GB/T 15008-1994 Corrosion resistant alloy rods

GB/T 15008-1994 Corrosion Resistant Alloy Rod GB/T15008-1994 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Corrosion-resistant alloy bars
Currosion-resisting ailay bars CB/T 15008—94
GIn 27286
This standard applies to hot-rolled and forged nickel-based and iron-nickel-based corrosion-resistant alloy bars (hereinafter referred to as bars). Its chemical composition also applies to ingots and bads. 1.1 Size and shape of hot-rolled bars shall comply with the provisions of (13702: 86% hot-rolled round steel and square steel size, shape, weight and allowable deviation". The size allowable deviation and curvature shall comply with the relevant provisions of Group 2. 1.2 The size and shape of forged materials shall comply with the provisions of CB9C8-87 forged round steel and square steel size, shape, weight and allowable deviation. 2 Technical requirements
2.1 Brand designation and chemical composition
2.1.1 The brand and chemical composition (melting analysis) of the alloy shall comply with the provisions of Table 1. 2.1.2 When conducting chemical analysis of finished products, deviations from the provisions of Table 1 are allowed, but the maximum allowable deviation value complies with the current GB/T 15007--91 Corrosion Resistant Alloy Grades". 2.2 Delivery Status
The material is delivered in hot rolled (forged) or economically treated state. If delivery in solid state is required, it should be indicated in the contract. The recommended solidification temperature is shown in Table 2.
2.3 Mechanical Properties
2.3.1 For bars delivered in hot rolled (forged) state, the sample rough ring needs to be solution treated, and the mechanical properties of the sample rough ring made by solution treatment should meet the requirements of Table 2. The performance indicators in Table 2 are applicable to bars with a size of less than 80mm. Bars with a size greater than 80mm are allowed to be rolled (forged) to 8Cmm and then sampled for inspection. The total performance indicators should meet the requirements of Table 2. 2.3.2 For the materials delivered in the solution-treated state, the specimens shall be cut directly from the bars in the delivery state for inspection, and their mechanical properties shall comply with the provisions of Table 2. However, for bars with a lower dimension greater than 80mm, their mechanical properties shall be determined by negotiation between the supply and demand parties. 2.3.3 The rough size of the specimen is 25mm. For bars with a size of less than 25mm, the original size bars can be used to directly make specimens for inspection.
2.3.4 For bars with a size of less than 16mm, impact energy inspection shall not be carried out. 2.4 There shall be no residual shrinkage cavities, bubbles, inclusions or cracks visible to the naked eye on the transverse acid-etched macrostructure specimens of macrostructures. 2.5 Surface texture
2.5.1 Use a tumbler to The processed bar surface shall not have cracks, folds, scars, inclusions and other defects that are harmful to use. If there are any of the above defects, they must be removed. The removal depth is calculated from the actual size of the material. For samples with a maximum size of no more than 80mm, it shall not exceed the card of the dimensional tolerance. For samples with a size greater than 80-140mm, it shall not exceed the dimensional tolerance. For samples with a size greater than 140mm, it shall not exceed 5% of the size. When there are no special provisions, individual small scratches, pits, indentations and other defects that do not exceed half of the maximum tolerance from the actual size are allowed. Approved by the State Bureau of Technical Supervision on April 4, 1994
Implementation on May 1, 1994
..com Alloy grade
0. 05 ~- 0. 10
.0. 05
.0.015
19. 0 ~23. 0
19. 0-- 23. 0
G/T15008-94
30.0~35.0
30. 0~-35. 0
24. 0~~26. 5 1 34. 0 ~-37. 119.0--21.0
1 42. 0--44. 0
25. 0--27. 0
19.5~23.5
19, 0 ~21. 0
28. 0~31. 0 1
14. 0~ 17. 0
21.0~25.0
35. 0 ~- 38. 0
27. 0~31. 0
14. 0~-17, 0
17.0~19. D
14. 5-- 16. 3
1 14. 5 ~16. 5
14. 0--18. 0
20. 0--23. 0
19. 0--21. 0
19. 0~21. 0
34. 0-#7. 0
58.0~46.0
32. 0~38. 0
6. 6 ~ 10. 0
10.0-15.0
7. 0 ~ 1. 0
4. 0 ~- 6. 0
4. 0 -- 7. 0
4. 0~7. 0
5. 0~9. 0
! 12. 5 ~13. 5
2. 0~-3. 0
2. 0~-3, 0
26. 0~-30. 0
26. 0~30. 0
2. 0~~3. 0
16. 0~18. 0
15. 0--17. 0
15. 0~17. 0
14.0~[7. 0
2. 0 ~~3. 0
3. 0 - 4. 5
3. 0 ~ 4. 5
3. 0~~4. 0
1. 5~3. 0
3. 0~4. 0
1. 0 -- 2. 0
0. 15 ~0. 60 0. 15 ~ 0. 60
0. 15-~0. 600. 15~-0. 60 | | tt | 00
0. 40~0. 90
0. 4 ~~0. 5
0. 40~-1. 002.25~-2. 75
3. 15 ~ 4. 15
0. 70~1.20
GB/T 15008—94
0. 80 ~- 0. 700. 50 ~ 1. 50
0. 20~0. 40 | | tt | 100~-1 170
1000---1050
1150~-1 200
1000~1050
1000~1050
10u0~:1050
1050~1 100
1000-~050
1 100~-1 150
1 080 -- 1 120 | 0~-10
1100～1150
1050-1100
1080~100, water cooling,
750~780×8 hours,
air cooling,621~65×H
hours, air cooling
CE/T15008-94
Tensile test
Anti-spot strength
Steroid strength
Impact test
Degree test
2.5.2 The surface of the material used for cutting is allowed to have individual small cracks, pits, scratches and pits, but the depth is measured from the nominal foot 10, and the foot is not more than 10mm.The tolerance of the dimension should not exceed half of the tolerance: the dimension of the material with a size greater than 0-140 mm should not exceed the tolerance of the dimension: the dimension of the material greater than 140 mm should not exceed 1% of the dimension. 2.6 Special requirements
Under the condition of technical basis, according to the requirements of the purchaser, special requirements such as chemical composition, high temperature mechanical properties, grain size and non-metallic inclusions can be supplemented, or special inspections such as skin corrosion test and non-destructive damage can be supplemented. However, the specific requirements and test methods should be determined by negotiation between the supply and demand parties.
3 Test methods
The test methods and sampling rules of the companion materials should comply with the provisions of Table 3. Inspection itemsbzxz.net
Chemical cut-off
Low red
Pulling test
Impact test
Pulling test
Hardness test
Light impurities
Surface quality room
4 Acceptance rules
GB/T15008-.94
Test method
Gh:T 11939.2
GB 228—87
GH229—84
GB4338-81
OH 230—83
YB25— 77
Also use the base
Sampling position and requirements
GB222-84
When the ten-alloy chain head
Different support materials (bad)
GB 6397-86
f.5. 65~, standard test end
Different support block
GB 229-84
GB2975-82
Different support materials
Can be carried out in the tensile test specimen 1.
Different support materials
Sampling quantity
4.1 The general provisions for the acceptance of bars shall comply with the provisions of GB2101-80&General provisions for the acceptance, packaging, marking and quality certificate of steel.
4. 2 The test results of chemical composition, mechanical properties, macrostructure, surface quality, shape and size shall all comply with the provisions of the relevant documents or supplementary agreements of this standard. However, if the tensile test, impact test and hardness test are agreed by the purchaser, part or all of them may be omitted. 4.3 If the supplier has reliable evidence to ensure the quality of the finished product, it is allowed to replace the larger one with the smaller one or replace the material with the other one for the various test results of the same smelting furnace number.
5 Packaging, marking and certificate
The packaging, marking and quality certificate of materials shall comply with the provisions of ISO 2101-80, and the packaging shall comply with the relevant provisions of Class 2 machinery packaging.
Additional remarks:
This standard was issued by the Ministry of Metallurgical Industry's Standard Research Institute. This standard was drafted by Dalian Steel Plant.
The level mark of this standard is GB/T1500891I
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