X7CrNiMoBNb16-16 - Cast Iron and Cast Steel

DIN 17240 (1976) Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications; Replaced by DIN EN 10269:1999

**X7CrNiMoBNb16-16** Application:Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts
Category	Type	Grade	Designations
Grades	Stainless Steels	X7CrNiMoBNb16-16	Germany - DIN , DIN 17240 (1976) - Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications DIN EN 10088-1 - Stainless steels - Part 1: List of stainless steels DIN EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties WB 113/1 (2001) - Heat resistant austenitic rolled and forged steel, X 8 CrNiMoBNb 16 16, WN 1.4986 WB 113/2 (2001) - Heat resistant austenitic rolled and forged steel, CrNiMoBNb X 8 16 16, WN 1.4986

X7CrNiMoBNb16-16 Application:Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts

Category

Type

Grade

Designations

Grades

Stainless Steels

X7CrNiMoBNb16-16

Germany - DIN , DIN 17240 (1976) - Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications
DIN EN 10088-1 - Stainless steels - Part 1: List of stainless steels
DIN EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
WB 113/1 (2001) - Heat resistant austenitic rolled and forged steel, X 8 CrNiMoBNb 16 16, WN 1.4986
WB 113/2 (2001) - Heat resistant austenitic rolled and forged steel, CrNiMoBNb X 8 16 16, WN 1.4986

Chemical composition(mass fraction)(wt.%)
Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si	0.30	0.60
Mn	-	1.50
P	-	0.045
S	-	0.030
Cr	15.5	17.5
Ni	15.5	17.5
Mo	1.60	2.00
B	0.05	0.10
Other	-	Nb / Ta ≥10*C ≤1.20

Chemical composition(mass fraction)(wt.%)

Elements

Min.（≥）

Max.（≤）

Similar

Remarks

0.04

0.10

0.30

0.60

1.50

0.045

0.030

15.5

17.5

15.5

17.5

1.60

2.00

0.05

0.10

Other

Nb / Ta ≥10*C ≤1.20

Mechanical properties of grade X7CrNiMoBNb16-16
Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
834 (≥)	918 (≥)	32	12	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	442

Mechanical properties of grade X7CrNiMoBNb16-16

Proof strength
R_p0.2 (MPa)

Tensile strength
R_m (MPa)

Impact energy
KV (J)

Elongation at fracture
A (%)

Reduction in cross section on fracture
Z (%)

As-Heat-Treated Condition

Brinell hardness (HBW)

834 (≥)

918 (≥)

Solution and Aging, Annealing, Ausaging, Q+T,etc

442

Physical properties of grade X7CrNiMoBNb16-16
Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2	Expansion rate
846 (≥)	963 (≥)	44	13	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	422
345	111	739

Physical properties of grade X7CrNiMoBNb16-16

Property

Density
kg/dm3

Temperature T
°C/F

Specific heat
J / kgK

Thermal conductivity
W/mK

Electric resistance
µΩ·cm

Modulus of elasticity
kN/mm2

Expansion rate

846 (≥)

963 (≥)

Solution and Aging, Annealing, Ausaging, Q+T,etc

422

Temp.
°C/°F

Creep strain limit
(10000h)
(Rp1,0) N/mm2

Creep rupture strength
(10000h)
(Rp1,0) N/mm2

345

111

739

X7CrNiMoBNb16-16 Range of products
Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)WL	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

X7CrNiMoBNb16-16 Range of products

Product type

Products

Dimension

Processes

Deliver Status

Plates / Sheets

0.08-200mm(T)*W*L

Forging, hot rolling and cold rolling

Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting

Steel Bar

Round Bar, Flat Bar, Square Bar

Φ8-1200mm*L

Forging, hot rolling and cold rolling, Cast

Black, Rough Turning, Shot Blasting,

Coil / Strip

Steel Coil /Steel Strip

0.03-16.0x1200mm

Cold-Rolled & Hot-Rolled

Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting

Pipes / Tubes

Seamless Pipes/Tubes, Welded Pipes/Tubes

OD:6-219mm x WT:0.5-20.0mm

Hot extrusion, Cold Drawn, Welded

Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)
Grade	Standard	Country	Application
1.4986	DIN	Germany	Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts
X8CrNiMoBNb16-16	DIN	Germany	Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts
X7CrNiMoBNb16-16	DIN	Germany	Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts

Cross Reference Table(Equivalent Grade)

Grade

Standard

Country

Application

1.4986

DIN

Germany

Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts

X8CrNiMoBNb16-16

DIN

Germany