Product Description

Product:
Alloy steel round bar 20Cr,ally steel bar 20Cr
Standard:GB,AISI,JIS,ASTM,EN,ASTM,etc
Material:
10#,S210C,S09CK,1010,C10E,15#,S15C,S15CK,1015,20#,
S20C,S20CK,1020,C22,25#,S25C,1025,30#,S30C,1030,35#,
S35C,1035,40#,S40C,1040,45#,S45C,1045,C45E,50#,S50C,
1050,55#,1055,60#,C60,20Mn,1022,25Mn,30Mn2,40Mn,50Mn,
20Cr,15Cr,30Mn2,1330,1335,1340,etc
Surface:Black painted,Galvanized,
Dimension:Round bar
Diameter:4mm-800mm
Package:
Standard seaworthy export package or as customer's request.
Application:
Carbon steel rod applies to chemical industry,shipping industry,
manufacturing industry,construction,decorate industry,electric
power,pump shafts,sanitary wares,furniture handles,boiler,high
temperature resistant,low temperature resistant,corrosion resistant.

1.Steel Grade:

GB	ASTM/AISI/SAE	JIS	DIN	BS
20Cr	5120	SCr420	20Cr4	527A19

GB	ASTM/AISI/SAE	JIS	DIN	BS
40Cr	5140	SCr440	41Cr4(1.7035)	530A40

2.Chemical composition

Grade	C	Cr	Mn	Si	P	S	Ni	Cu	Mo
					≤
20Cr	0.18-0.24	0.70-1.00	0.50-0.80	0.17-0.37	0.035	0.035	0.30	0.30	0.15
SCr420	0.18-0.23	0.90-1.20	0.60-0.90	0.15-0.35	0.030	0.030	0.25	0. 30	-
5120	0.17-0.22	0.70-0.90	0.70-0.90	0.15-0.35	0.035	0.040	-	-	-
20Cr4	0.17-0.23	0.90-1.20	0.60-0.90	0.15-0.40	0.035	0.035	-	-	-

Grade	C	Cr	Mn	Si	P	S	Ni	Cu	Mo
					≤
40Cr	0.37-0.44	0.80-1.10	0.50-0.80	0.17-0.37	0.035	0.035	0.30	0.30	0.15
SCr440	0.38-0.43	0.90-1.20	0.60-0.90	0.15-0.35	0.030	0.030	0.25	0. 30	-
5140	0.38-0.43	0.70-0.90	0.70-0.90	0.15-0.35	0.035	0.040	-	-	-
41Cr4	0.38-0.45	0.90-1.20	0.60-0.90	≤0.40	0.025	0.035	-	-	-