TSR | Expert of mill rolls

Trust Stemming from Reliability

Rolls for Cold Rolling Mills

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forged rolls finished 2

forged rolls finished1

Introduction of Production Capacity

VC + ESR

Dissolved Hydrogen is controlled to 1.0-1.5 ppm.
To minimise gas pickup (oxygen and hydrogen).
Clean ingot.
Homogeneous and refining microstructure.
ESR roll has the advantages of high wear-resistance, high anti-accident and high uniformity of surface hardness.

Quenching And Machining

Facility Machining Capacity

Maximum product dimensions	Work rolls	Back-up rolls
Total length	6000 mm	6500 mm
Body length	3500 mm	2500 mm
Diameter	910 mm	1500 mm
Hardening depth (Single side)	50 mm	100 mm
Maximum product weight	13000 kg	50000 kg
Capacity (ton/year)	8000	1000

Chemical Composition & Property

WR

Material	Chemical Composition
Material	C	Si	Mn	Cr	Ni	Mo	V	P	S
3%Cr Series	0.75-0.95	0.2-0.9	0.2-0.6	2.5-3.2	0.2-0.8	0.2-0.6	＜0.25	≤0.02	≤0.015
5%Cr Series	0.7-0.95	0.2-0.9	0.2-0.6	4.5-5.4	0.1-0.8	0.1-0.6	＜0.25	≤0.02	≤0.015

Material	Tensile Property Mpa	Barrel Hardness HSD	Working Layer Composition	Hardening Depth mm	Roller Application
3%Cr Series	≥850	88-100	martensite+M3C (few M7C) and Ar	20-28	Single stand mill, skin pass mill, tandem mill
5%Cr Series	≥950	90-100	martensite+M7C and few Ar	30-50	Single stand mill, skin pass mill, tandem mill

BUR

Material	Chemical Composition
Material	C	Si	Mn	Cr	Ni	Mo	V	P	S
3%Cr Series	0.4-0.8	0.3-0.7	0.4-0.8	4.5-5.5	0.2-0.8	0.3-0.8	＜0.25	≤0.015	≤0.015
5%Cr Series	0.4-0.65	0.2-0.6	0.4-0.8	2.0-3.0	0.2-0.8	0.3-0.7	＜0.25	≤0.015	≤0.015

Material	Tensile Property Mpa	Barrel Hardness HSD	Working Layer Composition	Hardening Depth mm	Roller Application
3%Cr Series	≥880	50-65	Martensite (bainite) + Carbide	40-60	Single stand mill, Cold & Hot rolling tandem mill
5%Cr Series	≥950	55-80	Martensite (bainite) + Carbide	50-100	Single stand mill, Cold & Hot rolling tandem mill

Sendzimir Rolls

Material	Mill Type	Roll Type	Hardness
Cr12MoVCo Cr12Mo1V1 (D2)	Sendzimir 12-Hi CR mill	WR	60-64 HRC
5H12 H12	Sendzimir 12-Hi CR mill	First IMR	50-62 HRC
5H12	Sendzimir	Second IMR	50-62 HRC