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We can provide the pipe moulds such as T-tube-type water-cooled metal mold, S-type, N-type and K-type thermal tube molds.

Grade : 15Cr2Mo, 21CrMo10, and 30CrMo.

Dimension : Dia 80mm~1200mm with 3~6m length.

The steelmaking process is EBT+LF/VD and the ingots were forged to the required form once by hydraulic press machine or rotary radial forging machine. The ultrasonic test is carried on according to JB/T1581-96. The pipe mould will be quenched& tempered and performed relieving stress after rough machining (boring), and then the finished machining will be carried out by numerically controlled lathe to meet the quality requirements.

With the same lifetime to those made in America and Germany, our pipe moulds were provided for lots of large manufacturers in China, and were exported to the Central Asia, South Asia, Europe and North America etc.

Standard : YB/T4179-2008, or as per technology agreement.

Grade	C	Si	Mn	Cr	Mo	P	S
15Cr2Mo	0.12～0.18	0.17～0.37	0.40～0.70	2.30～2.60	0.40～0.55	≤0.009	≤0.009
21CrMo10	0.16～0.23	0.20～0.40	0.20～0.40	2.20～2.60	0.30～0.50	≤0.009	≤0.009
30CrMo	0.23～0.30	0.17～0.37	0.40～0.70	0.80～1.10	0.15～0.25	≤0.009	≤0.009

The contents of harmful elements, such as lead, arsenic, tin, stibium, bismuth etc. could be controled according to the purchaser requirement.

Mechanical Property

Grade	Rm（MPa）	Rp0.2（MPa）	A（%）	Z（%）	AK（ J）	HBW
15Cr2Mo	≥780	≥680	≥12	≥50	≥78	≥230
21CrMo10	≥780	≥650	≥16	≥60	≥78	≥240
30CrMo	≥780	≥680	≥10	≥35	≥21	≥200

The maximum difference of hardness for the full length pipe mould shall be not more than 40HBW.
The Structure of T-tube-type water-cooled metal pipe mold

The size of T-tube-type water-cooled metal mold(mm)

Dia	L1	L2	L3	D1	D2	D3	D4	D5	D6	（Kg）
80	6287	27	6129	270	205	164.7	97.2	164	183	530
100	6287	27	6129	270	205	164.7	116.8	164	183	400
150	6287	27	6129	325	266	217	168.9	209	209	605
200	6287	27	6129	385	325	281	221.1	261	288	764
250	6287	27	6129	455	385	336	273.4	320	340	1112
300	6287	27	6129	520	443	393.9	325.2	376	387	1434
350	6341	37	6169	575	495	448	378	444	450	2045
400	6341	37	6169	615	550	502	429	494	502	2416
500	6341	37	6169	755	663	606.5	532.1	608	610	3557
600	6348	44	6169	850	790	716.1	635.3	715	730	4274
700	6348	44	6169	970	902	828	738.5	828	835	5838
800	6600	181	6180	1148	1013	948.4	843.5	940	930	7269
900	6600	181	6180	1258	1123	1058	947.5	1063	1060	9800
1000	6600	181	6180	1350	1233	1165	1051	1166	1160	10516

The Structure of S-type &N-type thermal tube mold

Dia	L1	L2	L3	L4	D1	D2	D3	D4	D5	（Kg）
150	6270	1342	200	500	460	170.7	320	290	290	2900
200	6470	1442	200	500	470	221.9	380	350	350	3128
250	6470	1475	490	425	613	274.4	480	395	395	3853
300	6505	1400	490	425	588	328	480	450	450	4019
400	6505	1400	490	425	716	429.1	580	550	550	4815
500	6505	1400	490	425	825	533.1	680	650	650	7213
600	6445	1475	490	425	982	635.7	790	760	760	7677

The Structure of K-type Pipe mold

Dia	L1	L2	L3	L4	D1	D2	D3	D4	D5	（Kg）
1000	8545	2000	4200	790	1371	1231	1054.4	1540	1195	21000
1200	8545	2000	4200	790	1597	1447	1262.6	1540	1412	25000

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