热处理钢轨技术条件（TB\T2635-2004 英文版）

　　This standard stipulates the technical specifications， test method， inspection rules， etc. for heat treated rails （including off-line heat treatment and on-line heat treatment）.This standard is applicable to full length heat treatment of 50kg/m-75kg/m rails of U71Mn. U75V， U76NbRE. Rails of other types can take it for reference.

暂缺《热处理钢轨技术条件（TB\T2635-2004 英文版）》作者简介

Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Specifications
4．1 Rails
4．2 Chemical Composition
4．3 Profile of Hardened Layer
4．4 Depth of the Hardened Layer
4．5 Hardness
4．6 Microstructure
4．7 Tensile Performance
4．8 External Shape and Allowable Tolerances
4．9 Surface Quality
5 Test Method
5．1 Sampling
5．2 Testing Content， Sampling Locations and Quantity of Heat Treated Rail Samples
5．3 Test for Chemical Composition Analysis
5．4 Test for Profile and Depth of the Hardened Layer
5．5 Hardness Test
5．6 Tensile Test
5．7 Microstructure Test
5．8 Inspection for External Shape and Surface Quality
6 Inspection Rules
6．1 Inspection and Acceptance
6．2 Retest and Judgment
7 Identification， Transportation and Warranty
7．1 Identification
7．2 Transportation
7．3 Warranty