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30MnCrB5 Rotary Tiller Blades Material ,Spring Steel Flat Bar, Size:60*8mm, Sample:freely, ISO9001 Certificate, Payment:L/C,T/T - details see: https://www.machineto.com/30mncrb5-rotary-tiller-blades-material-spring-steel-flat-bar-10171555

30MnCrB5 Rotary Tiller Blades Material ,Spring Steel Flat Bar

1)Size tolerance:

Width: 40mm-200mm(+-0.3mm)

Thickness: 5mm to 35mm(+-0.2mm)

Length: 5.8meter(+-5cm) or base on order requirement

2)Pakage:Bundle ,bundle weight base on customer's requirement

3)Sample:free of charge ,but DHL freight customer paid .

4)Exported Market:India,Kenya,Spain,Panama, Columbia , Thailand,Malaysia ,Taiwan

5)Delivery time:within two weeks after receive your advance payment or workble L/C at sight.

Production Process :

1)Iron Smelting 2)150*150mm or 120*120mm billet

3)All kinds of grade billet prepared for flat bar production 4)Spring steel flat bar production line

5)Storage of kinds of grade flat bars 6)Ship loading for export

7)Usage

CHEMICAL COMPOSITION:

China				Components									HB=<
	America	Japan	Germany	C	Si	Mn	Cr	V	B	P		S
										=<
65Mn	1066			0.62-0.70	0.17-0.37	0.90-1.20	≤0.25			0.035	0.035		302
55Si2Mn	9255		55Si7	0.52-0.60	1.50-2.00	0.60-0.90	≤0.35			0.035	0.035		302
60Si2Mn	9260	SUP6	60Si7	0.56-0.64	1.50-2.00	0.60-0.90	≤0.35			0.035	0.035		321
60Si2MnA	9260	SUP6	60Si7	0.56-0.64	1.60-2.00	0.60-0.90	≤0.35			0.030	0.030		321
55CrMnA	5155	SUP9	55Cr3	0.52-0.60	0.17-0.37	0.65-0.95	0.65-0.95			0.030	0.030		321
60CrMnA	5160	SUP9A		0.56-0.64	0.17-0.37	0.70-1.00	0.70-1.00			0.030	0.030		321
50CrVA	6150	SUP10A	51CrV4	0.46-0.54	0.17-0.37	0.50-0.80	0.80-1.10	0.10-0.20		0.030	0.030		321
60CrMnBA	51B60	SUS11	58CrMnB4	0.56-0.64	0.17-0.37	0.70-1.00	0.70-1.00		0.0005-0.004	0.030	0.030		321

MECHANICAL PROPERTIES

Grade	Heat treatment°C		Mechanical Properties
	Quenching (oil quenching)	Tempering	0.2% proof stress(N/mm2)	Tensile Strength(N/mm2)	Elongation % min	Peduction in cross sectional area %	Hardness HB
					Test piece no 4 or 7
SUP6	830-860	480-530	1079 Min	1226 Min	9 Min	20 Min	321 Max
SUP9	830-860	460-510	1079 Min	1226 Min	9 Min	20 Min	321 Max
SUP9A	830-860	460-520	1079 Min	1226 Min	9 Min	20 Min	321 Max
SUP10	840-870	470-540	1079 Min	1226 Min	10 Min	20 Min	321 Max
SUP11A	830-860	460-520	1079 Min	1226 Min	9 Min	20 Min	321 Max