Standard No.:	GJB 3793A-2018
English Name:	Specification for tungsten alloy balls for projectiles
Chinese Name:	弹用钨合金球规范
Professional Classification:	GJB    Professional Standard - Military
Issued on:	2018-11-19
Implemented on:	2019-3-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	130.0
Delivery:	via email in 1 business day

GJB 3793A-2018 Specification for tungsten alloy pellets 1 Scope This specification specifies the requirements for tungsten alloy pellets. This specification is applicable to tungsten alloy pellets manufactured by powder metallurgy. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this specification. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this specification. However, parties using this specification are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) GB/T 3850 Impermeable sintered metal materials and hardmetals - Determination of density GB/T 5318 Sintered metal materials (excluding hardmetals) without notch impact test piece GB/T 7963 Sintered metal materials, excluding hardmetals - Tensile test pieces GB/T 7964 Sintered metal materials (excluding hardmetal) - Tension testing at room temperature GB/T 9096 Sintered metal materials, excluding hardmetals - Impact test method GJB 1077 Specification for tungsten powder for tungsten base high density alloy armor-piercing bullet GJB 1078 Nickel powder for tungsten base heavy metal penetrator GJB 1079 Specification for cobalt powder for tungsten base high density alloy armor-piercing bullet GJB 1081 Iron powder for tungsten-based heavy metal penetrator 3 Requirements 3.1 Raw materials The raw materials, namely tungsten powder, nickel powder, cobalt powder, and iron powder, shall meet the requirements of GJB 1077, GJB 1078, GJB 1079, and GJB 1081, respectively. 3.2 Delivery conditions The products shall be supplied in the as-sintered condition or the as-ground condition. 3.3 Chemical composition The chemical composition of the products shall meet the requirements of Table 1.

Contents Foreword II 1 Scope 2 Normative references 3 Requirements 4 Quality assurance requirements 5 Preparation for delivery 6 Explanatory notes