GBT 15

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15 Profile
15 Chemical composition
15 Mechanical Properties
15 Physical Properties
15 Heat treatment
15 Size Availability
15 Relevant products

Profile

This page is mainly introduced the 15 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 15,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
15

Steel Garde:15
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Relevant products:

T30402/X155CrVMo12...

1.4980 Round Bar

SKD11(D2, 1.2379,...

1.4109 / 440A /...

100Cr6 Bearing Steel Strip Coil

AMS 5659 15-5PH forged Flat Bar

D2(Cr12Mo1V1) Hot Rolled Plate

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Q215		China
Q215 B		China
ASTM 1015	ASTM	USA
UNS G10150	UNS	USA
7Mn15Cr2A13V2WMo		China
T31501	UNS	USA
T31506	UNS	USA
T31507	UNS	USA
T15	ASTM	USA
T12015	UNS	USA
CPM Rex T15	AISI	USA
CPM Rex T15HS	AISI	USA
CQ-15	AISI	USA
Stellite 156
Stellite 157
Stellite 158
Stellite 159
1.1525	DIN	Germany
1.1520	DIN	Germany
1.1545	DIN	Germany
1.1554	DIN	Germany
1.1563	DIN	Germany
1.1573	DIN	Germany
115CrV3	DIN	Germany
X6CrMo15-5	DIN	Germany
X155CrVMo12-1	DIN	Germany
115W8	DIN	Germany
15NiCr14	DIN	Germany
15NiCr18	DIN	Germany
30WCrV15-1	DIN	Germany
X6NiCrTi26-15	DIN	Germany
X15CrMoCoV10-10-5	DIN	Germany
S18-1-2-15	DIN	Germany
ST15E	JIS	Japan
ST15E	JIS	Japan
AC815	JIS	Japan
AC815	JIS	Japan
BT15		UK
BT15		UK
BM15		UK
BM15		UK
35NiCr15	AFNOR	France
35NiCr15	AFNOR	France
X15CrNiSi25-20	AFNOR	France
X15CrNiSi25-20	AFNOR	France
X15NiCrSi37-18	AFNOR	France
X15NiCrSi37-18	AFNOR	France
U15	JIS	France
U15	JIS	France
ВК15	ГОСТ	Russia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	675～645	σb/MPa
Yield Strength	631	σ 0.2 ≥/MPa
Elongation	17	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	144～403	-
HRC	30	-

Physical Properties

Thermal expansion	25-07	e-6/K
Thermal conductivity	10-78	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6524-8528	째C
Density	5540-2817	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
15 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk