{"id":893,"date":"2026-08-17T07:00:41","date_gmt":"2026-08-17T07:00:41","guid":{"rendered":"https:\/\/engineer-class-chain.com\/?post_type=product&p=893"},"modified":"2026-08-17T09:59:50","modified_gmt":"2026-08-17T09:59:50","slug":"slag-conveyor-chain-gb-t-12718-grade-b-c-14-30-mm","status":"publish","type":"product","link":"https:\/\/engineer-class-chain.com\/am\/product\/slag-conveyor-chain-gb-t-12718-grade-b-c-14-30-mm\/","title":{"rendered":"Slag Conveyor Chain \u2013 GB\/T 12718 | Grade B & C | 14\u201330 mm"},"content":{"rendered":"

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Ever-power Engineer Class Chain Co., Ltd<\/p>\n

Slag Conveyor Chain<\/h2>\n

Grade B & C \u00a0\u00b7\u00a0 14\u201330 mm \u00a0\u00b7\u00a0 GB\/T 12718 \u00a0\u00b7\u00a0 Min. Elongation at Break 10%<\/p>\n

Round link chains for submerged scraper conveyors, bottom ash handling systems, and slag extraction equipment in coal-fired power stations and industrial furnace plants. Twelve standard sizes covering breaking loads from 190 to 1,130 kN in Grade B and 250 to 1,130 kN in Grade C.<\/p>\n

View Specifications<\/a><\/div>\n<\/div>\n
\"Slag<\/p>\n
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Standard: GB\/T 12718 \u00a0|\u00a0 ISO 9001 \u00a0\u00b7\u00a0 ISO 14001 \u00a0\u00b7\u00a0 CE Mark \u00a0\u00b7\u00a0 MA Mining Safety \u00a0\u00b7\u00a0 Lloyd’s Register \u00a0\u00b7\u00a0 DNV<\/p>\n<\/section>\n

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Product Overview<\/p>\n

Round Link Chain for Submerged Slag and Ash Handling<\/h2>\n

Slag conveyor chains are round link chains designed for submerged scraper conveyors (\u635e\u6e23\u673a) used in bottom ash and slag extraction from coal-fired power stations, industrial boilers, and furnace plant. Operating conditions combine high temperature, wet abrasive slag, and continuous heavy-load cycling \u2014 requirements that differ significantly from standard mining or lifting chain duty.<\/p>\n

Ever-power Engineer Class Chain Co., Ltd manufactures slag conveyor chains to GB\/T 12718<\/strong>, available in Grade B<\/strong> and Grade C<\/strong>, covering diameters from 14 to 30 mm<\/strong>. Minimum breaking loads range from 190 kN (14 mm Grade B)<\/strong> to 1,130 kN (30 mm Grade C)<\/strong>. Minimum elongation at break is 10%<\/strong> across all sizes and grades.<\/p>\n

Chain dimensions are matched to standard submerged scraper conveyor trough profiles. Multiple size combinations are available within the same nominal diameter to accommodate specific equipment configurations from different conveyor manufacturers.<\/p>\n<\/div>\n

\"Ever-power<\/div>\n<\/section>\n

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Technical Data<\/p>\n

Dimensional & Load Specifications<\/h2>\n

Reference standard: GB\/T 12718 \u00a0|\u00a0 Dimensions in mm \u00b7 Weight in kg\/m \u00b7 Breaking loads in kN \u00b7 Min. elongation at break: 10%<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Diameter (mm)<\/th>\nInner Length (mm)<\/th>\nInner Width (mm)<\/th>\nOuter Width (mm)<\/th>\nWeight (kg\/m)<\/th>\nMin. Breaking Load (kN)<\/th>\n<\/tr>\n
Grade B<\/th>\nGrade C<\/th>\n<\/tr>\n<\/thead>\n
14<\/td>\n50<\/td>\n17<\/td>\n48<\/td>\n4<\/td>\n190<\/td>\n250<\/td>\n<\/tr>\n
16<\/td>\n64<\/td>\n22<\/td>\n58<\/td>\n5<\/td>\n250<\/td>\n320<\/td>\n<\/tr>\n
18<\/td>\n64<\/td>\n21<\/td>\n60<\/td>\n6.6<\/td>\n320<\/td>\n410<\/td>\n<\/tr>\n
19<\/td>\n64.5<\/td>\n22<\/td>\n63<\/td>\n7.6<\/td>\n360<\/td>\n450<\/td>\n<\/tr>\n
22<\/td>\n80<\/td>\n31<\/td>\n83<\/td>\n10<\/td>\n480<\/td>\n610<\/td>\n<\/tr>\n
22<\/td>\n86<\/td>\n26<\/td>\n74<\/td>\n9.5<\/td>\n480<\/td>\n610<\/td>\n<\/tr>\n
24<\/td>\n86<\/td>\n28<\/td>\n79<\/td>\n11.6<\/td>\n570<\/td>\n720<\/td>\n<\/tr>\n
26<\/td>\n91<\/td>\n35<\/td>\n94<\/td>\n14.3<\/td>\n670<\/td>\n850<\/td>\n<\/tr>\n
26<\/td>\n92<\/td>\n30<\/td>\n86<\/td>\n13.7<\/td>\n670<\/td>\n850<\/td>\n<\/tr>\n
26<\/td>\n100<\/td>\n31<\/td>\n87<\/td>\n13.3<\/td>\n670<\/td>\n850<\/td>\n<\/tr>\n
30<\/td>\n108<\/td>\n34<\/td>\n98<\/td>\n18<\/td>\n890<\/td>\n1,130<\/td>\n<\/tr>\n
30<\/td>\n120<\/td>\n36<\/td>\n102<\/td>\n17.6<\/td>\n590<\/td>\n1,130<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Multiple inner length variants at the same diameter accommodate different conveyor trough configurations \u00a0\u00b7\u00a0 Min. elongation at break: 10% (all sizes and grades)<\/p>\n<\/div>\n<\/section>\n

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Construction & Standards<\/p>\n

Product Features<\/h2>\n\n\n\n\n\n
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Standard: GB\/T 12718<\/h3>\n

All slag conveyor chains are manufactured and tested to GB\/T 12718, the Chinese national standard covering dimensional tolerances, mechanical property requirements, and acceptance test procedures for mining and industrial round link chains used in scraper conveyor applications.<\/p>\n<\/td>\n

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Grade B and Grade C<\/h3>\n

Grade B provides the standard breaking load for each diameter. Grade C provides a higher breaking load \u2014 approximately 25\u201335% above Grade B at the same size \u2014 for heavier duty or higher-throughput slag extraction systems. Both grades carry a minimum elongation at break of 10%.<\/p>\n<\/td>\n<\/tr>\n

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Multiple Profile Variants per Diameter<\/h3>\n

At 22 mm, 26 mm, and 30 mm nominal diameter, two or three inner length and inner width combinations are available. This accommodates the dimensional requirements of different submerged scraper conveyor manufacturers without requiring custom chain production.<\/p>\n<\/td>\n

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Designed for Wet Abrasive Slag Duty<\/h3>\n

Slag conveyor chains operate submerged in water containing abrasive ash particles at elevated temperatures. The alloy steel composition and heat treatment specification are selected to provide adequate wear resistance and fatigue life under these continuous wet abrasive load conditions.<\/p>\n<\/td>\n<\/tr>\n

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Size Range: 14 to 30 mm<\/h3>\n

Twelve size-profile combinations from 14 mm to 30 mm diameter cover the range of submerged scraper conveyors used in coal-fired power station bottom ash systems, from smaller boiler units through to large utility-scale generating plant.<\/p>\n<\/td>\n

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Compatible with Scraper Flight Assemblies<\/h3>\n

Slag conveyor chains are dimensioned to be compatible with standard scraper flight bar and trough assemblies used in submerged chain conveyors. Chain dimensions should be verified against the equipment manufacturer’s specification before ordering to confirm interchangeability.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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\"Slag<\/p>\n
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Application Sectors<\/p>\n

Where Slag Conveyor Chains Are Used<\/h2>\n
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\ud83d\udd25<\/span><\/p>\n
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Coal-Fired Power Station Bottom Ash Systems<\/p>\n

Primary application: submerged scraper conveyors extracting clinker and bottom ash from boiler furnace hopper water baths.<\/p>\n<\/div>\n<\/div>\n

\ud83c\udfed<\/span><\/p>\n
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Industrial Boiler Slag Extraction<\/p>\n

Submerged chain conveyors in industrial and process plant boilers burning coal, biomass, or waste fuel.<\/p>\n<\/div>\n<\/div>\n

\u2699\ufe0f<\/span><\/p>\n
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Cement Kiln & Metallurgical Furnace Plant<\/p>\n

Slag and clinker handling conveyors in cement production, steel making, and non-ferrous smelting plant.<\/p>\n<\/div>\n<\/div>\n

\u267b\ufe0f<\/span><\/p>\n
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Waste-to-Energy & Biomass Plant<\/p>\n

Bottom ash extraction from waste incineration and biomass combustion facilities where continuous submerged operation is required.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Approvals & Certifications<\/p>\n

International Certifications<\/h2>\n

Ever-power Engineer Class Chain Co., Ltd holds certifications covering mining, marine, and general industrial chain supply. Certificate documentation is provided on request during the enquiry process.<\/p>\n\n\n\n\n\n\n
\u2714 ISO 9001<\/td>\n\u2714 ISO 14001<\/td>\n<\/tr>\n
\u2714 MA Mining Safety<\/td>\n\u2714 CE Mark<\/td>\n<\/tr>\n
\u2714 Lloyd’s Register<\/td>\n\u2714 DNV<\/td>\n<\/tr>\n
\u2714 Bureau Veritas<\/td>\n\u2714 ABS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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FAQ<\/p>\n

Frequently Asked Questions<\/h2>\n
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What is a slag conveyor chain used for?<\/h3>\n

Slag conveyor chains (\u635e\u6e23\u673a\u94fe\u6761) are round link chains used as the traction element in submerged scraper conveyors (\u635e\u6e23\u673a). These conveyors extract bottom ash and slag from water-filled hoppers beneath coal-fired boilers, industrial furnaces, and waste incineration systems, conveying the wet ash to a discharge point for disposal or reuse.<\/p>\n<\/div>\n

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What is the difference between Grade B and Grade C?<\/h3>\n

Grade C provides a higher minimum breaking load than Grade B at the same nominal diameter. For example, at 26 mm diameter, Grade B breaking load is 670 kN and Grade C is 850 kN. Grade C is specified for higher-throughput systems or where a greater safety margin is required. Both grades carry a minimum elongation at break of 10%.<\/p>\n<\/div>\n

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Why are there multiple profile variants at the same nominal diameter?<\/h3>\n

Different submerged scraper conveyor manufacturers use different trough widths and scraper pitch dimensions at the same nominal chain diameter. Multiple inner length and inner width combinations are available at 22 mm, 26 mm, and 30 mm to match specific equipment makes without requiring custom chain production.<\/p>\n<\/div>\n

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Is slag conveyor chain the same as mining round link chain?<\/h3>\n

Both are round link chains manufactured to GB\/T 12718, and their dimensional and load specifications overlap. However, slag conveyor chains are specifically dimensioned for submerged scraper conveyor applications where the trough geometry and scraper attachment points differ from those of coal face armoured face conveyors. Please verify dimensions against your specific equipment before ordering.<\/p>\n<\/div>\n

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What information is needed to confirm the correct chain specification?<\/h3>\n

To confirm the correct specification, please provide: nominal chain diameter, inner length, inner width, required grade (B or C), quantity, and if possible the conveyor manufacturer and model designation. This allows confirmation of the correct profile variant before production.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Also from Ever-power<\/p>\n

Related Products<\/h2>\n\n\n\n\n\n
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Mining Chains<\/p>\n

Mining Round Link Chain<\/a><\/p>\n

DIN 22252 \u00b7 Grade B\/C \u00b7 10\u00d740 to 42\u00d7146 mm \u00b7 armoured face conveyors and scraper systems<\/p>\n<\/td>\n

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Mining Chains<\/p>\n

Mining Compact Chain<\/a><\/p>\n

GB\/T 12718 \u00b7 Grade C\/D \u00b7 22\u00d786 to 60\u00d7197 mm \u00b7 compact-profile scraper conveyors<\/p>\n<\/td>\n<\/tr>\n

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Mining Accessories<\/p>\n

Central Chain Scraper Flight Bar<\/a><\/p>\n

Compatible with 22\u00d786 to 42\u00d7146 mm chain \u00b7 matched to conveyor trough dimensions<\/p>\n<\/td>\n

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Mining Accessories<\/p>\n

Round Link Chain Connecting Links<\/a><\/p>\n

Flat-arc and flat-saw-tooth types \u00b7 18\u00d764 to 48\u00d7152 mm<\/p>\n<\/td>\n<\/tr>\n

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Specialty Chains<\/p>\n

Stainless Steel Chain<\/a><\/p>\n

304 \/ 316 \/ 2520 \u00b7 2\u201332 mm \u00b7 high-temperature and corrosion-resistant conveyor applications<\/p>\n<\/td>\n

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Lifting Chains<\/p>\n

Grade 80 Lifting Chain<\/a><\/p>\n

EN 818-2 \u00b7 6\u201348 mm \u00b7 maintenance lifting in power station and industrial plant<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Slag conveyor chains are part of a wider category of industrial round link chain products for power generation and process plant material handling. Those specifying chain for coal handling or ash disposal systems may also find reference in conveyor chain selection and load rating guidance<\/a> and power transmission chain standards<\/a> relevant to adjacent plant drives. For heavy-duty chain products used in connected infrastructure, heavy-duty chain engineering data<\/a> and industrial roller chain specifications<\/a> provide complementary technical context.<\/p>\n<\/div>\n<\/section>\n


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