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Brief Introduction to Baomin/QIS Products 91 129 2004 2007 The main steel products of QIS are welding steel, carbon structure steel, high quality carbon structure steel, unalloyed steel for special utilization, low alloyed structure steel, structuralsteel, alloy

spring flat steel, rebar steel, steel for cold heading and cold extruding, free cutting steel,

prestressing steel, steel for bead wire, steel for steel cord and so on. There are such kinds of products as hot rolled wire rod, hot rolled section steel and so on with 91 grades and 129 specifications. The products are awarded with the honor of provincial and municipal famous brand products and Golden Cup Prize of metallurgical products quality. Hot rolled reinforced bar with rib is honored with national product exempt from inspection for quality. In 2004, hot rolled wire rod was awarded with National Customer Satisfactory Product and the wire rod for welding, hot rolled reinforced bar with rib won the title of First Brand of Customer Satisfactory for Product Quality in China Iron & Steel Market. In 2007, the high quality hot rolled carbon steel wire rod won the title of Chinese Famous Brand.

1 GB/T3429-2002 H08A ER50-6E H08Mn2SiA H08MnA 120 20 ER50-C Mo ER50-G( Ti) EH14 EM12K 2001 2003 H08A 1997 H08A 5.5mm ER50-6 E 1.0mm 1999 2000 2004

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1. Steel Wire Rod for WeldingGB/T3429-2002 and internal control standard is adopted for this product. The steel wire rod for welding could be used to produce welding rod, gas shield welding wire and submerged arc welding and so on. The main grades are H08A, ER50-6 (E), H08Mn2SiA, H08MnA and so on. With million tons of annual production, higher market occupation rate and more than 120 customers, this product is in great demand in more than 20 provinces and cities in domestic market and even sold abroad as well. In recent years, in order to meet the customers requirements, some special soldering wire is developed one after another, such as ER50-C (with Mo), ER50-G (with Ti), EH14 and EM12K. In 2001, this product was awarded with the Golden Cup Prize of metallurgical product quality by China Iron and Steel Association and the steel wire rod for the gas shielded welding wire won the title of Famous Brand of Shandong Province and confirmed again in 2003. The steel for welding rod H08A of QIS has a long history and is popular to many customers. After the realization of continuous casting in 1997, the wire rod for welding rod of H08A is accepted firstly by the market, and is evaluated as the New Product of National Level by China Economy and Trading Association and won the prize of Metallurgical Science and Technology progress of Shandong Province and Excellent New Product of Qingdao. With the uniform and stable components, steel quality, metallographic structure and mechanical performance, the steel wire rod for welding of 5.5mm ER50-6E produced by our company could be drawn directly to the product of 1.0mm without interannealing under the condition of higher drawing velocity. This product comes up to the domestic advanced level with the features of less welding splashing, smooth and good welding seam and high strength and gained the prize of Metallurgical Science and Technology Progress Prize of Shandong Province and Excellent New Product of Qingdao respectively in 1999 and 2000. In 2004, on the First Session News Release Conference of Customer Satisfactory Degree Investigation for the Product Quality in Chinese Market holding in Conference Hall of Beijing, the steel wire rod for welding won the title of No.1 Brand of the Customer Satisfactory for Product Quality in Chinese Iron and Steel Market. QIS has become the supplier of some large domestic production enterprises of welding consumables. C Mn Si P % S Cr H08A0.10 0.350.60 0.07 0.030 0.03 0 0.20 0.30 0.20

Ni

Cu

H08E

0.10

0.350.60

0.03

0.020

0.02 0

0.20

0.30

0.20

ER506E ER50-6

0.060.09

1.401.60

0.800.95

0.020

0.02 0

0.10

0.15

0.10

0.060.13

1.401.80

0.801.15

0.025

0.03 5

0.20

Cr.Ni 0.50

2

H08Mn A H10Mn SiH10MnSi A

0.10

0.801.10

0.07

0.030

0.03 0

0.20

0.30

0.20

0.14

0.801.10

0.600.90

0.035

0.03 5

0.20

0.30

0.20

0.060.15

0.901.40

0.450.75

0.030

0.02 5

0.20

0.30

0.20

H10Mn 2H08Mn2S i H08Mn2S iA

0.12

1.501.90

0.07

0.035

0.03 5

0.20

0.30

0.20

0.11

1.702.10

0.650.95

0.035

0.03 5

0.20

0.30

0.20

0.11

1.802.10

0.650.95

0.030

0.03 0

0.20

0.30

0.20

EM12K EH14 ER50-C ER50-G

0.050.15 0.100.20

0.801.25 1.702.20

0.100.35 0.10

-

-

0.35 0.35

0.30 0.30

0.30 0.30

5.5mm, 6.5mmGrade C Mn Chemical Composition Si P % S Cr No More Than H08A H08E ER50-6E ER50-6 0.10 0.10 0.060.09 0.060.13 0.350.60 0.350.60 1.401.60 1.401.80 0.07 0.03 0.800.95 0.801.15 0.030 0.020 0.020 0.025 0.030 0.020 0.020 0.035 0.20 0.20 0.10 0.20 0.30 0.30 0.15 Cr. Ni 0.20 0.20 0.10 and Ni Cu

Others 0.50 H08MnA H10MnSi H10MnSi A H10Mn2 H08Mn2S i H08Mn2S iA EM12K EH14 0.050.15 0.100.20 0.801.25 1.702.20 0.100.35 0.103

0.10 0.14 0.060.15

0.801.10 0.801.10 0.901.40

0.07 0.600.90 0.450.75

0.030 0.035 0.030

0.030 0.035 0.025

0.20 0.20 0.20

0.30 0.30 0.30

0.20 0.20 0.20

0.12 0.11

1.501.90 1.702.10

0.07 0.650.95

0.035 0.035

0.035 0.035

0.20 0.20

0.30 0.30

0.20 0.20

0.11

1.802.10

0.650.95

0.030

0.030

0.20

0.30

0.20

-

-

0.35 0.35

0.30 0.30

0.30 0.30

ER50-C ER50-G

At Mutual Agreements

Specifications: 5.5mm, 6.5mm

2 2. Hot Rolled Wire Rod for Steel Cord Steel cord usually has the title of best quality wire, which is the typical product of super clean steel and the landmark product of wire quality level. Steel cord as the framework material for reinforcing radial tire is mainly used to manufacture the wire mesh of undercarriage tire of plane and tire of large auto and super sedan. YB/T170.4-2002 C72D2 C82D2 C86D2 C92D2-E S P C72D2 C82D2 C72D2 C82D2 08 6 C92D2-E 3 The hot rolled wire rod for steel cord produced by QIS adopts the national standard YB/T170.4-2002 and the enterprise internal control standard, with the main grades of C72D2, C82D2, C86D2, C92D2-E. Because of the large drawing deformation and special use performance the steel is required to have fewer contents of S and P, very high requirements to the quantity, variety and shape of inclusions, and accurate rolling tolerance. QIS is capable to provide mass and stable production of C72D2 and C82D2 to meet the customers demand. The steel cord products of C72D2 and C82D2 passed the provincial technical evaluation in June, 2008 and its quality has reached the international advanced level. QIS has successfully trialproduced the C92D2-E steel wire rod for steel cord with super high strength and every index reaches the international advanced level and fills up the domestic market margin. At present the monthly production of steel cord with common and high strength has reached above 30,000 tons with good reactions from customers. C72D2 C82D2 C86D2 C92D2-E Application: The steel wire rods for steel cord, such as C72D2, C82D2, C86D2, and C92D2-E etc., are mainly used for the production of steel cord and flose wire. 5.5mm The wire rod diameter is 5.5mm. (%)

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Grade

C

Si

Mn

P

S

Cr

Ni

Mo

Cu

Al

Nppm

P+S

No More Than C72D2 0.69 0.74 C82D2 0.79 0.84 0.15 0.30 0.15 0.30 0.45-0.60 0.0200.015 0.05 0.03 0.02 0.03 0.00 4 0.45-0.60 0.0150.015 0.05 0.03 0.02 0.03 0.00 4 40 0.020 40 0.020

GB/T 222 Chemical Composition (%) Grade C Si Mn P S Cr Ni Mo Cu Al Nppm P+S

not more than C72D2 C82D2 0.690.74 0.150.30 0.790.84 0.150.30 0.45-0.60 0.0200.015 0.05 0.45-0.60 0.0150.015 0.05 0.03 0.03 0.02 0.02 0.03 0.03 0.004 0.004 40 40 0.020 0.020

Notes: The allowable variation of analysis contents of finished products refers to GB/T 222.

3 3. Steel for Bead Wire The steel for bead wire is used to produce bead wire or steel cord, which is the representative steel of superb hard steel wire. GB/T 24242.2-2009 C70DA C72DA C80DA C82DA C88DA C92DA S P 2007 12 C82DA 3 Under the standard of GB/T 24242.2-2009 and enterprise inside controlled standard, the main grades of wire rod for bead wire are C70DA, C72DA, C80DAC82DAC88DA and C92DA. Because of the large drawing deformation the steel is required to have fewer contents of S and P, less impurity and accurate rolling tolerance. QIS has become the supplier of some main domestic bead wire producers with large quantities of production of hot rolled wire rod of bead wire. It passed the evaluation organized by Qingdao Economic Committee and Qingdao Science and Technology Bureau in Dec., 2007 and the quality of C82DA has reached the national advanced level. The monthly production has reached more than 30,000 tons with good reactions from customers. Application: Mainly used for drawing bead wire with common and high strength.

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C C70DA 0.67 0.72 C72DA 0.69 0.75 C80DA 0.77 0.82 C82DA 0.