This standard applies to stainless steel wire rod for welding. GB/T 4241-1984 Stainless steel wire rod for welding GB/T4241-1984 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Stainless steel wire rods for welding
Stainless steel wire rods for welding This standard applies to stainless steel wire rods for welding. Category, grade
Wire rods are divided into three categories according to their organization. Their categories and grades are listed in Table 1. Table 1 Category and grade
Ferrite type
Martensite type
2 Size, shape
2.1 The diameter range of wire rods is 5.5~12.0mm. Brand
HoCr21 Ni10
H 00Cr21 Ni10
H1Cr24 Ni13
H1Cr24 Ni13 Mo2
H1Cr26Ni21
HoCr26Ni21
H0Cr19 Ni12 Mo2
H00Cr19Ni12 Mo2
H00Cr19Ni12Mo2Cu2
H0 Cr20 Ni14 M03
HOCr20Ni10Ti
HoCr20Ni10Nb
H1 Cr21 Ni10 Mn6
HoCr14
H1Cr17
H1Cr13
HiCr5Mo
UDC 669.14.018
.821 - 41 :621
.888.4
GB 4241~-84
Replace GB1300—77*
2.2 The diameter of the wire rod and its allowable deviation shall comply with the provisions of GB702---72 "Hot-rolled round steel and square steel varieties". 2.3 The ovality of the wire rod shall not exceed 75% of the diameter tolerance. 3
Technical requirements
3.1 Chemical composition
3.1.1 The melting chemical composition of the steel for wire rod shall comply with the provisions of Table 2. * Stainless steel part.
National Bureau of Standards released on 1984-03-26
Implemented on 1985-03-01
4241—84
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GB 4241—84
3.1.1.1 According to the requirements of the purchaser, the chromium content of H0Cr21Ni10, HooCr21Ni10 and H0Cr20Ni10Nb can be specified as follows: Cr ≥ 1.9 × Ni%.
3.1.1.2 H1Cr17 is allowed to contain 0.60% Ni. 3.1.1.3 H1Cr13 is allowed to contain 0.60% Ni and ≤ 0.60% Mo. 3.1.2 The allowable deviation of the chemical composition of the finished wire rod shall comply with the provisions of Table 3 of GB222-84 "Steel Chemical Analysis Sample Sampling Method and Allowable Deviation of Chemical Composition of Finished Products". www.bzxz.net
3.2 Delivery Status
3.2.1 The wire rod is supplied in hot-rolled state.
3.2.2 According to the requirements of the purchaser, the wire rod can be delivered after pickling after hot rolling or heat treatment after hot rolling. 3.3 Surface quality
The surface of the wire rod shall not have harmful defects such as cracks, folds, scars and inclusions. If there are any of the above defects, they must be removed. The removal depth shall not exceed the diameter tolerance. However, individual scratches, pits, pits and protrusions with a depth or height not exceeding half of the diameter tolerance are allowed. 3.4 The macrostructure of the steel shall be inspected on the steel bar or wire rod. There shall be no shrinkage holes, bubbles, inclusions and cracks visible to the naked eye on the cross-section acid-immersed macro-magnification test piece.
Inspection rules and test methods
The acceptance of wire rods shall be carried out in accordance with GB2101-80 "General Provisions for Acceptance, Packaging, Marking and Quality Certificate of Steel Sections". 4.1
4.2 The sampling quantity and test method for wire rod inspection shall comply with the provisions of Table 3. Table 3 Sampling quantity and test methods for wire rods
Inspection items
5 Packaging, marking and quality certificate
Sampling quantity
2 pieces (equivalent to sampling from the head of a steel ingot
)
The packaging, marking and quality certificate of wire rods shall comply with the provisions of GB2101-80. Additional notes:
This standard was proposed by the Ministry of Metallurgical Industry of the People's Republic of China. This standard was drafted by Dalian Steel Plant and the Standardization Institute of the Ministry of Metallurgical Industry. The main drafters of this standard were Chen Mengguang, Wu Wunan, Yang Zhongxing and Xu Xiaoqian. Test method
Caliper of corresponding accuracy
GB 226 --77
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