YB/T 5035 45 Seamless Steel Tubes for Automobile Axle Housing, JIS G3441, 45, 45Mn2, 40MnB, 40Cr, 20CrNi3A

YB/T 5035 Seamless Steel Tubes for Automobile Axle Housing

Standard: YB/T 5035
Equivalent Standards: JIS G3441

Material: 45

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %	Cu, %	Cr, %	Ni, %	Mo, %	V, %
0.17-0.23	0.17-0.37	0.35-0.65	0.025 max	0.015 max	0.20 max	0.25 max	0.25 max	0.15 max	0.08 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Impact (KV2)/J	Hardness
410-550	245 min	24 min	40 (OD≥76mm & WT≥14mm)	HBW 120-160	HV 120-160

Outside Diameter & Tolerance

Hot Rolled	Outside Diameter, mm	Tolerance
	Outside Diameter, mm	Ordinary	Advanced
	OD＜57	±0.40mm	±0.30mm
	57≤OD≤325, WT≤35	±0.75%	±0.50%
	57≤OD≤325, WT>35	±1%	±0.75%
	325＜OD≤600	+1% or +5mm	-
	OD>600	+1% or +7mm	-
Cold Drawn	Outside Diameter, mm	Tolerance
	OD≤25.4	±0.15mm	-
	25.4＜OD≤40	±0.20mm	-
	40＜OD≤50	±0.25mm	-
	50＜OD≤60	±0.30mm	-
	OD>60	±0.50%	-

Wall thickness & Tolerance

Hot Rolled	Wall Thickness, mm	Tolerance
	Wall Thickness, mm	Ordinary	Advanced
	WT≤4.0	±0.45mm	±0.35mm
	4＜OD≤20	+12.5%/-10%	±10%
	WT>20, OD＜219	±10%	±7.5%
	WT>20, OD≥219	+12.5%/-10%	±10%
Cold Drawn	Wall Thickness, mm	Tolerance
	Wall Thickness, mm	Ordinary	Advanced
	WT≤3.0	±0.30mm	±0.20mm
	WT>3	±10%	±7.5%

YB/T 5035 specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of seamless steel tubes for automobile axle housing. YB/T 5305 is suitable for the manufacture of high quality carbon structural steel and alloy structural steel seamless steel tubes for automobile axle housing and drive axle body.
YB/T 5035规定了汽车半轴套管用无缝钢管的尺寸、外形、重量、技术要求、试验方法、检验规则、包装、标志和质量证明书。YB/T 5305适用于制造汽车半轴套管及驱动桥桥壳管用优质碳素结构钢和合金结构钢无缝钢管。

Manufacture: tubes to YB/T 5035 shall be manufactured by hot rolled or cold drawn.
Heat Treatment: the tubes shall be produced by heat treated as normalizing.
Inspection & Test: chemistry composition analysis, tension test, flattening test or bending test, flaring test, hardness test, impact test, grain size grade, decarburized layer of both inside & outside, macroscopic examination, non-metallic inclusions, microstructure, NDT, surface inspection and dimension check.

Length: 4000mm; 6000mm; 9000mm; 12000mm; and so on.
Max developed length: 30 meters, also U bending, finning, studded process can be provided.
Option: shot blasting on the outside surface to remove mill scale, make the surface matte colour; surface polishing as preparation work done for further processing, for instance finning.

Keyword: YB/T 5035, High Pressure Steel Pipe, Boiler Steel Pipe, Steam Boiler Pipe, Pipeline, Piping

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