6Cr4W3Mo2VNb T21386 T20432 65Nb - GB /T 1299-2014

6Cr4W3Mo2VNb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	W	V	Nb
Minimum Value	0.6	-	-	-	-	3.8	1.8	2.5	0.8	0.2
Maximum Value	0.7	0.4	0.4	0.03	0.02	4.4	2.5	3.5	1.2	0.35

* Melting Method: Electric Arc Furnace + Vacuum Degassing

6Cr4W3Mo2VNb Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing	≤255
sample	Quenching	HRC ≥60

New and Old Grade Replacement List

Corresponding Standard	Grade
GB /T 1299-2014	Grade China ISC Other Name Other Name
GB /T 1299-2025	Grade China ISC

6Cr4W3Mo2VNb Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!