10MoWVNb A66102 - GB 6479-2000

Grade	10MoWVNb
China ISC	A66102
Corresponding Standard	GB 6479-2000 Seamless Steel Tubes for High-Pressure Chemical Fertilizer Equipments
Classification	Alloy Steel

10MoWVNb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^①	Ni ^①	Cu ^①	Mo	W	V	Nb
Minimum Value	0.07	0.5	0.5	-	-	-	-	-	0.6	0.5	0.3	0.06
Maximum Value	0.13	0.8	0.8	0.03	0.03	0.3	0.3	0.2	0.9	0.9	0.5	0.12

10MoWVNb Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Normalizing + tempering , or high-temperature annealing	470~670	≥295	≥19	KU2 ≥62

• When the final rolling temperature of hot-rolled pipes meets the normalizing temperature, normalizing can be used as a substitute.
• Steel pipes with an outer diameter d≥57mm and a wall thickness T≥14mm shall undergo U-notch impact tests as standard specimens. The evaluation of impact test results shall be in accordance with the provisions of GB/T 17505.
• Except for 12Cr2Mo, for other grades, when the wall thickness T is greater than 16 to 40mm, the yield point is allowed to decrease by 10MPa.

* Normalizing + tempering NT, or high-temperature annealing: normalizing at 970°C to 990°C, tempering at 730°C to 750°C, or high-temperature annealing at 800°C to 820°C.

10MoWVNb Corresponding Standards(Same grade name, different standards)

1	GB 6479-2013
	10MoWVNb A66102
2	GB 6479-2000
	10MoWVNb A66102

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