HENGYE products series

Cold rolled steel strip

First-rate products can let our customers cope with the market competition. Since the establishment of our company, we have set it as our goal. Viewing of the foresight on business & creative management, we always can find a way to stay on top.

The customers' requirements can be efficiently guaranteed with the logistical support & modern technology, which are contributed by our staffs with sense of duty. By the development in recent years, we have become one of the most important suppliers of cold rolled steel material in China. All staffs have been responsibly working to grant our customers best service & convenience, in a wish to develop the fair & mutual co-operation with counterparts.

Apart from the normal standard products,we also can make the special one asper the customer' s demands according to DIN 17200 RESP,DIN EN 10132 PART3 & DIN 17222 RESP,DIN EN 10132 PART4.

To get expected shape & bend effect,it is necessary to select a suitable material with metallurgical value & minute structures.Only after obtaining the accurate technology parameters,can we get the final data.

Product Parameter

Qualities

Commercial		St 2-St 4 to DIN 1624 / DIN EN 10139 or special grades IF quality to SEW 095 / DIN EN 10139		Heat treatable		C 22-C 60 CK 22-CK 60 38 Cr2-41Cr4 25CrMo4-42CrMo4 50CrV4 to DIN 17200/DIN EN 10132, part 3

Cold rolled wide coil		St 12-St 14 to DIN 1623, part 1/DIN EN 10130 or special grades		Spring steel		C 55-C 75 CK 55-CK 75 to DIN 17222/DIN EN 10132, part 4

Constructional		St37 -St70 to DIN 1623,part 2		High strength low alloy		ZSTE 260-ZSTE 420 to SEW 093/DIN EN 10268 ZE 380-ZE 800/special grades similar to SEW 093/DIN EN 10268 steel with high strength on demand

Case hardening		C 10-C 15 CK 10-CK15 15 Cr3 16MnCr5-20MnCr5 20MoCr4 to DIN 17200/DIN EN 10132/part 2		Electrical		semi finished qualities to DIN 46400, part2/DIN EN 10126

				Enamelling		EK2-EK4 to DIN 1623 part 3/DIN EN 10209

Sizes and weights

thickness		0,40-5,00mm		width		10-650mm

coils		up to 20 kg/mm of width		cut to length		450-5,100mm lengths

traverse wound		up to 30mm of width and max.3,500 kgs coils.

Tolerances

to DIN 1544/DIN EN 10140
to DIN 1541/DIN EN 10131
normal,fine and precision tolerances or by arrangement

Surfaces

Types of surfaces to DIN 1624/ DIN EN 10139

normal bright		BK/MA		scratch and pit-free		RP/MB

scratch and pit-free bright		RPG/MC

Cold rolled steel strip Parameter

Conditions		Annealed eventually Annealed & Surface is to be smoothly grinded. Hardened & Cold Grinded		Size & Weight		Length to be cut off：≤20kg/mm Width，1,000～4,000mm Length ≤ 30mm Lateral winding

Surface		Medium Brightness No scratch or hollow No scratch,hollow & brightness		Edge treatment		Rolled edge Cut edge Specially processed edge

Application Example

Knitting Machine Needle

Requirements on Steel Material:

No removal of carbon on the surface.
Fine-grained sphere treated with carbon.
Accurate thickness tolerance
Smooth surface,zero value.

Friction clutch spring

Material feature:

Be careful to anneal & grind,
Ensure few burs to break off easily.
Accurate thickness tolerance
Minimum bent on lateral direction

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