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| JIS SKD61 | DIN 1.2344 | ASTM H13/BS BH13 forged tube |
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牌號 Grade 4Cr5MoSiV1 | JIS SKD61 | DIN 1.2344 | ASTM H13
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GB |
DIN |
W-Nr. |
AISI |
JIS |
BS |
EN |
|
4Cr5MoSiV1 |
|
1.2344 |
H13 |
SKD61 |
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執行標準 Standard GB/T1299-2014
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尺寸、外形、允許偏差 Size , shape ,tolerance
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狀態 condition |
公差 tolerance |
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磨皮 grinding surface |
-0/+5mm |
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車削 machined surface |
-0/+3mm |
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自由長度 free length |
4-6m |
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定尺長度 fixed length |
-0/+50mm |
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超長 over long |
7-23m |
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彎曲度 straightness |
≦3mm/m, 總彎曲度total straightness length ≦ total length總長度0.5% |
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不圓度 ovality |
不大于公稱直徑公差的0.7倍 Not greater than 0.7 times the nominal diameter tolerance |
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鍛材生產直徑范圍forged bar dia range |
140-600mm |
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冶煉方法 smelting process
電弧爐+爐外精煉+真空脫氣冶煉，下注鋼錠，電渣重熔需在合同中注明 EAF+LF+VD bottom pour ingot, ESR need indicate in contract
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交貨狀態 delivery condition
退火磨氧化皮、車光、正火、調質，交貨狀態需合同注明 annealed grinding surface. If need machining, normalizing or Q&T need
indicate in contract
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化學成份 chemical composition
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Grade |
C |
Mn |
P |
S |
Si |
Cr |
V |
Mo |
|
H13 |
0.32 |
0.45 |
0.2 |
0.6 |
0.03 |
0.03 |
0.8 |
1.20 |
4.75 |
5.5 |
0.8 |
1.2 |
1.1 |
1.75 |
1.2344 /
X40CrMoV5-1 |
0.35 |
0.42 |
0.25 |
0.5 |
0.03 |
0.02 |
0.8 |
1.2 |
4.8 |
5.5 |
0.85 |
1.15 |
1.1 |
1.5 |
|
SKD61 |
0.35 |
0.42 |
0.25 |
0.5 |
0.03 |
0.02 |
0.8 |
1.2 |
4.8 |
5.5 |
0.8 |
1.15 |
1.0 |
1.5 |
其他元素檢測需要合同注明 other elements test result need indicate in contract.
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交貨硬度 hardness
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牌號grade |
退火狀態交貨硬度 annealing condition hardness HBW ≦ |
試樣淬火硬度test specimen hardness after Q&T |
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淬火溫度Q&T ℃ |
冷卻劑cooling agent |
洛氏硬度HRC ≧ |
|
H13 |
229 |
790±15℃ preheat 1020±6℃ heating, keep 5-15”,oil cooling ,550±6℃ tempering 2 hour |
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低倍組織 酸浸低倍試片上不得有目視可見的縮孔、夾雜、分層、裂紋、氣泡和白點。Macrostructure No visible shrinkage, inclusion, delamination,
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cracks, bubbles or white spots should be observed on the acid – soaked sample piece
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鋼材直徑diameter mm |
1組 group |
2組 group |
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中心疏松 center porosity |
錠型偏析segregation |
中心疏松center porosity |
錠型偏析segregation |
|
級，不大于 class ≦ |
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≦80 |
2.0 |
2.0 |
3.0 |
3.0 |
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>80-150 |
2.5 |
3.0 |
3.5 |
3.0 |
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>150-250 |
3.0 |
3.0 |
4.0 |
4.0 |
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>250-400 |
3.5 |
3.0 |
4.5 |
4.0 |
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>400 |
協商 Negotiate |
電渣鋼合格級別供需雙方協議 ESR steel qualified level need negotiate.
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顯微組織 microstructure
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珠光體組織 合格級別1-5級，熱壓力加工用鋼不檢測 pearlite 1-5 class
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網狀碳化物 直徑不大于60MM合格級別不大于3級 carbide network ≦ 3 class
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共晶碳化物不均勻度（冷作模具鋼檢測）Eutectic carbide inhomogeneity
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鋼材直徑diameter MM |
共晶碳化物不均勻度合格級別Eutectic carbide inhomogeneity qualified level |
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1組group |
2組 group |
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級，不大于 class ≦ |
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>120-400 |
6 |
協議Negotiate |
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>400 |
協議Negotiate |
協議Negotiate |
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非金屬夾雜物 nonmetallic inclusion
電渣鋼結果符合1組，真空脫氣鋼符合2組 ESR steel conform to 1 group , VD steel conform to 2 group
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非金屬夾雜物類別nonmetallic inclusion type |
1組 group |
2組 group |
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細系thin series |
粗系heavy series |
細系thin series |
粗系heavy series |
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級，不大于 class ≦ |
|
A |
1.5 |
1.5 |
2.5 |
2.0 |
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B |
1.5 |
1.5 |
2.5 |
2.0 |
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C |
1.0 |
1.0 |
1.5 |
1.5 |
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D |
2.0 |
1.5 |
2.5 |
2.0 |
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脫碳層 decarburized layer
脫碳層深度不大于0.25+1%D,直徑大于150mm雙方協議 decarburized layer depth not greater than 0.25+1%D, diameter over 150mm negotiate.
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超聲檢測 UT test
執行標準GB/T6402-2008,常規規格執行D/d級，直徑400以上雙方協議，鋼材內部不允許有白點、夾渣、分層、內裂、縮孔等冶金缺陷 standard as
per GB/T6402-2008 /SEP1921 C/c or D/d class. No white spot, slag inclusion, delamination, cracking, shrinkage and other metallurgical
defects are allowed inside the steel
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缺陷尺寸級別 defect size level |
單個缺陷平底孔直徑single FBH mm |
連續缺陷平底孔直徑continuous FBH mm |
連續缺陷最大長度continuous FBH length mm |
|
C |
7 |
5 |
40 |
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D |
5 |
3 |
30 |
|
E |
3 |
2 |
30 |
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缺陷數量級別defect qty level |
單個缺陷數量single FBH QTY |
連續缺陷數量continuous FBH QTY |
|
個數，不大于 number ≯ |
|
c |
8 |
4 |
|
d |
4 |
2 |
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e |
2 |
1 |
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表面質量 surface quality
鍛材表面沒有目視可見的裂紋、折疊、結疤和夾雜，如有上述缺陷就清除，深度不大于截面尺寸4%，清除寬度不小于深度的5倍，There are no
visible cracks, folds, scars or inclusions on the surface. If there are any of the above defects, they should be removed with a depth not
greater than 4% of the section size and a width not less than 5 times of the depth.
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特殊要求 special requirements
超出標準約定范圍的供需雙方協議 The buyer and the seller negotiate beyond the agreed scope of the standard
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起訂量 常規生產牌號沒起訂量要求，有少量現貨，交貨期30天 MOQ :the grade regular for us no MOQ request , there are ready stock for
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regular diameter . No stock book order 30 days delivery time.
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特點及用途 features and applications: H13工具鋼是一種鉻熱工工具鋼，廣泛應用于熱工模具。特點是良好的耐磨耗低和高溫度,高水平的
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韌性和延展性,高水平的可加工性和拋光性,良好的高溫強度和抵抗熱疲勞,優秀的全硬化特性,變形硬化期間非常有限。鉬和釩充當強化劑。鉻
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含量有助于模具鋼H-13在高溫下使用時抗軟化。H-13模具鋼具有良好的抗沖擊和耐磨性，并具有良好的紅色硬度。它能夠承受快速冷卻和防
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止過早的熱裂。工具鋼H13具有良好的可加工性、焊接性、延展性。 H13 Tool Steel is chromium hot work tool steels which are widely used
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in hot and cold work tooling applications. AISI H-13 tool steel is characterized by good resistance to abrasion at both low and high temperatures,
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high level of toughness and ductility, uniform and high level of machinability and polishability, good high-temperature strength and resistance
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to thermal fatigue, excellent through-hardening properties, very limited distortion during hardening. the molybdenum and vanadium act as
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strengthening agents. The chromium content assists die steel H-13 to resist softening when used at high temperatures. H-13 die steels offers
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an excellent combination of shock and abrasion resistance, and possesses good red hardness. It is capable of withstanding rapid cooling and
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resists premature heat checking. Tool Steel H13 has good machinability, good weldability, good ductility。
優勢 advantage
工藝成熟，煉鋼采用氣體保護澆注，快鍛機開坯，徑鍛機成材并球化退火，鍛造頻率高恒溫鍛造有利于消除沿晶界分布的網狀碳化物.在1000℃余溫水淬
超細化處理，組織到AS3.用戶要求化學成份C, Mo, V P＜0.020 S＜0.010 O≦2.0 H≦2.0ppm及組織級別、力學性能≥250J都可以控制.圓棒長度可達25米，
圓餅直徑可達1.2米，鍛管外徑可達650mm.Pouring by gas protected , blooming by fast forging machine, forming by radial forging machine and spheroidize
annealing, forging with high frequency and constant temperature is helpful to eliminate the reticulated carbides distributed along the grain boundary. We all
do superfine treatment at 1000℃ lingering warmth, structure ≦3 class. If customer need control chemical composition , gas or impact also can do ,
P＜0.020 S＜0.010 O≦2.0 H≦2.0ppm, impact ≥250J. Round bar length up to 25m, discs diameter up to 1.2m, forged tube diameter up to 650mm.
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