.2 Tensile test should be according to GB228 Provisions. 5.2.3 The impact test shall be in accordance with the provisions of GB229. 5.2.4 Brinell hardness test shall be in accordance with the provisions of GB231. The test location is determined by the supplier. 5.2.5 For cast holes, sample blocks should be used for passability inspection one by one. 190
6 acceptance items
220
2200
JB/T6404-92
Figure 1
2
Figure 2
6.1 Castings must be inspected for the following items, and the inspection results are used as the basis for acceptance. a.
b,
&
chemical composition;
geometric shape and main dimensions;
hardness;
d, surface quality ,
6.2 Upon agreement between the supply and demand parties, the following items can also be inspected. a
d.
carbides;
inclusions;
mechanical properties;
weight deviation.
Quality Certificate
R15
R12.5
155
115
110
218||tt| |58
5
The quality certificate should include: supplier name, order number, drawing number, name, steel number, furnace number, chemical composition, mechanical properties, etc. 7.1
7.2 Castings should be marked as follows: order number, drawing number, name, steel number, heat number, etc. 7.3 Packaging and shipping shall be agreed upon by both parties. If there is no request from the party, it will be decided by the supplier. Additional notes:
This standard is proposed and administered by the Deyang Large Casting and Forging Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by the Deyang Large Casting and Forging Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafter of this standard is Zhen Bingren.
11
3
>1200
4
Casting defects are allowed to be repaired after water toughening treatment. The material of the welding rod should be similar to the material of the casting. Repair welding shall not affect the use and appearance quality 4.7.1
.
2 If the casting is deflected and deformed, cold correction is allowed after water toughening treatment. 4.7.2
5 Test methods and inspection rules
5.1 Chemical analysis
.5.1.1 The chemical composition is inspected heat by heat. The test block should be prepared during the burning and injection process. 5.1.2 Chemical composition analysis shall be in accordance with the provisions of GB223. 5.2 Mechanical properties
5.2.1 The test block for mechanical properties test should be cast separately according to Figure 1 or Figure 2 during the injection process, and should be water-toughened in the same furnace as the casting. 5.2.2 Tensile test according to GB228 Provisions. 5.2.3 The impact test shall be in accordance with the provisions of GB229. 5.2.4 Brinell hardness test shall be in accordance with the provisions of GB231. The test location is determined by the supplier. 5.2.5 For cast holes, sample blocks should be used for passability inspection one by one. 190
6 acceptance items
220
2200
JB/T6404-92
Figure 1
2
Figure 2
6.1 Castings must be inspected for the following items, and the inspection results are used as the basis for acceptance. a.
b,
&
chemical composition;
geometric shape and main dimensions;
hardness;
d, surface quality ,
6.2 Upon agreement between the supply and demand parties, the following items can also be inspected. a
d.
carbides;
inclusions;
mechanical properties;
weight deviation.
Quality Certificate
R15
R12.5
155
115
110
218||tt| |58
5
The quality certificate should include: supplier name, order number, drawing number, name, steel number, furnace number, chemical composition, mechanical properties, etc. 7.1
7.2 Castings should be marked as follows: order number, drawing number, name, steel number, heat number, etc. 7.3 Packaging and shipping shall be determined by agreement between the supplier and the buyer. If there is no request from the party, it will be decided by the supplier. Additional notes:
This standard is proposed and administered by the Deyang Large Casting and Forging Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by the Deyang Large Casting and Forging Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafter of this standard is Zhen Bingren.
11
3
>1200
4
Casting defects are allowed to be repaired after water toughening treatment. The material of the welding rod should be similar to the material of the casting. Repair welding shall not affect the use and appearance quality 4.7.1
.
2 If the casting is deflected and deformed, cold correction is allowed after water toughening treatment. 4.7.2
5 Test methods and inspection rules
5.1 Chemical analysis
.5.1.1 The chemical composition is inspected heat by heat. The test block should be prepared during the burning and injection process. 5.1.2 Chemical composition analysis shall be in accordance with the provisions of GB223. 5.2 Mechanical properties
5.2.1 The test block for mechanical property test should be cast separately according to Figure 1 or Figure 2 during the injection process, and should be water toughened in the same furnace as the casting. 5.2.2 Tensile test should be according to GB228 Provisions. 5.2.3 The impact test shall be in accordance with the provisions of GB229. 5.2.4 Brinell hardness test shall be in accordance with the provisions of GB231. The test location is determined by the supplier. 5.2.5 For cast holes, sample blocks should be used for passability inspection one by one. 190
6 acceptance items
220
2200
JB/T6404-92
Figure 1
2
Figure 2
6.1 Castings must be inspected for the following items, and the inspection results are used as the basis for acceptance. a.
b,
&
chemical composition;
geometric shape and main dimensions;
hardness;
d, surface quality ,
6.2 Upon agreement between the supply and demand parties, the following items can also be inspected. a
d.
carbides;
inclusions;
mechanical properties;
weight deviation.
Quality Certificate
R15
R12.5
155
115
110
218||tt| |58
5
The quality certificate should include: supplier name, order number, drawing number, name, steel number, furnace number, chemical composition, mechanical properties, etc. 7.1
7.2 Castings should be marked as follows: order number, drawing number, name, steel number, heat number, etc. 7.3 Packaging and shipping shall be determined by agreement between the supplier and the buyer. If there is no request from the party, it will be decided by the supplier. Additional notes:
This standard is proposed and administered by the Deyang Large Casting and Forging Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by the Deyang Large Casting and Forging Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafter of this standard is Zhen Bingren.
11
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