Name: rotary tillage coulter knife raw material 60Si2Mn high carbon high quality but with low price spring steel flat bars
Brand: Daqiang
Availability: InStock

Product Details

60Si2Mn spring steel

Our Advantages:

1.Tianjin Daqiang Steel Co.,Ltd. is a factory,combination of steel making,steel rolling,and making leaf spring.

2. We have advanced testing equipment.

3. We can produce different steel materials according to the chemical composition of your request.

Product Description

Flat steel section:

SUP9A Flat steel chemical composition table:

Standard	Brand	Chemical composition
		C	Si	Mn	Cr	P	S
		C	Si	Mn	Cr	≤
GB/T1222-2007	60CrMnA	0.56-0.64	0.17-0.37	0.70-1.00	0.70-1.00	0.025	0.025
JIS G4801-2005	SUP9A	0.56-0.64	0.15-0.35	0.70-1.00	0.70-1.00	0.030	0.030
EN 10089:2002DIN	60Cr3	0.55-0.65	≤0.40	0.70-1.00	0.60-0.90	0.025	0.025
ASTM A322-91ASTM A304-05	5160	0.56-0.61	0.15-0.35	0.75-1.00	0.70-0.90	0.035	0.040

Spring flat steel SUP9A performance requirements:

Standard	Brand	Heat treatment			Mechanical Properties				Hardness ≤
Standard	Brand	Quenching (°C)	Medium	Tempering (°C)	σs (Mpa)	σb (Mpa)	δ (%)	ψ (%)	Hardness ≤
GB/T1222-2007	60CrMnA	830~860	Oil	460~520	1080 (σ_0.2)	1225	9	20	321
ASTM A322-91 / ASTM A304-05	SAE5160H	830~860	Oil	460~520	1080 (σ_0.2)	1225	9	20	321
ASTM A322-91 / ASTM A304-05	SAE5160	830~860	Oil	460~520	1080 (σ_0.2)	1225	9	20	321
JIS G4801-2005	SUP9A	830~860	Oil	460~520	1080 (σ_0.2)	1230	9	20	302

Method of test:

Item	Item of Test	Quantity of Sample	Location of Sample	Test Method
1	Chemical Composition	1/furnace	Random	ASTM A29
2	Hardness	3	Different Bars	GB/T231.1
3	Jominy	1	Random	GB/T225
4	Macrostructure	2	Different Bars	ASTM E381
5	Decarbonization	3	Different Bars	GB/T224
6	Non-metal Inclusions	6	Different Bars	ASTM E45
7	Grain Size	1	Random	ASTM E112
8	Surface	Every Bar	Through the Bar	With Naked Eyes
9	Measurement	Every Bar	Through the Bar	Callipers,Micrometer

Production show :

Packaging & Shipping

Packing and shipping:

laboratory: